Add protection against large network channel lists

Better optimize the scanning for object holders by unrolling streams.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -10,4 +10,4 @@ assignees: ''
 <!-- Please note, feature requests that are submitted as GitHub issues here are rarely implemented. -->
 <!-- If you'd like to see something in Forge, you should be ready to implement it as a PR. -->
 <!-- If you're not sure, open a Draft PR or discuss it in the Discord server. -->
-<!-- Discord: https://discord..minecraftforge.net/ -->
+<!-- Discord: https://discord.gg/UvedJ9m -->

.github/ISSUE_TEMPLATE/issue_report.md

@@ -11,7 +11,6 @@ assignees: ''
 
 <!-- For support with crashes and issues, please create a post on the forum instead: -->
 <!-- https://www.minecraftforge.net/forum/forum/18-support-bug-reports/ -->
-<!-- You can also use the discord for support, https://discord.minecraftforge.net/ -->
 
 **Minecraft Version:** {Minecraft version}
 

.github/workflows/publish.yml

@@ -2,7 +2,7 @@ name: Publish
 
 on:
   push:
-    branches: [ '1.21.11' ]
+    branches: [ '1.21.5' ]
 
 permissions:
   contents: read

build.gradle

@@ -4,11 +4,11 @@ import net.minecraftforge.gradleutils.PomUtils
 plugins {
     id 'net.minecraftforge.licenser' version '1.0.1'
     id 'com.github.ben-manes.versions' version '0.46.0'
-    id 'net.minecraftforge.gradleutils' version '[2.6.4,2.7)'
+    id 'net.minecraftforge.gradleutils' version '[2.3.0,2.4.0)'
     id 'eclipse'
     id 'de.undercouch.download' version '5.4.0'
-    id 'net.minecraftforge.gradle.patcher' version '[6.0.46,6.2)' apply false
-    id 'net.minecraftforge.gradle.mcp' version '[6.0.46,6.2)' apply false
+    id 'net.minecraftforge.gradle.patcher' version '[6.0.22,6.2)' apply false
+    id 'net.minecraftforge.gradle.mcp' version '[6.0.22,6.2)' apply false
     id 'net.minecraftforge.gradlejarsigner' version '1.0.4'
     id 'org.barfuin.gradle.taskinfo' version '2.1.0'
 }
@@ -16,7 +16,8 @@ plugins {
 Util.init() //Init all our extension methods!
 
 ext {
-    VERSION = gitversion.getMCTagOffsetBranch(MC_VERSION)
+    GIT_INFO = gradleutils.gitInfo
+    VERSION = gradleutils.getFilteredMCTagOffsetBranchVersion(true, '[0-9]', MC_VERSION)
     FORGE_VERSION = VERSION.substring(MC_VERSION.length() + 1)
 }
 

buildSrc/build.gradle

@@ -4,10 +4,9 @@ repositories {
 }
 
 dependencies {
-    implementation 'org.ow2.asm:asm:9.8'
-    implementation 'org.ow2.asm:asm-tree:9.8'
-    implementation 'net.minecraftforge:srgutils:0.5.10'
-    implementation 'net.minecraftforge:JarJarMetadata:0.3.27'
+    implementation 'org.ow2.asm:asm:9.9.1'
+    implementation 'org.ow2.asm:asm-tree:9.9.1'
+    implementation 'net.minecraftforge:srgutils:0.6.2'
     implementation 'commons-io:commons-io:2.13.0'
     implementation 'com.google.code.gson:gson:2.10.1'
     implementation 'org.eclipse.jgit:org.eclipse.jgit:6.7.0.202309050840-r'

buildSrc/src/main/groovy/net/minecraftforge/forge/tasks/BundleList.groovy

@@ -62,10 +62,6 @@ abstract class BundleList extends DefaultTask {
                 def (group, name, other) = artifact.split(':', 3)
                 //println("Group: $group Name: $name")
                 def key = "$group:$name"
-                if (other.indexOf(':') != -1){
-                    key += ':' + other.split(':', 2)[1]
-                    //println("\tKey: $key")
-                }
                 if (!entries.containsKey(key))
                     entries.put(key, line)
             }

buildSrc/src/main/groovy/net/minecraftforge/forge/tasks/JarJarMetadataOptions.java

@@ -1,415 +0,0 @@
-/*
- * Copyright (c) Forge Development LLC and contributors
- * SPDX-License-Identifier: LGPL-2.1-only
- */
-
-package net.minecraftforge.forge.tasks;
-
-import com.google.common.reflect.TypeToken;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import net.minecraftforge.jarjar.metadata.ContainedJarIdentifier;
-import net.minecraftforge.jarjar.metadata.ContainedJarMetadata;
-import net.minecraftforge.jarjar.metadata.ContainedVersion;
-import net.minecraftforge.jarjar.metadata.Metadata;
-import net.minecraftforge.jarjar.metadata.MetadataIOHandler;
-import net.minecraftforge.jarjar.metadata.json.ArtifactVersionSerializer;
-import net.minecraftforge.jarjar.metadata.json.ContainedJarIdentifierSerializer;
-import net.minecraftforge.jarjar.metadata.json.ContainedJarMetadataSerializer;
-import net.minecraftforge.jarjar.metadata.json.ContainedVersionSerializer;
-import net.minecraftforge.jarjar.metadata.json.MetadataSerializer;
-import net.minecraftforge.jarjar.metadata.json.VersionRangeSerializer;
-import org.apache.maven.artifact.versioning.ArtifactVersion;
-import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
-import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
-import org.apache.maven.artifact.versioning.VersionRange;
-import org.codehaus.groovy.runtime.InvokerHelper;
-import org.gradle.api.Action;
-import org.gradle.api.DefaultTask;
-import org.gradle.api.artifacts.ConfigurationContainer;
-import org.gradle.api.artifacts.Dependency;
-import org.gradle.api.artifacts.ExternalModuleDependency;
-import org.gradle.api.artifacts.FileCollectionDependency;
-import org.gradle.api.artifacts.MinimalExternalModuleDependency;
-import org.gradle.api.artifacts.ModuleDependency;
-import org.gradle.api.artifacts.ModuleIdentifier;
-import org.gradle.api.artifacts.ModuleVersionIdentifier;
-import org.gradle.api.artifacts.ResolvedArtifact;
-import org.gradle.api.file.ProjectLayout;
-import org.gradle.api.file.RegularFileProperty;
-import org.gradle.api.provider.Provider;
-import org.gradle.api.provider.SetProperty;
-import org.gradle.api.tasks.Input;
-import org.gradle.api.tasks.OutputFile;
-import org.gradle.api.tasks.TaskAction;
-
-import javax.inject.Inject;
-import java.io.File;
-import java.io.IOException;
-import java.io.Serial;
-import java.io.Serializable;
-import java.nio.file.Files;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Objects;
-import java.util.Set;
-import java.util.zip.ZipFile;
-
-// TODO SUPER SUPER SUPER UGLY, CLEAN UP IN FORGEDEV 7
-@Deprecated(forRemoval = true) // Will be moved to JarJar plugin in ForgeDev 7
-public abstract class JarJarMetadataOptions extends DefaultTask {
-    private static final Gson GSON = new GsonBuilder()
-        .registerTypeAdapter(VersionRange.class, new VersionRangeSerializer())
-        .registerTypeAdapter(ArtifactVersion.class, new ArtifactVersionSerializer())
-        .registerTypeAdapter(DefaultArtifactVersion.class, new ArtifactVersionSerializer())
-        .registerTypeAdapter(ContainedJarIdentifier.class, new ContainedJarIdentifierSerializer())
-        .registerTypeAdapter(ContainedJarMetadata.class, new ContainedJarMetadataSerializer())
-        .registerTypeAdapter(ContainedVersion.class, new ContainedVersionSerializer())
-        .registerTypeAdapter(Metadata.class, new MetadataSerializer())
-        .setPrettyPrinting()
-        .create();
-
-    protected abstract @Input SetProperty<ResolvedDependencyInfoImpl> getResolvedDependencies();
-
-    protected abstract @OutputFile RegularFileProperty getMetadataFile();
-
-    protected abstract @Inject ProjectLayout getLayout();
-
-    // NOTE: I'm not adding a non-provider version. please just use the version catalog entries for now.
-    public void add(Provider<MinimalExternalModuleDependency> dependency, Action<? super ResolvedDependencyInfo> action) {
-        this.getResolvedDependencies().add(dependency.map(d -> {
-            var ret = ResolvedDependencyInfoImpl.from(this.getProject().getConfigurations(), d);
-            action.execute(ret);
-            return ret;
-        }));
-    }
-
-    @Inject
-    public JarJarMetadataOptions() {
-        this.getMetadataFile().convention(this.getLayout().getBuildDirectory().file(this.getName() + "/options.json"));
-    }
-
-    @TaskAction
-    protected void exec() {
-        record ForgeLocaterOptions(String resource, String layer, String id, List<ContainedJarMetadata> deps, ContainedJarMetadata meta, boolean nested) { }
-
-        var resolved = this.getResolvedDependencies().get();
-        var jars = new ArrayList<ForgeLocaterOptions>(resolved.size());
-        for (var dependency : resolved) {
-            var deps = new ArrayList<ContainedJarMetadata>();
-            try (var zip = new ZipFile(dependency.artifact)) {
-                var entry = zip.getEntry("META-INF/jarjar/metadata.json");
-                if (entry != null) {
-                    try (var stream = zip.getInputStream(entry)) {
-                        var meta = MetadataIOHandler.fromStream(stream).orElse(null);
-                        if (meta == null)
-                            throw new IllegalStateException("Corrupt metadata.json in " + dependency.artifact.getAbsolutePath());
-                        for (var dep : meta.jars())
-                            deps.add(new ContainedJarMetadata(dep.identifier(), dep.version(), "", dep.isObfuscated()));
-                    }
-                }
-            } catch (IOException e) {
-                throw new RuntimeException(e);
-            }
-            jars.add(new ForgeLocaterOptions(
-                dependency.resource,
-                dependency.layer,
-                dependency.identifier,
-                deps,
-                new ContainedJarMetadata(
-                    new ContainedJarIdentifier(validateGroup(dependency), dependency.module.getName()),
-                    new ContainedVersion(null, parseVersion(dependency)),
-                    Objects.requireNonNull(dependency.path, "Dependency path is unspecified: " + dependency.asString),
-                    false
-                ),
-                dependency.nested
-            ));
-        }
-
-        try {
-            record Meta(List<ForgeLocaterOptions> options){}
-
-            Files.writeString(
-                this.getMetadataFile().getAsFile().get().toPath(),
-                GSON.toJson(new Meta(jars), Meta.class)
-            );
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    private String validateGroup(ResolvedDependencyInfoImpl dependency) {
-        try {
-            return Objects.requireNonNull(dependency.module.getGroup());
-        } catch (NullPointerException e) {
-            throw new IllegalArgumentException("Module dependency has no group: " + dependency.asString, e);
-        }
-    }
-
-    private ArtifactVersion parseVersion(ResolvedDependencyInfoImpl resolved) {
-        try {
-            return VersionRange.createFromVersionSpec(Objects.requireNonNull(resolved.version)).getRecommendedVersion();
-        } catch (InvalidVersionSpecificationException e) {
-            throw new IllegalArgumentException("Version is invalid for: " + resolved.asString, e);
-        } catch (NullPointerException e) {
-            throw new IllegalArgumentException("Version is unspecified for: " + resolved.asString, e);
-        }
-    }
-
-    private VersionRange parseVersionRange(ResolvedDependencyInfoImpl dependency) {
-        if (dependency.hasManuallySpecifiedRange) {
-            try {
-                return VersionRange.createFromVersionSpec(dependency.versionRange);
-            } catch (InvalidVersionSpecificationException e) {
-                throw new IllegalArgumentException("Version is invalid for: " + dependency.asString, e);
-            }
-        } else {
-            try {
-                return VersionRange.createFromVersionSpec("[%s,)".formatted(Objects.requireNonNull(dependency.versionRange)));
-            } catch (InvalidVersionSpecificationException e) {
-                throw new IllegalArgumentException("Version range is invalid for: " + dependency.asString, e);
-            } catch (NullPointerException e) {
-                throw new IllegalArgumentException("Version is unspecified for: " + dependency.asString, e);
-            }
-        }
-    }
-
-    public interface ResolvedDependencyInfo {
-        void containedJarMetadata(Action<? super ContainedJarMetadataInfo> action);
-
-        void setResource(String resource);
-
-        void setLayer(String layer);
-
-        void setId(String identifier);
-
-        void setNested(boolean nested);
-
-        interface ContainedJarMetadataInfo {
-            void setGroup(String group);
-
-            void setName(String name);
-
-            void setPath(String version);
-        }
-    }
-
-    static final class ResolvedDependencyInfoImpl implements ResolvedDependencyInfo, ResolvedDependencyInfo.ContainedJarMetadataInfo, Serializable {
-        private static final @Serial long serialVersionUID = -7577318115877822993L;
-
-        final MinimalModuleVersionIdentifier module;
-        final String version;
-        String versionRange;
-        boolean hasManuallySpecifiedRange;
-        boolean nested;
-        final File artifact;
-        String path;
-        String resource;
-        String layer;
-        String identifier;
-        final String asString;
-
-        public ResolvedDependencyInfoImpl(MinimalModuleVersionIdentifier module, String version, File artifact, String asString) {
-            this.module = module;
-            this.version = version;
-            this.artifact = artifact;
-            this.asString = asString;
-        }
-
-        @Override
-        public void containedJarMetadata(Action<? super ContainedJarMetadataInfo> action) {
-            action.execute(this);
-        }
-
-        @Override
-        public void setGroup(String group) {
-            this.module.group = group;
-        }
-
-        @Override
-        public void setName(String name) {
-            this.module.name = name;
-        }
-
-        @Override
-        public void setPath(String path) {
-            this.path = path;
-        }
-
-        @Override
-        public void setResource(String resource) {
-            this.resource = resource;
-        }
-
-        @Override
-        public void setLayer(String layer) {
-            this.layer = layer;
-        }
-
-        @Override
-        public void setId(String identifier) {
-            this.identifier = identifier;
-        }
-
-        @Override
-		public void setNested(boolean nested) {
-			this.nested = nested;
-		}
-
-        static Set<File> getFiles(Set<ResolvedDependencyInfoImpl> resolvedDependencies) {
-            var ret = new HashSet<File>(resolvedDependencies.size());
-            for (var dependency : resolvedDependencies) {
-                ret.add(dependency.artifact);
-            }
-            return ret;
-        }
-
-        static ResolvedDependencyInfoImpl from(ConfigurationContainer configurations, Dependency dependency) {
-            var group = dependency.getGroup();
-            var name = dependency.getName();
-            var version = dependency.getVersion();
-
-            if (dependency instanceof FileCollectionDependency filesDependency) {
-                File artifact;
-                try {
-                    artifact = filesDependency.getFiles().getSingleFile();
-                } catch (IllegalStateException e) {
-                    // TODO fileCollectionDependencyIsNotSingleFile
-                    throw e;
-                }
-
-                return new ResolvedDependencyInfoImpl(
-                    new MinimalModuleVersionIdentifier(group, name, version),
-                    version,
-                    artifact,
-                    filesDependency.toString()
-                );
-            } else if (dependency instanceof ModuleDependency moduleDependency) {
-                moduleDependency = moduleDependency.copy();
-                if (moduleDependency instanceof ExternalModuleDependency externalModuleDependency) {
-                    externalModuleDependency.version(v -> v.strictly(version.toString()));
-                }
-
-                var detachedConfiguration = configurations.detachedConfiguration(moduleDependency);
-                detachedConfiguration.setTransitive(false);
-
-                ResolvedDependencyInfoImpl ret = null;
-                for (var artifact : detachedConfiguration.getResolvedConfiguration().getFirstLevelModuleDependencies().iterator().next().getModuleArtifacts()) {
-                    var fileName = getFileName(artifact);
-                    if (!fileName.endsWith(".jar"))
-                        continue;
-
-                    if (ret != null)
-                        throw new IllegalArgumentException("Module dependency has too many Jar artifacts: " + moduleDependency);
-
-                    ret = new ResolvedDependencyInfoImpl(
-                        new MinimalModuleVersionIdentifier(group, name, artifact.getModuleVersion().getId().getVersion()),
-                        version,
-                        artifact.getFile(),
-                        moduleDependency.toString()
-                    );
-                }
-                if (ret == null)
-                    throw new IllegalArgumentException("Module dependency has no Jar artifacts: " + moduleDependency);
-
-                return ret;
-            } else {
-                throw new IllegalArgumentException("Unsupported dependency type: " + dependency.getClass().getName() + " -- " + dependency);
-            }
-        }
-
-        private static String getFileName(ResolvedArtifact artifact) {
-            try {
-                return InvokerHelper.getProperty(artifact.getId(), "fileName").toString();
-            } catch (Throwable e) {
-                // NOTE: Why not just use this to begin with?
-                // ComponentArtifactIdentifier can have a getFileName() method, which doesn't necessarily resolve the file itself.
-                // This allows us to get the name of the file to be used without asking Gradle to download the file.
-                // So, if a file is not a JAR file, we can check the name without actually downloading it.
-                return artifact.getFile().getName();
-            }
-        }
-
-        @Override
-        public boolean equals(Object obj) {
-            if (obj == this) return true;
-            if (obj == null || obj.getClass() != this.getClass()) return false;
-            var that = (ResolvedDependencyInfoImpl) obj;
-            return Objects.equals(this.module, that.module) &&
-                Objects.equals(this.version, that.version) &&
-                Objects.equals(this.versionRange, that.versionRange) &&
-                Objects.equals(this.artifact, that.artifact);
-        }
-
-        @Override
-        public int hashCode() {
-            return Objects.hash(module, version, versionRange, artifact);
-        }
-
-        @Override
-        public String toString() {
-            return "ResolvedDependencyInfo[" +
-                "module=" + module + ", " +
-                "fixedVersion=" + version + ", " +
-                "versionRange=" + versionRange + ", " +
-                "artifact=" + artifact + ']';
-        }
-
-        static final class MinimalModuleVersionIdentifier implements ModuleIdentifier, ModuleVersionIdentifier {
-            private static final @Serial long serialVersionUID = -955346236759069739L;
-
-            private String group;
-            private String name;
-            private final String version;
-
-            @Inject
-            public MinimalModuleVersionIdentifier(String group, String name, String version) {
-                this.group = group;
-                this.name = name;
-                this.version = version;
-            }
-
-            @Override
-            public ModuleIdentifier getModule() {
-                return this;
-            }
-
-            @Override
-            public String getGroup() {
-                return this.group;
-            }
-
-            @Override
-            public String getName() {
-                return this.name;
-            }
-
-            @Override
-            public String getVersion() {
-                return this.version;
-            }
-
-            @Override
-            public boolean equals(Object obj) {
-                return this == obj || obj instanceof MinimalModuleVersionIdentifier o
-                    && Objects.equals(this.group, o.group)
-                    && Objects.equals(this.name, o.name)
-                    && Objects.equals(this.version, o.version);
-            }
-
-            @Override
-            public int hashCode() {
-                return Objects.hash(group, name, version);
-            }
-
-            @Override
-            public String toString() {
-                return "MinimalModuleVersionIdentifier[" +
-                    "group=" + group + ", " +
-                    "name=" + name + ", " +
-                    "version=" + version + ']';
-            }
-        }
-    }
-}

buildSrc/src/main/groovy/net/minecraftforge/forge/tasks/checks/CheckATs.groovy

@@ -289,7 +289,6 @@ class ATParser {
         final String comment = idx === -1 ? null : line.substring(idx)
         if (idx !== -1) line = line.substring(0, idx - 1)
         final data = (line.trim() + '     ').split(' ', -1)
-    	data[1] = data[1].replaceAll('/', '.') // Convert to Source names, internal names are fine by spec, but not supported by old AST based AT implementations.
         new Entry(data[0], data[1], data[2], comment)
     }
 

build_forge.gradle

@@ -71,7 +71,7 @@ sourceSets {
     }
 }
 
-final String SPEC_VERSION = gitversion.info.tag
+final String SPEC_VERSION = gradleutils.gitInfo.tag
 
 // The new versioning sceme is <MCVersion>-<ForgeMC>.<RB>.<CommitsSinceRB>
 // ForgeMC is a unique identifier for every MC version we have supported.
@@ -91,7 +91,7 @@ final String MAVEN_PATH = ext.MAVEN_PATH
 final String BINPATCH_TOOL = 'net.minecraftforge:binarypatcher:1.2.0:fatjar'
 final String INSTALLER_TOOLS = 'net.minecraftforge:installertools:1.4.3'
 final String FART = 'net.minecraftforge:ForgeAutoRenamingTool:1.0.6'
-final String S2S_TOOL = 'net.minecraftforge:Srg2Source:8.2.0:fatjar'
+final String S2S_TOOL = 'net.minecraftforge:Srg2Source:8.1.1:fatjar'
 
 configurations {
     // Don't pull all libraries, if we're missing something, add it to the installer list so the installer knows to download it.
@@ -112,7 +112,6 @@ dependencies {
     // And this is only needed because custom file systems are REQUIRED to be on the boot classloader.
     // This has ASM/BootStrap/Unsafe all because I haven't gotten around to moving UnionFileSystem out to its own project.
     bootstrap(libs.jarjar.fs)     // JarInJar file system
-    bootstrap(libs.roimfs)        // JarInJar File System - FileSystems need to be on boot loader.
     bootstrap(libs.bundles.jimfs) // In memory file system used for ForgeDev launches
     bootstrap(libs.securemodules) // Has Union file system in it
     bootstrap(libs.unsafe)        // Needed by securemodules
@@ -124,18 +123,17 @@ dependencies {
     installer(libs.bootstrap.api) // Needed by securemodules
     installer(libs.accesstransformers)
     installer(libs.eventbus)
-    installer(libs.jspecify) // Dep of EventBus
+    installer(libs.typetools) // Dep of EventBus
     installer(libs.forgespi)
-    installer(libs.coremods.api)
+    installer(libs.coremods)
+    installer(libs.nashorn) // Dep of Coremods
     installer(libs.modlauncher)
     installer(libs.mergetool.api)
     installer(libs.bundles.night.config)
     installer(libs.maven.artifact)
     installer(libs.bundles.terminalconsoleappender)
     installer(libs.mixin)
-    installer(libs.mixinextras.forge)
     installer(libs.bundles.jarjar)
-    installer(libs.roimfs)
 
     installer(project(':fmlcore'))
     installer(project(':fmlloader'))
@@ -143,25 +141,16 @@ dependencies {
     installer(project(':javafmllanguage'))
     installer(project(':lowcodelanguage'))
     installer(project(':mclanguage'))
-    installer(project(':forge-transformers'))
 
     installerextra("${MCP_ARTIFACT.group}:${MCP_ARTIFACT.name}:${MCP_ARTIFACT.version}:srg2off")
 
     runtimeOnly(libs.bootstrap)
     runtimeOnly(libs.bootstrap.dev)
-
-    annotationProcessor(libs.eventbus.validator)
 }
 
 tasks.named('extractRangeMap').configure {
     tool = S2S_TOOL
 }
-tasks.named('applyRangeMap').configure {
-	tool = S2S_TOOL
-}
-tasks.named('applyRangeMapBase').configure {
-	tool = S2S_TOOL
-}
 
 patcher {
     excs.from file("$rootDir/src/main/resources/forge.exc")
@@ -176,7 +165,7 @@ patcher {
 
     runs {
         forge_client {
-            property 'eventbus.api.strictRuntimeChecks', 'true'
+            property 'eventbus.checkTypesOnDispatch', 'true'
             property 'org.lwjgl.system.SharedLibraryExtractDirectory', 'lwjgl_dll'
 
             args '--launchTarget', 'forge_dev_client',
@@ -306,11 +295,6 @@ tasks.userdevConfig.configure {
         libraries.add(dep)
     }
 
-    // TODO [ForgeDev][UserDev] Split API/Runtime elements in userdev config
-    //      so we don't gotta keep making exceptions for MixinExtras
-    addCompileDependency(libs.mixinextras.common)
-    addAnnotationProcessorDependency(libs.mixinextras.common)
-
     inject = '' // We don't have a userdev sourceset anymore. Empty as a gradle workaround...
     runs {
         client {
@@ -427,7 +411,7 @@ tasks.register('extractInheritance', ExtractInheritance) {
 }
 tasks.register("findFinalizeSpawnTargets", BytecodePredicateFinder) {
     jar = createClientOfficial.output
-    output = rootProject.file('forge-transformers/src/main/resources/coremods/finalize_spawn_targets.json')
+    output = rootProject.file('src/main/resources/coremods/finalize_spawn_targets.json')
     predicate = {
         parent, node, insn ->
             return 'net/minecraft/world/level/BaseSpawner' != parent.name // Ignore this class as we special case it.
@@ -971,8 +955,7 @@ tasks.register('mdkZip', Zip) {
             MAPPING_CHANNEL: MAPPING_CHANNEL,
             MAPPING_VERSION: MAPPING_VERSION,
             FORGE_SPEC_VERSION: SPEC_VERSION.split("\\.")[0],
-            MC_NEXT_VERSION: MC_NEXT_VERSION,
-            EVENTBUS_VERSION: libs.versions.eventbus.get()
+            MC_NEXT_VERSION: MC_NEXT_VERSION
         ])
         rename 'gitignore\\.txt', '.gitignore'
         rename 'gitattributes\\.txt', '.gitattributes'
@@ -1019,7 +1002,7 @@ if (project.hasProperty('UPDATE_MAPPINGS')) {
 
 tasks.named('javadoc', Javadoc).configure {
     description 'Generates the combined javadocs for the FML projects and the main Forge project'
-    var includedProjects = [ ':fmlcore', ':fmlloader', ':javafmllanguage', ':mclanguage', ':forge-transformers' ]
+    var includedProjects = [ ':fmlcore', ':fmlloader', ':javafmllanguage', ':mclanguage' ]
     source includedProjects.collect { project(it).sourceSets.main.allJava }
     classpath = classpath + files(includedProjects.collect { project(it).sourceSets.main.compileClasspath })
 

build_shared.gradle

@@ -38,10 +38,6 @@ tasks.register('generateResources') {
     dependsOn('writeManifest')
 }
 
-tasks.named('processResources') {
-    dependsOn(generateResources)
-}
-
 // Make sure out manifests get written before compiling the code, IDEA calls this task if you tell it to use the gradle build.
 tasks.withType(JavaCompile).configureEach {
     dependsOn 'generateResources'

docs/README.md

@@ -2,8 +2,8 @@
 
 MinecraftForge
 =============
-[![Stable Release](https://img.shields.io/badge/dynamic/json?url=https://files.minecraftforge.net/net/minecraftforge/forge/promotions_slim.json&label=Stable&prefix=1.21.11-&query=$.promos["1.21.11-recommended"]&color=brightgreen&logo=data:image/svg+xml;base64,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)][Download]
-[![Latest Release](https://img.shields.io/badge/dynamic/json?url=https://files.minecraftforge.net/net/minecraftforge/forge/promotions_slim.json&label=Latest&prefix=1.21.11-&query=$.promos["1.21.11-latest"]&color=blue&logo=data:image/svg+xml;base64,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
+[![Stable Release](https://img.shields.io/badge/dynamic/json?url=https://files.minecraftforge.net/net/minecraftforge/forge/promotions_slim.json&label=Stable&prefix=1.21.5-&query=$.promos["1.21.5-recommended"]&color=brightgreen&logo=data:image/svg+xml;base64,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)][Download]
+[![Latest Release](https://img.shields.io/badge/dynamic/json?url=https://files.minecraftforge.net/net/minecraftforge/forge/promotions_slim.json&label=Latest&prefix=1.21.5-&query=$.promos["1.21.5-latest"]&color=blue&logo=data:image/svg+xml;base64,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
 )][Download] [![Discord](https://img.shields.io/discord/313125603924639766.svg?color=%237289da&label=Discord&logo=discord&logoColor=%237289da)][Discord] [![Support](https://img.shields.io/badge/Patreon-Support-orange.svg?logo=Patreon)][Patreon]
 
 Forge is a free, open-source modding API all of your favourite mods use!

fmlcore/build.gradle

@@ -10,10 +10,9 @@ plugins {
 apply from: rootProject.file('build_shared.gradle')
 
 dependencies {
-    compileOnly(libs.jetbrains.annotations)
+    compileOnly(libs.nulls)
 
     api(libs.eventbus)
-    annotationProcessor(libs.eventbus.validator)
 
     implementation(project(':fmlloader'))
     implementation(libs.commons.io)

fmlcore/src/main/java/net/minecraftforge/fml/Bindings.java

@@ -5,7 +5,7 @@
 
 package net.minecraftforge.fml;
 
-import net.minecraftforge.eventbus.api.bus.BusGroup;
+import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.fml.config.IConfigEvent;
 import net.minecraftforge.fml.loading.FMLLoader;
 
@@ -29,7 +29,7 @@ public class Bindings {
     /**
      * @return A supplier of net.minecraftforge.common.MinecraftForge#EVENT_BUS
      */
-    public static Supplier<BusGroup> getForgeBus() {
+    public static Supplier<IEventBus> getForgeBus() {
         return PROVIDER.getForgeBusSupplier();
     }
 

fmlcore/src/main/java/net/minecraftforge/fml/IBindingsProvider.java

@@ -5,13 +5,13 @@
 
 package net.minecraftforge.fml;
 
-import net.minecraftforge.eventbus.api.bus.BusGroup;
+import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.fml.config.IConfigEvent;
 
 import java.util.function.Supplier;
 
 public interface IBindingsProvider {
-    Supplier<BusGroup> getForgeBusSupplier();
+    Supplier<IEventBus> getForgeBusSupplier();
     Supplier<I18NParser> getMessageParser();
     Supplier<IConfigEvent.ConfigConfig> getConfigConfiguration();
 }

fmlcore/src/main/java/net/minecraftforge/fml/IModLoadingState.java

@@ -5,6 +5,8 @@
 
 package net.minecraftforge.fml;
 
+import net.minecraftforge.eventbus.api.Event;
+import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.fml.loading.progress.ProgressMeter;
 
 import java.util.Optional;
@@ -59,13 +61,14 @@ public interface IModLoadingState {
     /**
      * Builds the transition task for this state with a blank pre-sync and post-sync task.
      *
+     * @param <T>              a type of event fired on the mod-specific event bus
      * @param syncExecutor     a synchronous executor
      * @param parallelExecutor a parallel executor
      * @param progressBar      a progress meter for tracking progress
      * @return a transition task for this state
      * @see #buildTransition(Executor, Executor, ProgressMeter, Function, Function)
      */
-    default Optional<CompletableFuture<Void>> buildTransition(
+    default <T extends Event & IModBusEvent> Optional<CompletableFuture<Void>> buildTransition(
         final Executor syncExecutor,
         final Executor parallelExecutor,
         final ProgressMeter progressBar
@@ -80,6 +83,7 @@ public interface IModLoadingState {
      * Builds the transition task for this state. The pre-sync and post-sync task functions allow the transition builder
      * to run these tasks on the same executor as the actual event dispatch and pre/post hooks.
      *
+     * @param <T>              a type of event fired on the mod-specific event bus
      * @param syncExecutor     a synchronous executor
      * @param parallelExecutor a parallel executor
      * @param progressBar      a progress meter for tracking progress
@@ -87,6 +91,7 @@ public interface IModLoadingState {
      * @param postSyncTask     a function which returns a task to run after event post-dispatch hook
      * @return a transition task for this state
      */
+    <T extends Event & IModBusEvent>
     Optional<CompletableFuture<Void>> buildTransition(final Executor syncExecutor,
                                                       final Executor parallelExecutor,
                                                       final ProgressMeter progressBar,

fmlcore/src/main/java/net/minecraftforge/fml/IModStateTransition.java

@@ -5,6 +5,7 @@
 
 package net.minecraftforge.fml;
 
+import net.minecraftforge.eventbus.api.Event;
 import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.fml.loading.progress.ProgressMeter;
 
@@ -19,7 +20,7 @@ import org.jetbrains.annotations.Nullable;
 
 public interface IModStateTransition {
     /** Magic value to allow me to optimize the futures list by ignoring the default value without making old methods nullable. */
-    BiFunction<Executor, ? extends EventGenerator<?>, CompletableFuture<Void>> NULL_HOOK = (e, g) -> CompletableFuture.completedFuture(null);
+    public static final BiFunction<Executor, ? extends EventGenerator<?>, CompletableFuture<Void>> NULL_HOOK = (e, g) -> CompletableFuture.completedFuture(null);
 
     static IModStateTransition buildNoopTransition() {
         return ModStateTransitionHelper.NOOP;
@@ -50,7 +51,7 @@ public interface IModStateTransition {
     }
 
     @Nullable
-    default <T extends IModBusEvent> EventGenerator<T> eventFunction() {
+    default <T extends Event & IModBusEvent> EventGenerator<T> eventFunction() {
         return null;
     }
 
@@ -73,8 +74,8 @@ public interface IModStateTransition {
     @Deprecated(since = "1.21.3", forRemoval = true)
     default BiFunction<Executor, ? extends EventGenerator<?>, CompletableFuture<Void>> postDispatchHook() { return NULL_HOOK; }
 
-    interface EventGenerator<T extends IModBusEvent> extends Function<ModContainer, T> {
-        static <FN extends IModBusEvent> EventGenerator<FN> fromFunction(Function<ModContainer, FN> fn) {
+    interface EventGenerator<T extends Event & IModBusEvent> extends Function<ModContainer, T> {
+        static <FN extends Event & IModBusEvent> EventGenerator<FN> fromFunction(Function<ModContainer, FN> fn) {
             return fn::apply;
         }
     }

fmlcore/src/main/java/net/minecraftforge/fml/ModContainer.java

@@ -5,7 +5,7 @@
 
 package net.minecraftforge.fml;
 
-import net.minecraftforge.eventbus.api.bus.BusGroup;
+import net.minecraftforge.eventbus.api.Event;
 import net.minecraftforge.fml.config.IConfigEvent;
 import net.minecraftforge.fml.config.ModConfig;
 import net.minecraftforge.fml.event.IModBusEvent;
@@ -158,17 +158,9 @@ public abstract class ModContainer {
      */
     public abstract Object getMod();
 
-    /**
-     * @return the mod bus group for this specific mod, or null if there is none.
-     *         Leave null if you use {@link BusGroup#DEFAULT} for your mod lifecycle events.
-     */
-    public BusGroup getModBusGroup() {
-        return null;
-    }
-
     /**
      * Accept an arbitrary event for processing by the mod. Probably posted to an event bus in the lower level container.
      * @param e Event to accept
      */
-    protected <T extends IModBusEvent> void acceptEvent(T e) {}
+    protected <T extends Event & IModBusEvent> void acceptEvent(T e) {}
 }

fmlcore/src/main/java/net/minecraftforge/fml/ModList.java

@@ -41,14 +41,14 @@ public class ModList {
     private List<ModContainer> sortedContainers;
 
     private ModList(final List<ModFile> modFiles, final List<ModInfo> sortedList) {
-        var modFileInfos = this.modFiles = modFiles.stream().map(ModFile::getModFileInfo).toList();
+        this.modFiles = modFiles.stream().map(ModFile::getModFileInfo).toList();
         this.sortedList = sortedList.stream().map(IModInfo.class::cast).toList();
         var byId = new HashMap<String, IModFileInfo>();
-        for (var file : modFileInfos) {
+        for (var file : this.modFiles) {
             for (var mod : file.getMods())
                 byId.put(mod.getModId(), mod.getOwningFile());
         }
-        this.fileById = Map.copyOf(byId);
+        this.fileById = Collections.unmodifiableMap(byId);
         CrashReportCallables.registerCrashCallable("Mod List", this::crashReport);
     }
 
@@ -67,7 +67,7 @@ public class ModList {
     }
 
     private String crashReport() {
-        return "\n" + applyForEachModFile(this::fileToLine).collect(Collectors.joining("\n\t\t", "\t\t", ""));
+        return "\n"+applyForEachModFile(this::fileToLine).collect(Collectors.joining("\n\t\t", "\t\t", ""));
     }
 
     public static ModList of(List<ModFile> modFiles, List<ModInfo> sortedList) {
@@ -126,9 +126,10 @@ public class ModList {
                     map(IModFileInfo::getFile).
                     distinct().
                     map(IModFile::getScanResult).
-                    toList();
+                    collect(Collectors.toList());
         }
         return modFileScanData;
+
     }
 
     public void forEachModFile(Consumer<IModFile> fileConsumer) {

fmlcore/src/main/java/net/minecraftforge/fml/ModLoader.java

@@ -6,7 +6,7 @@
 package net.minecraftforge.fml;
 
 import com.google.common.collect.ImmutableList;
-import net.minecraftforge.eventbus.api.bus.BusGroup;
+import net.minecraftforge.eventbus.api.Event;
 import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.fml.loading.FMLEnvironment;
 import net.minecraftforge.fml.loading.FMLLoader;
@@ -85,20 +85,20 @@ public class ModLoader {
     private ModList modList;
 
     private ModLoader() {
-        var loadingModList = this.loadingModList = FMLLoader.getLoadingModList();
-        var loadingExceptions = this.loadingExceptions = loadingModList.getErrors().stream()
+        this.loadingModList = FMLLoader.getLoadingModList();
+        this.loadingExceptions = this.loadingModList.getErrors().stream()
                 .flatMap(ModLoadingException::fromEarlyException)
-                .collect(Collectors.toList());
-        this.loadingWarnings = loadingModList.getBrokenFiles().stream()
+                .toList();
+        this.loadingWarnings = this.loadingModList.getBrokenFiles().stream()
                 .map(file -> new ModLoadingWarning(null, ModLoadingStage.VALIDATE, InvalidModIdentifier.identifyJarProblem(file.getFilePath()).orElse("fml.modloading.brokenfile"), file.getFileName()))
                 .collect(Collectors.toList());
-        if (loadingExceptions.isEmpty()) {
+        if (this.loadingExceptions.isEmpty()) {
             this.erroredModInfos = Collections.emptySet();
         } else {
             this.erroredModInfos = Collections.newSetFromMap(new IdentityHashMap<>());
-            this.erroredModInfos.addAll(loadingExceptions.stream().map(ModLoadingException::getModInfo).toList());
+            this.erroredModInfos.addAll(this.loadingExceptions.stream().map(ModLoadingException::getModInfo).toList());
         }
-        loadingModList.getModFiles().stream()
+        this.loadingModList.getModFiles().stream()
                 .filter(ModFileInfo::missingLicense)
                 .filter(modFileInfo -> modFileInfo.getMods().stream().noneMatch(this.erroredModInfos::contains)) //Ignore files where any other mod already encountered an error
                 .map(modFileInfo -> new ModLoadingException(null, ModLoadingStage.VALIDATE, "fml.modloading.missinglicense", null, modFileInfo.getFile()))
@@ -113,16 +113,16 @@ public class ModLoader {
 
     private static String computeLanguageList() {
         return "\n" + FMLLoader.getLanguageLoadingProvider()
-                .applyForEach(lp -> lp.name() + '@' + lp.getClass().getPackage().getImplementationVersion())
+                .applyForEach(lp -> lp.name() + "@" + lp.getClass().getPackage().getImplementationVersion())
                 .collect(Collectors.joining("\n\t\t", "\t\t", ""));
     }
 
     private static String computeModLauncherServiceList() {
         final List<Map<String, String>> mods = FMLLoader.modLauncherModList();
-        return "\n" + mods.stream().map(mod -> mod.getOrDefault("file","nofile") +
-                ' ' + mod.getOrDefault("name", "missing") +
-                ' ' + mod.getOrDefault("type","NOTYPE") +
-                ' ' + mod.getOrDefault("description", "")).
+        return "\n"+mods.stream().map(mod->mod.getOrDefault("file","nofile")+
+                " "+mod.getOrDefault("name", "missing")+
+                " "+mod.getOrDefault("type","NOTYPE")+
+                " "+mod.getOrDefault("description", "")).
                 collect(Collectors.joining("\n\t\t","\t\t",""));
     }
 
@@ -155,13 +155,11 @@ public class ModLoader {
             loadingStateValid = false;
             throw new LoadingFailedException(loadingExceptions);
         }
-        var failedBounds = new ArrayList<ForgeFeature.Bound>();
-        for (var mod : loadingModList.getMods()) {
-            for (var feature : mod.getForgeFeatures()) {
-                if (!ForgeFeature.testFeature(FMLEnvironment.dist, feature))
-                    failedBounds.add(feature);
-            }
-        }
+        List<? extends ForgeFeature.Bound> failedBounds = loadingModList.getMods().stream()
+                .map(ModInfo::getForgeFeatures)
+                .flatMap(List::stream)
+                .filter(bound -> !ForgeFeature.testFeature(FMLEnvironment.dist, bound))
+                .toList();
 
         if (!failedBounds.isEmpty()) {
             LOGGER.fatal(CORE, "Failed to validate feature bounds for mods: {}", failedBounds);
@@ -233,19 +231,7 @@ public class ModLoader {
         for (IModLoadingState mls : stateList) {
             dispatchAndHandleError(mls, syncExecutor, parallelExecutor, periodicTask, progress);
         }
-
-        var modBusGroups = Set.of(
-                modList.getLoadedMods().stream()
-                        .map(ModContainer::getModBusGroup)
-                        .filter(Objects::nonNull)
-                        .toArray(BusGroup[]::new)
-        );
-        for (var modBusGroup : modBusGroups) {
-            parallelExecutor.execute(modBusGroup::trim);
-        }
-        parallelExecutor.execute(BusGroup.DEFAULT::trim);
-
-        statusConsumer.accept("Mod loading complete - %d mods loaded".formatted(this.modList.size()));
+        statusConsumer.accept(String.format("Mod loading complete - %d mods loaded", this.modList.size()));
         progress.complete();
     }
 
@@ -267,7 +253,7 @@ public class ModLoader {
     }
 
     private void handleInlineTransition(final Consumer<ModList> transition, final IModLoadingState state, final ModWorkManager.DrivenExecutor syncExecutor, final Runnable ticker) {
-        var pb = StartupMessageManager.addProgressBar("State transition " + state.name() + " running", 0);
+        var pb = StartupMessageManager.addProgressBar("State transition " +state.name()+" running", 0);
         syncExecutor.drive(ticker);
         transition.accept(this.modList);
         syncExecutor.drive(ticker);
@@ -366,63 +352,54 @@ public class ModLoader {
         return loadingStateValid;
     }
 
-    /** @deprecated Use {@link #hasCompletedState(IModLoadingState)} instead */
-    @Deprecated(forRemoval = true)
     public boolean hasCompletedState(final String stateName) {
         IModLoadingState state = stateManager.findState(stateName);
         return completedStates.contains(state);
     }
 
-    public boolean hasCompletedState(IModLoadingState state) {
-        return completedStates.contains(state);
-    }
-
-    public static <T extends IModBusEvent> void runEventGenerator(Function<ModContainer, T> generator) {
+    public <T extends Event & IModBusEvent> void runEventGenerator(Function<ModContainer, T> generator) {
         if (!loadingStateValid) {
             LOGGER.error("Cowardly refusing to send event generator to a broken mod state");
             return;
         }
-        for (var mod : ModList.get().getLoadedMods())
-            mod.acceptEvent(generator.apply(mod));
+        ModList.get().forEachModInOrder(mc -> mc.acceptEvent(generator.apply(mc)));
     }
 
-    public static <T extends IModBusEvent> void postEvent(T e) {
+    public <T extends Event & IModBusEvent> void postEvent(T e) {
         if (!loadingStateValid) {
             LOGGER.error("Cowardly refusing to send event {} to a broken mod state", e.getClass().getName());
             return;
         }
-        for (var mod : ModList.get().getLoadedMods())
-            mod.acceptEvent(e);
+        ModList.get().forEachModInOrder(mc -> mc.acceptEvent(e));
     }
 
-    public static <T extends IModBusEvent> T postEventWithReturn(T e) {
+    public <T extends Event & IModBusEvent> T postEventWithReturn(T e) {
         if (!loadingStateValid) {
             LOGGER.error("Cowardly refusing to send event {} to a broken mod state", e.getClass().getName());
             return e;
         }
-        for (var mod : ModList.get().getLoadedMods())
-            mod.acceptEvent(e);
+        ModList.get().forEachModInOrder(mc -> mc.acceptEvent(e));
         return e;
     }
 
     @SuppressWarnings("removal")
-    public static <T extends IModBusEvent> void postEventWrapContainerInModOrder(T event) {
+    public <T extends Event & IModBusEvent> void postEventWrapContainerInModOrder(T event) {
         postEventWithWrapInModOrder(event,
             (mc, e) -> ModLoadingContext.get().setActiveContainer(mc),
             (mc, e) -> ModLoadingContext.get().setActiveContainer(null)
         );
     }
 
-    public static <T extends IModBusEvent> void postEventWithWrapInModOrder(T e, BiConsumer<ModContainer, T> pre, BiConsumer<ModContainer, T> post) {
+    public <T extends Event & IModBusEvent> void postEventWithWrapInModOrder(T e, BiConsumer<ModContainer, T> pre, BiConsumer<ModContainer, T> post) {
         if (!loadingStateValid) {
             LOGGER.error("Cowardly refusing to send event {} to a broken mod state", e.getClass().getName());
             return;
         }
-        for (var mod : ModList.get().getLoadedMods()) {
-            pre.accept(mod, e);
-            mod.acceptEvent(e);
-            post.accept(mod, e);
-        }
+        ModList.get().forEachModInOrder(mc -> {
+            pre.accept(mc, e);
+            mc.acceptEvent(e);
+            post.accept(mc, e);
+        });
     }
 
     public List<ModLoadingWarning> getWarnings() {
@@ -439,7 +416,7 @@ public class ModLoader {
         return runningDataGen;
     }
 
-    private static final class ErroredModContainer extends ModContainer {
+    private static class ErroredModContainer extends ModContainer {
         public ErroredModContainer() {
             super();
         }

fmlcore/src/main/java/net/minecraftforge/fml/ModLoadingContext.java

@@ -19,13 +19,7 @@ public class ModLoadingContext {
     private Object languageExtension;
 
     /**
-     * @deprecated Use the context provided by your language loader in your mod's constructor. Example for Java mods: {@snippet :
-     * @Mod("examplemod")
-     * public final class ExampleMod {
-     *      public ExampleMod(FMLJavaModLoadingContext context) {
-     *           // Use context from the param instead of FMLJavaModLoadingContext.get() or ModLoadingContext.get()
-     *      }
-     * }}
+     * @deprecated Use the context provided by your language loader in your mod's constructor
      */
     @Deprecated(forRemoval = true, since="1.21.1")
     public static ModLoadingContext get() {

fmlcore/src/main/java/net/minecraftforge/fml/ModLoadingState.java

@@ -5,9 +5,10 @@
 
 package net.minecraftforge.fml;
 
+import net.minecraftforge.eventbus.api.Event;
+import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.fml.loading.progress.ProgressMeter;
 
-import java.util.Objects;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Executor;
@@ -35,7 +36,7 @@ public record ModLoadingState(
     Optional<IModStateTransition> transition
 ) implements IModLoadingState {
     @Override
-    public Optional<CompletableFuture<Void>> buildTransition(
+    public <T extends Event & IModBusEvent> Optional<CompletableFuture<Void>> buildTransition(
         final Executor syncExecutor,
         final Executor parallelExecutor,
         final ProgressMeter progressBar,
@@ -60,7 +61,7 @@ public record ModLoadingState(
      */
     @Deprecated(since = "1.21.3", forRemoval = true)
     public static ModLoadingState empty(final String name, final String previous, final ModLoadingPhase phase) {
-        return new ModLoadingState(name, previous, ml -> "", ml -> 0, phase, Optional.empty(), Optional.empty());
+        return of(name, phase).after(previous).empty();
     }
 
     /**
@@ -121,22 +122,6 @@ public record ModLoadingState(
         return new Builder(name, phase);
     }
 
-    @Override
-    public boolean equals(Object o) {
-        return o instanceof ModLoadingState that
-                && this.phase == that.phase
-                && this.name.equals(that.name)
-                && Objects.equals(this.previous, that.previous);
-    }
-
-    @Override
-    public int hashCode() {
-        int result = phase.hashCode();
-        result = 31 * result + name.hashCode();
-        result = 31 * result + Objects.hashCode(previous);
-        return result;
-    }
-
     public static class Builder {
         private final String name;
         private final ModLoadingPhase phase;

fmlcore/src/main/java/net/minecraftforge/fml/ModStateManager.java

@@ -41,13 +41,11 @@ public class ModStateManager {
     }
 
     public IModLoadingState findState(final String stateName) {
-        var result = stateMap.values()
+        return stateMap.values()
                 .stream()
                 .flatMap(List::stream)
                 .filter(mls -> mls.name().equals(stateName))
                 .findFirst()
-                .orElse(null);
-        if (result != null) return result;
-        else throw new IllegalArgumentException("Unknown IModLoadingState: " + stateName);
+                .orElseThrow(() -> new IllegalArgumentException("Unknown IModLoadingState: " + stateName));
     }
 }

fmlcore/src/main/java/net/minecraftforge/fml/ModStateTransitionHelper.java

@@ -9,16 +9,15 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.List;
-import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionException;
 import java.util.concurrent.CompletionStage;
 import java.util.concurrent.Executor;
 import java.util.function.BiFunction;
 import java.util.function.Function;
-
 import org.jetbrains.annotations.ApiStatus;
 
+import net.minecraftforge.eventbus.api.Event;
 import net.minecraftforge.fml.IModStateTransition.EventGenerator;
 import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.fml.loading.progress.ProgressMeter;
@@ -42,7 +41,7 @@ class ModStateTransitionHelper {
         if (t.stream().noneMatch(e -> e.exception() != null)) {
             return CompletableFuture.completedFuture(null);
         } else {
-            final var throwables = t.stream().map(FutureResult::exception).filter(Objects::nonNull).toList();
+            final var throwables = t.stream().map(FutureResult::exception).filter(e -> e != null).toList();
             CompletableFuture<Void> cf = new CompletableFuture<>();
             final RuntimeException accumulator = new RuntimeException();
             cf.completeExceptionally(accumulator);
@@ -71,15 +70,13 @@ class ModStateTransitionHelper {
         for (var future : futures) {
             int i = list.size();
             list.add(null);
-            @SuppressWarnings("unchecked") // Bypass a weird javac error with generic by forcing it to be the exact type we want.
-            var raw = ((CompletableFuture<V>)future);
-            results[i] = raw.whenComplete((result, exception) -> list.set(i, new FutureResult<>(result, exception)));
+            results[i] = future.whenComplete((result, exception) -> list.set(i, new FutureResult<>(result, exception)));
         }
 
         return CompletableFuture.allOf(results).handle((r, th)->null).thenApply(res -> list);
     }
 
-    private static <T extends IModBusEvent> void addCompletableFutureTaskForModDispatch(
+    private static <T extends Event & IModBusEvent> void addCompletableFutureTaskForModDispatch(
         final IModStateTransition transition,
         final Executor executor,
         final List<CompletableFuture<Void>> completableFutures,
@@ -138,14 +135,14 @@ class ModStateTransitionHelper {
             completableFutures.add(postDispatchHook);
     }
 
-    private static <T extends IModBusEvent> CompletableFuture<Void> getHook(BiFunction<Executor, ? extends EventGenerator<?>, CompletableFuture<Void>> hook, Executor executor, EventGenerator<T> eventGenerator) {
+    private static <T extends Event & IModBusEvent> CompletableFuture<Void> getHook(BiFunction<Executor, ? extends EventGenerator<?>, CompletableFuture<Void>> hook, Executor executor, EventGenerator<T> eventGenerator) {
         if (hook == null || hook == IModStateTransition.NULL_HOOK) return null;
         @SuppressWarnings("unchecked")
         var hookTyped = (BiFunction<Executor, EventGenerator<T>, CompletableFuture<Void>>)hook;
         return hookTyped.apply(executor, eventGenerator);
     }
 
-    static <T extends IModBusEvent> CompletableFuture<Void> build(
+    static <T extends Event & IModBusEvent> CompletableFuture<Void> build(
         final IModStateTransition transition,
         final String name,
         final Executor syncExecutor,

fmlcore/src/main/java/net/minecraftforge/fml/config/IConfigEvent.java

@@ -5,7 +5,7 @@
 
 package net.minecraftforge.fml.config;
 
-import net.minecraftforge.eventbus.api.event.InheritableEvent;
+import net.minecraftforge.eventbus.api.Event;
 import net.minecraftforge.fml.Bindings;
 
 import java.util.function.Function;
@@ -29,7 +29,7 @@ public interface IConfigEvent {
     ModConfig getConfig();
 
     @SuppressWarnings("unchecked")
-    default <T extends InheritableEvent & IConfigEvent> T self() {
+    default <T extends Event & IConfigEvent> T self() {
         return (T) this;
     }
 }

fmlcore/src/main/java/net/minecraftforge/fml/event/IModBusEvent.java

@@ -5,33 +5,8 @@
 
 package net.minecraftforge.fml.event;
 
-import net.minecraftforge.eventbus.api.bus.BusGroup;
-import net.minecraftforge.eventbus.api.bus.EventBus;
-import net.minecraftforge.eventbus.api.event.InheritableEvent;
-import org.jspecify.annotations.NonNull;
-
 /**
- * Marker interface for mod lifecycle events dispatched on the
- * {@linkplain net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext#getModBusGroup() mod BusGroup} instead
- * of the {@linkplain BusGroup#DEFAULT default BusGroup}.
- *
- * @apiNote Each mod gets its own unique mod BusGroup instance, obtained from the mod loading context. Most events
- *          should go on the default BusGroup.
+ * Marker interface for events dispatched on the ModLifecycle event bus instead of the primary event bus
  */
-public interface IModBusEvent extends InheritableEvent {
-    /**
-     * @param modEventBusGroup Obtained from {@link net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext#getModBusGroup()} or your language provider's equivalent.
-     * @param eventClass The event type you want to get the associated bus for.
-     */
-    static <T extends IModBusEvent> @NonNull EventBus<@NonNull T> getBus(@NonNull BusGroup modEventBusGroup, @NonNull Class<T> eventClass) {
-        // Do not copy! Temporary solution until the FML rewrite is complete. May throw in future
-        // without prior notice.
-        //
-        // Mods creating their own events should directly assign the result of the create method to a
-        // static final field in their event class, without wrapping or calling multiple times.
-        //
-        // Mods using existing events should instead use the existing static final BUS field in the
-        // event class (for most events) or getBus(BusGroup) method (for mod bus events).
-        return EventBus.create(modEventBusGroup, eventClass);
-    }
+public interface IModBusEvent {
 }

fmlcore/src/main/java/net/minecraftforge/fml/util/thread/EffectiveSide.java

@@ -7,11 +7,8 @@ package net.minecraftforge.fml.util.thread;
 
 import net.minecraftforge.fml.LogicalSide;
 
-/**
- * Attempts to determine the effect side of the current thread, based on know threads in networking.
- * This is not guaranteed to be correct, and modders should use other methods to determine the logical side when possible.
- */
-public class EffectiveSide {
+public class EffectiveSide
+{
     public static LogicalSide get() {
         final ThreadGroup group = Thread.currentThread().getThreadGroup();
         return group instanceof SidedThreadGroup ? ((SidedThreadGroup) group).getSide() : LogicalSide.CLIENT;

fmlcore/src/main/java/net/minecraftforge/fml/util/thread/SidedThreadGroups.java

@@ -7,13 +7,11 @@ package net.minecraftforge.fml.util.thread;
 
 import net.minecraftforge.fml.LogicalSide;
 
-public final class SidedThreadGroups {
+public final class SidedThreadGroups
+{
     public static final SidedThreadGroup CLIENT = new SidedThreadGroup(LogicalSide.CLIENT);
     public static final SidedThreadGroup SERVER = new SidedThreadGroup(LogicalSide.SERVER);
 
-    public static SidedThreadGroup get(boolean client) {
-        return client ? CLIENT : SERVER;
+    private SidedThreadGroups() {
     }
-
-    private SidedThreadGroups() { }
 }

fmlearlydisplay/build.gradle

@@ -28,7 +28,7 @@ java {
 }
 
 dependencies {
-    compileOnly(libs.jetbrains.annotations)
+    compileOnly(libs.nulls)
     implementation(project(':fmlloader'))
     implementation(project(':fmlcore'))
     implementation(libs.bundles.lwjgl)

fmlloader/build.gradle

@@ -13,7 +13,7 @@ apply from: rootProject.file('build_shared.gradle')
 configurations.forEach{ it.transitive = false }
 
 dependencies {
-    compileOnly(libs.jetbrains.annotations)
+    compileOnly(libs.nulls)
 
     api(libs.bundles.asm) // Needed by all the black magic
     api(libs.forgespi)
@@ -26,6 +26,7 @@ dependencies {
     api(libs.apache.commons)
     api(libs.bundles.night.config)
     api(libs.modlauncher)
+    api(libs.coremods)
     api(libs.mojang.logging)
     api(libs.jarjar.selector)
     api(libs.jarjar.meta)
@@ -35,13 +36,12 @@ dependencies {
     implementation(libs.accesstransformers)
     implementation(libs.terminalconsoleappender)
     implementation(libs.jimfs)
-    implementation(libs.roimfs)
 
     // Needed because we have a custom log4j plugin, and they removed package scanning and require a data file to be generated
     implementation(libs.log4j.core)
     annotationProcessor(libs.bundles.log4j)
 
-    testCompileOnly(libs.jetbrains.annotations)
+    testCompileOnly(libs.nulls)
     testRuntimeOnly(libs.bootstrap)
 }
 
@@ -103,31 +103,11 @@ tasks.register('writeForgeVersionJson') {
     }
 }
 
-tasks.register('jarJarOptionsJson', net.minecraftforge.forge.tasks.JarJarMetadataOptions) {
-    metadataFile = project.file('src/main/resources/jarjar_options.json')
-    // This is resolved too early by cpw.mods.modlauncher.TransformationServicesHandler.discoverServices(DiscoveryData) But eventually...
-    //add(libs.mixin, 'org/spongepowered/asm/mixin/Mixin.class')
-    add(libs.mixinextras.forge) {
-        containedJarMetadata {
-            path = ''
-        }
-        resource = 'com/llamalad7/mixinextras/platform/forge/MixinExtrasConfigPlugin.class'
-        layer = 'GAMELIBRARY'
-        id = 'mixinextras'
-        nested = true
-    }
-}
-
 tasks.named('generateResources').configure {
     dependsOn('eclipseJdt')
     dependsOn('eclipseJdtApt')
     dependsOn('eclipseFactorypath')
     dependsOn('writeForgeVersionJson')
-    dependsOn('jarJarOptionsJson')
-}
-
-tasks.named('sourcesJar') {
-    dependsOn('jarJarOptionsJson')
 }
 
 eclipse {

fmlloader/src/main/java/net/minecraftforge/fml/common/asm/CapabilityTokenSubclass.java

@@ -34,10 +34,11 @@ import cpw.mods.modlauncher.serviceapi.ILaunchPluginService;
  *  }</code>
  * </pre>
  */
-public final class CapabilityTokenSubclass implements ILaunchPluginService {
+public class CapabilityTokenSubclass implements ILaunchPluginService {
+
     private static final String FUNC_NAME = "getType";
     private static final String FUNC_DESC = "()Ljava/lang/String;";
-    private static final String CAP_INJECT = "net/minecraftforge/common/capabilities/CapabilityToken"; // Don't directly reference this to prevent class loading.
+    private static final String CAP_INJECT = "net/minecraftforge/common/capabilities/CapabilityToken"; //Don't directly reference this to prevent class loading.
 
     @Override
     public String name() {
@@ -55,11 +56,8 @@ public final class CapabilityTokenSubclass implements ILaunchPluginService {
         String internalName = classType.getInternalName();
         if (internalName.startsWith("net/minecraft/") || internalName.startsWith("com/mojang/"))
             return NAY;
-
-        if (internalName.startsWith("net/minecraftforge/common/capabilities/"))
-            return YAY;
         
-        return internalName.contains("$") ? YAY : NAY; // Anonymous subclasses only
+        return YAY;
     }
 
     @Override
@@ -72,7 +70,7 @@ public final class CapabilityTokenSubclass implements ILaunchPluginService {
             }
             return ComputeFlags.SIMPLE_REWRITE;
         } else if (CAP_INJECT.equals(classNode.superName)) {
-            var cls = new Object() { String value = null; };
+            Holder cls = new Holder();
 
             SignatureReader reader = new SignatureReader(classNode.signature); // Having a node version of this would probably be useful.
             reader.accept(new SignatureVisitor(Opcodes.ASM9) {
@@ -108,4 +106,8 @@ public final class CapabilityTokenSubclass implements ILaunchPluginService {
             return ComputeFlags.NO_REWRITE;
         }
     }
+
+    private static final class Holder {
+        String value;
+    }
 }

fmlloader/src/main/java/net/minecraftforge/fml/common/asm/ObjectHolderDefinalize.java

@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) Forge Development LLC and contributors
+ * SPDX-License-Identifier: LGPL-2.1-only
+ */
+
+package net.minecraftforge.fml.common.asm;
+
+import java.util.EnumSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+import org.objectweb.asm.tree.AnnotationNode;
+import org.objectweb.asm.tree.ClassNode;
+import cpw.mods.modlauncher.serviceapi.ILaunchPluginService;
+
+/**
+ * Removes the final modifier from fields with the @ObjectHolder annotation, prevents the JITer from in lining them so our runtime replacements can work.
+ * Will also de-finalize all fields in on class level annotations.
+ */
+public class ObjectHolderDefinalize implements ILaunchPluginService {
+    // Hardcoded map of vanilla classes that should have object holders for each field of the given registry type.
+    // IMPORTANT: Updates to this collection must be reflected in ObjectHolderRegistry. Duplicated cuz classloaders, yay!
+    // Classnames are validated in ObjectHolderRegistry.
+    private static final Map<String, VanillaObjectHolderData> VANILLA_OBJECT_HOLDERS = Stream.of(
+            new VanillaObjectHolderData("net.minecraft.world.level.block.Blocks", "block", "net.minecraft.world.level.block.Block"),
+            new VanillaObjectHolderData("net.minecraft.world.item.Items", "item", "net.minecraft.world.item.Item"),
+            new VanillaObjectHolderData("net.minecraft.world.item.enchantment.Enchantments", "enchantment", "net.minecraft.world.item.enchantment.Enchantment"),
+            new VanillaObjectHolderData("net.minecraft.world.effect.MobEffects", "mob_effect", "net.minecraft.world.effect.MobEffect"),
+            new VanillaObjectHolderData("net.minecraft.core.particles.ParticleTypes", "particle_type", "net.minecraft.core.particles.ParticleType"),
+            new VanillaObjectHolderData("net.minecraft.sounds.SoundEvents", "sound_event", "net.minecraft.sounds.SoundEvent")
+    ).collect(Collectors.toUnmodifiableMap(VanillaObjectHolderData::holderClass, Function.identity()));
+    private static final Set<String> VANILLA_OBJECT_HOLDER_CLASSES = VANILLA_OBJECT_HOLDERS.keySet().stream()
+            .map(it -> it.replace('.', '/'))
+            .collect(Collectors.toUnmodifiableSet());
+    private static final String OBJECT_HOLDER = "Lnet/minecraftforge/registries/ObjectHolder;"; //Don't directly reference this to prevent class loading.
+    private static final int PUBLIC_STATIC_FINAL_FLAGS = Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC | Opcodes.ACC_FINAL;
+
+    @Override
+    public String name() {
+        return "object_holder_definalize";
+    }
+
+    private static final EnumSet<Phase> YAY = EnumSet.of(Phase.AFTER);
+    private static final EnumSet<Phase> NAY = EnumSet.noneOf(Phase.class);
+
+    @Override
+    public EnumSet<Phase> handlesClass(Type classType, boolean isEmpty) {
+        if (isEmpty)
+            return NAY;
+
+        // Let's skip processing classes that definitely don't have object holders
+        String internalName = classType.getInternalName();
+
+        // Forge classes that aren't in the debug package (that package is used for tests)
+        if (internalName.startsWith("net/minecraftforge/") && !internalName.substring(18).contains("debug"))
+            return NAY;
+
+        // Vanilla classes that don't have object holders
+        if (internalName.startsWith("com/mojang/"))
+            return NAY;
+
+        // ...except specific ones we added to the VANILLA_OBJECT_HOLDERS map
+        if (internalName.startsWith("net/minecraft/") && !VANILLA_OBJECT_HOLDER_CLASSES.contains(internalName))
+            return NAY;
+
+        return YAY;
+    }
+
+    private static boolean hasHolder(List<AnnotationNode> lst) {
+        return lst != null && lst.stream().anyMatch(n -> n.desc.equals(OBJECT_HOLDER));
+    }
+
+    @SuppressWarnings("unused")
+    private String getValue(List<AnnotationNode> lst)
+    {
+        AnnotationNode ann = lst.stream().filter(n -> n.desc.equals(OBJECT_HOLDER)).findFirst().get();
+        if (ann.values != null)
+        {
+            for (int x = 0; x < ann.values.size() - 1; x += 2) {
+                if (ann.values.get(x).equals("value")) {
+                    return (String)ann.values.get(x + 1);
+                }
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public int processClassWithFlags(final Phase phase, final ClassNode classNode, final Type classType, final String reason)
+    {
+        final AtomicBoolean changes = new AtomicBoolean();
+        //Must be public static finals, and non-array objects
+
+        //Fix Annotated Fields before injecting from class level
+        classNode.fields.stream().filter(f -> ((f.access & PUBLIC_STATIC_FINAL_FLAGS) == PUBLIC_STATIC_FINAL_FLAGS) && f.desc.startsWith("L") && hasHolder(f.visibleAnnotations)).forEach(f ->
+        {
+            int prev = f.access;
+            f.access &= ~Opcodes.ACC_FINAL; //Strip final
+            f.access |= Opcodes.ACC_SYNTHETIC; //Add Synthetic so we can check in runtime. ? Good idea?
+            changes.compareAndSet(false, prev != f.access);
+        });
+
+        if (VANILLA_OBJECT_HOLDERS.containsKey(classType.getClassName())) //Class level, de-finalize all fields and add @ObjectHolder to them!
+        {
+            classNode.fields.stream().filter(f -> ((f.access & PUBLIC_STATIC_FINAL_FLAGS) == PUBLIC_STATIC_FINAL_FLAGS) && f.desc.startsWith("L")).forEach(f ->
+            {
+                int prev = f.access;
+                f.access &= ~Opcodes.ACC_FINAL;
+                f.access |= Opcodes.ACC_SYNTHETIC;
+                /*if (!hasHolder(f.visibleAnnotations)) //Add field level annotation, doesn't do anything until after we figure out how ASMDataTable is gatherered
+                {
+                   if (value == null)
+                       f.visitAnnotation(OBJECT_HOLDER, true);
+                   else
+                       f.visitAnnotation(OBJECT_HOLDER, true).visit("value", value + ":" + f.name.toLowerCase());
+                }*/
+                changes.compareAndSet(false, prev != f.access);
+            });
+        }
+        return changes.get() ? ComputeFlags.SIMPLE_REWRITE : ComputeFlags.NO_REWRITE;
+    }
+
+    private record VanillaObjectHolderData(String holderClass, String registryName, String registryType) {}
+}

fmlloader/src/main/java/net/minecraftforge/fml/common/asm/RuntimeEnumExtender.java

@@ -7,9 +7,9 @@ package net.minecraftforge.fml.common.asm;
 
 import java.util.EnumSet;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import com.mojang.logging.LogUtils;
-import net.minecraftforge.fml.loading.LoadingModList;
 import org.objectweb.asm.Label;
 import org.objectweb.asm.Opcodes;
 import org.objectweb.asm.Type;
@@ -47,21 +47,16 @@ public class RuntimeEnumExtender implements ILaunchPluginService {
     private static final EnumSet<Phase> YAY = EnumSet.of(Phase.AFTER);
     private static final EnumSet<Phase> NAY = EnumSet.noneOf(Phase.class);
 
-    private static final class LazyInit {
-        private LazyInit() {}
-        private static final boolean ANY_MODS = LoadingModList.get().getMods().size() > 2; // 2: forge, minecraft
-    }
-
     @Override
     public EnumSet<Phase> handlesClass(Type classType, boolean isEmpty) {
-        if (isEmpty || !LazyInit.ANY_MODS)
+        if (isEmpty)
             return NAY;
 
         String internalName = classType.getInternalName();
-        if (internalName.startsWith("net/minecraft/client/model") || internalName.startsWith("net/minecraft/world"))
-            return YAY;
+        if (internalName.startsWith("net/minecraftforge/") || internalName.startsWith("com/mojang/"))
+            return NAY;
 
-        return NAY;
+        return YAY;
     }
 
     @Override

fmlloader/src/main/java/net/minecraftforge/fml/loading/FMLLoader.java

@@ -16,6 +16,7 @@ import net.minecraftforge.accesstransformer.service.AccessTransformerService;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.fml.loading.targets.CommonLaunchHandler;
 import net.minecraftforge.forgespi.Environment;
+import net.minecraftforge.forgespi.coremod.ICoreModProvider;
 import org.slf4j.Logger;
 
 import java.nio.file.Path;
@@ -33,6 +34,7 @@ import static net.minecraftforge.fml.loading.LogMarkers.SCAN;
 public class FMLLoader {
     private static final Logger LOGGER = LogUtils.getLogger();
     private static AccessTransformerService accessTransformer;
+    private static ICoreModProvider coreModProvider;
     private static LanguageLoadingProvider languageLoadingProvider;
     private static Dist dist;
     private static String naming;
@@ -54,7 +56,10 @@ public class FMLLoader {
 
         checkPackage(ITransformationService.class, "4.0", "ModLauncher");
         accessTransformer  = getPlugin(env, "accesstransformer",  "1.0", "AccessTransformer");
+        /*eventBus       =*/ getPlugin(env, "eventbus",           "1.0", "EventBus");
         runtimeDistCleaner = getPlugin(env, "runtimedistcleaner", "1.0", "RuntimeDistCleaner");
+        coreModProvider = getSingleService(ICoreModProvider.class, "CoreMod");
+        LOGGER.debug(CORE, "FML found CoreMod version : {}", JarVersionLookupHandler.getInfo(coreModProvider.getClass()).impl().version().orElse("MISSING"));
         checkPackage(Environment.class, "2.0", "ForgeSPI");
 
         try {
@@ -92,7 +97,6 @@ public class FMLLoader {
         }
     }
 
-    @SuppressWarnings("unused")
     private static <T> T getSingleService(Class<T> clazz, String name) throws IncompatibleEnvironmentException {
           var providers = new ArrayList<T>();
           for (var itr = ServiceLoader.load(FMLLoader.class.getModule().getLayer(), clazz).iterator(); itr.hasNext(); ) {
@@ -143,8 +147,9 @@ public class FMLLoader {
     }
 
     public static List<ITransformationService.Resource> beginModScan(final Map<String,?> arguments) {
-        LOGGER.debug(SCAN, "Scanning for Mod Locators");
-        modValidator = ModDiscoverer.discoverMods(arguments);
+        LOGGER.debug(SCAN,"Scanning for Mod Locators");
+        var modDiscoverer = new ModDiscoverer(arguments);
+        modValidator = modDiscoverer.discoverMods();
         var pluginResources = modValidator.getPluginResources();
         return List.of(pluginResources);
     }
@@ -157,6 +162,10 @@ public class FMLLoader {
         return List.of(modValidator.getModResources());
     }
 
+    public static ICoreModProvider getCoreModProvider() {
+        return coreModProvider;
+    }
+
     public static LanguageLoadingProvider getLanguageLoadingProvider() {
         return languageLoadingProvider;
     }

fmlloader/src/main/java/net/minecraftforge/fml/loading/FMLServiceProvider.java

@@ -68,6 +68,7 @@ public class FMLServiceProvider implements ITransformationService {
     @SuppressWarnings("rawtypes")
     @Override
     public @NotNull List<ITransformer> transformers() {
-        return List.of();
+        LOGGER.debug(CORE, "Loading coremod transformers");
+        return new ArrayList<>(FMLLoader.getCoreModProvider().getCoreModTransformers());
     }
 }

fmlloader/src/main/java/net/minecraftforge/fml/loading/LoadingModList.java

@@ -5,12 +5,13 @@
 
 package net.minecraftforge.fml.loading;
 
-import net.minecraftforge.fml.loading.EarlyLoadingException.ExceptionData;
+import com.mojang.logging.LogUtils;
 import net.minecraftforge.fml.loading.moddiscovery.BackgroundScanHandler;
 import net.minecraftforge.fml.loading.moddiscovery.ModFile;
 import net.minecraftforge.fml.loading.moddiscovery.ModFileInfo;
 import net.minecraftforge.fml.loading.moddiscovery.ModInfo;
 import net.minecraftforge.forgespi.locating.IModFile;
+import org.slf4j.Logger;
 
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -20,10 +21,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
-import org.slf4j.Logger;
-
-import com.mojang.logging.LogUtils;
-
 /**
  * Master list of all mods <em>in the loading context. This class cannot refer outside the
  * loading package</em>
@@ -42,7 +39,9 @@ public class LoadingModList {
                 .map(ModFile::getModFileInfo)
                 .map(ModFileInfo.class::cast)
                 .toList();
-        this.sortedList = sortedList.stream().toList();
+        this.sortedList = sortedList.stream()
+                .map(ModInfo.class::cast)
+                .toList();
         this.fileById = this.modFiles.stream()
                 .map(ModFileInfo::getMods)
                 .flatMap(Collection::stream)
@@ -62,23 +61,31 @@ public class LoadingModList {
         return INSTANCE;
     }
 
-    public void addAccessTransformers() {
-        var errors = new ArrayList<ExceptionData>();
+    public void addCoreMods() {
+        modFiles.stream()
+                .map(ModFileInfo::getFile)
+                .map(ModFile::getCoreMods)
+                .flatMap(List::stream)
+                .forEach(FMLLoader.getCoreModProvider()::addCoreMod);
+    }
 
+    public void addAccessTransformers() {
+        var errors = new ArrayList<EarlyLoadingException.ExceptionData>();
         for (ModFileInfo modFile : modFiles) {
             ModFile mod = modFile.getFile();
-            for (var at : mod.getAccessTransformers()) {
+            for (Path at : mod.getAccessTransformers()) {
                 if (!Files.exists(at)) {
                     var message = "Invalid mod file: " + modFile.getFile().getFileName() + ". Missing Access Transformer: " + at;
-                    errors.add(new ExceptionData(message));
+                    errors.add(new EarlyLoadingException.ExceptionData(message));
                     LOGGER.error(message);
-                } else
+                } else {
                     FMLLoader.addAccessTransformer(at, mod);
+                }
             }
         }
-
-        if (!errors.isEmpty())
+        if (!errors.isEmpty()) {
             preLoadErrors.add(new EarlyLoadingException("Invalid Access Transformers", null, errors));
+        }
     }
 
     public void addForScanning(BackgroundScanHandler backgroundScanHandler) {

fmlloader/src/main/java/net/minecraftforge/fml/loading/ModDirTransformerDiscoverer.java

@@ -7,10 +7,8 @@ package net.minecraftforge.fml.loading;
 
 import com.mojang.logging.LogUtils;
 import cpw.mods.jarhandling.SecureJar;
-import cpw.mods.modlauncher.Launcher;
 import cpw.mods.modlauncher.api.LamdbaExceptionUtils;
 import cpw.mods.modlauncher.api.NamedPath;
-import cpw.mods.modlauncher.api.TypesafeMap;
 import cpw.mods.modlauncher.serviceapi.ITransformerDiscoveryService;
 
 import org.jetbrains.annotations.ApiStatus;
@@ -42,17 +40,6 @@ public class ModDirTransformerDiscoverer implements ITransformerDiscoveryService
 
     @Override
     public void earlyInitialization(final String launchTarget, final String[] arguments) {
-        boolean isMixinEnabledInDev = false;
-        for (String arg : arguments) {
-            if (arg.startsWith("-mixin") || arg.startsWith("--mixin")) {
-                isMixinEnabledInDev = true;
-                break;
-            }
-        }
-        Launcher.INSTANCE.blackboard().putIfAbsent(
-            TypesafeMap.Key.getOrCreate(Launcher.INSTANCE.blackboard(), "isMixinEnabledInDev", Boolean.class),
-            isMixinEnabledInDev
-        );
         ImmediateWindowHandler.load(launchTarget, arguments);
     }
 

fmlloader/src/main/java/net/minecraftforge/fml/loading/ModSorter.java

@@ -46,7 +46,7 @@ public class ModSorter {
         List<ModFile> modFiles;
 
         try {
-            modFiles = UniqueModListBuilder.buildUniqueList(mods).modFiles();
+            modFiles = new UniqueModListBuilder(mods).buildUniqueList().modFiles();
         } catch (EarlyLoadingException e) {
             // We cannot build any list with duped mods. We have to abort immediately and report it
             // Note this will never actually throw an error because the duplicate checks are done in ModDiscovererer before we get to this phase

fmlloader/src/main/java/net/minecraftforge/fml/loading/RuntimeDistCleaner.java

@@ -45,7 +45,6 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
 
     @Override
     public EnumSet<Phase> handlesClass(Type classType, boolean isEmpty) {
-        // TODO: [FML][RuntimeDistCleaner] In 26.1, only return YAY for MC classes on mod dev server
         if (isEmpty)
             return NAY;
 
@@ -54,7 +53,7 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
             return NAY;
 
         // No Vanilla classes use @OnlyIn(Dist.SERVER), so we can skip them entirely when we're running on a client
-        if (FMLEnvironment.dist.isClient() && isMinecraftClass(internalName))
+        if (FMLEnvironment.dist.isClient() && (internalName.startsWith("net/minecraft/") || internalName.startsWith("com/mojang/")))
             return NAY;
 
         return YAY;
@@ -65,29 +64,15 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
         var changed = false;
 
         var annotations = unpack(classNode.visibleAnnotations);
-        var isNonMinecraftClass = !isMinecraftClass(classNode.name);
-        final class LazyInit {
-            private LazyInit() {}
-            private static final boolean CAN_EXPLODE = !FMLEnvironment.production && "21.6".equals(FMLLoader.versionInfo().mcVersion());
-        }
 
         if (remove(annotations, DIST)) {
             LOGGER.error(DISTXFORM, "Attempted to load class {} for invalid dist {}", classNode.name, DIST);
-            throw new RuntimeException("Attempted to load class " + classNode.name  + " for invalid dist " + DIST);
+            throw new RuntimeException("Attempted to load class "+ classNode.name  + " for invalid dist "+ DIST);
         }
 
-        if (!annotations.isEmpty()) {
-            if (isNonMinecraftClass) {
-                if (LazyInit.CAN_EXPLODE)
-                    throw new UnsupportedOperationException("Mod class " + classNode.name + " is annotated with @OnlyIn, this is no longer supported as it slowed down startup times");
-                else
-                    LOGGER.warn(DISTXFORM, "Class {} is annotated with @OnlyIn, this is deprecated and won't work in a future MC release.", classNode.name);
-            }
-
-            if (!FMLEnvironment.production && hasModAnnotation(classNode.visibleAnnotations)) {
-                LOGGER.error(DISTXFORM, "Attempted to load class {} with @Mod and @OnlyIn/@OnlyIns annotations", classNode.name);
-                throw new RuntimeException("Found @OnlyIn on @Mod class " + classNode.name  + " - this is not allowed as it causes crashes. Remove the OnlyIn and consider setting clientSideOnly=true in the root of your mods.toml instead");
-            }
+        if (!FMLEnvironment.production && !annotations.isEmpty() && hasModAnnotation(classNode.visibleAnnotations)) {
+            LOGGER.error(DISTXFORM, "Attempted to load class {} with @Mod and @OnlyIn/@OnlyIns annotations", classNode.name);
+            throw new RuntimeException("Found @OnlyIn on @Mod class "+ classNode.name  + " - this is not allowed as it causes crashes. Remove the OnlyIn and consider setting clientSideOnly=true in the root of your mods.toml instead");
         }
 
         if (classNode.interfaces != null && !classNode.interfaces.isEmpty()) {
@@ -96,7 +81,7 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
                     continue;
 
                 if (classNode.interfaces.remove(ann.intf)) {
-                    LOGGER.debug(DISTXFORM, "Removing Interface: {} implements {}", classNode.name, ann.intf);
+                    LOGGER.debug(DISTXFORM,"Removing Interface: {} implements {}", classNode.name, ann.intf);
                     changed = true;
                 }
             }
@@ -120,13 +105,6 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
                 LOGGER.debug(DISTXFORM, "Removing field: {}.{}", classNode.name, field.name);
                 itr.remove();
                 changed = true;
-
-                if (isNonMinecraftClass) {
-                    if (LazyInit.CAN_EXPLODE)
-                        throw new UnsupportedOperationException("Field " + field.name + " in mod class " + classNode.name + " is annotated with @OnlyIn, this is no longer supported as it slowed down startup times");
-                    else
-                        LOGGER.warn(DISTXFORM, "Field {} in class {} is annotated with @OnlyIn, this is deprecated and won't work in a future MC release.", field.name, classNode.name);
-                }
             }
         }
 
@@ -138,13 +116,6 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
                 itr.remove();
                 lambdaGatherer.accept(method);
                 changed = true;
-
-                if (isNonMinecraftClass) {
-                    if (LazyInit.CAN_EXPLODE)
-                        throw new UnsupportedOperationException("Method " + method.name + " in mod class " + classNode.name + " is annotated with @OnlyIn, this is no longer supported as it slowed down startup times");
-                    else
-                        LOGGER.warn(DISTXFORM, "Method {} in class {} is annotated with @OnlyIn, this is deprecated and won't work in a future MC release.", method.name, classNode.name);
-                }
             }
         }
 
@@ -171,7 +142,7 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
         return changed ? ComputeFlags.SIMPLE_REWRITE : ComputeFlags.NO_REWRITE;
     }
 
-    private record Target(String side, String intf) {
+    private static record Target(String side, String intf) {
         static Target from(final AnnotationNode node) {
             var idx = node.values.indexOf("value");
             var value = (String[])node.values.get(idx + 1); // Enums are stored as [Type, Value]
@@ -237,10 +208,6 @@ public final class RuntimeDistCleaner implements ILaunchPluginService {
         return false;
     }
 
-    private static boolean isMinecraftClass(final String internalName) {
-        return internalName.startsWith("net/minecraft/") || internalName.startsWith("com/mojang/");
-    }
-
     @SuppressWarnings("unchecked")
     @Override
     public Consumer<Dist> getExtension() {

fmlloader/src/main/java/net/minecraftforge/fml/loading/UniqueModListBuilder.java

@@ -17,6 +17,8 @@ import java.util.Collection;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 import static java.util.stream.Collectors.groupingBy;
 import static java.util.stream.Collectors.joining;
@@ -24,12 +26,19 @@ import static net.minecraftforge.fml.loading.LogMarkers.LOADING;
 
 @ApiStatus.Internal
 @Deprecated(since = "1.21.3", forRemoval = true) // TODO: [FML][Loading] Convert to package private in 1.22
-public final class UniqueModListBuilder {
-    private UniqueModListBuilder() {}
+public class UniqueModListBuilder {
+    private final static Logger LOGGER = LogUtils.getLogger();
 
-    private static final Logger LOGGER = LogUtils.getLogger();
+    private final List<ModFile> modFiles;
+
+    public UniqueModListBuilder(final List<ModFile> modFiles) {
+        this.modFiles = modFiles;
+    }
+
+    public UniqueModListData buildUniqueList() {
+        List<ModFile> uniqueModList;
+        List<ModFile> uniqueLibListWithVersion;
 
-    public static UniqueModListData buildUniqueList(List<ModFile> modFiles) {
         // Collect mod files by module name. This will be used for deduping purposes
         final Map<String, List<ModFile>> modFilesByFirstId = modFiles.stream()
                 .filter(mf -> mf.getModFileInfo() != null)
@@ -40,12 +49,12 @@ public final class UniqueModListBuilder {
                 .collect(groupingBy(UniqueModListBuilder::getModId));
 
         // Select the newest by artifact version sorting of non-unique files thus identified
-        final List<ModFile> uniqueModList = modFilesByFirstId.entrySet().stream()
+        uniqueModList = modFilesByFirstId.entrySet().stream()
                 .map(UniqueModListBuilder::selectNewestModInfo)
                 .toList();
 
         // Select the newest by artifact version sorting of non-unique files thus identified
-        final List<ModFile> uniqueLibListWithVersion = libFilesWithVersionByModuleName.entrySet().stream()
+        uniqueLibListWithVersion = libFilesWithVersionByModuleName.entrySet().stream()
                 .map(UniqueModListBuilder::selectNewestModInfo)
                 .toList();
 
@@ -57,10 +66,12 @@ public final class UniqueModListBuilder {
                 .collect(groupingBy(IModInfo::getModId));
 
         // Transform to the full lib id list
-        final List<List<ModFile>> versionedLibs = uniqueLibListWithVersion.stream()
+        final Map<String, List<ModFile>> versionedLibIds = uniqueLibListWithVersion.stream()
                 .map(UniqueModListBuilder::getModId)
-                .map(libFilesWithVersionByModuleName::get)
-                .toList();
+                .collect(Collectors.toMap(
+                    Function.identity(),
+                    libFilesWithVersionByModuleName::get
+                ));
 
         // Its theoretically possible that some mod has somehow moved an id to a secondary place, thus causing a dupe.
         // We can't handle this
@@ -73,24 +84,24 @@ public final class UniqueModListBuilder {
                 )).toList();
 
         if (!dupedModErrors.isEmpty()) {
-            LOGGER.error(LOADING, "Found duplicate mods:\n{}", String.join("\n", dupedModErrors));
+            LOGGER.error(LOADING, "Found duplicate mods:\n{}", dupedModErrors.stream().collect(joining("\n")));
             throw new EarlyLoadingException("Duplicate mods found", null, dupedModErrors.stream()
-                    .map(EarlyLoadingException.ExceptionData::new)
+                    .map(s -> new EarlyLoadingException.ExceptionData(s))
                     .toList());
         }
 
 
-        final List<String> dupedLibErrors = versionedLibs.stream()
-                .filter(libModFiles -> libModFiles.size() > 1)
+        final List<String> dupedLibErrors = versionedLibIds.values().stream()
+                .filter(modFiles -> modFiles.size() > 1)
                 .map(mods -> String.format("\tLibrary: '%s' from files: %s",
                         getModId(mods.getFirst()),
                         mods.stream().map(ModFile::getFileName).collect(joining(", "))
                 )).toList();
 
         if (!dupedLibErrors.isEmpty()) {
-            LOGGER.error(LOADING, "Found duplicate plugins or libraries:\n{}", String.join("\n", dupedLibErrors));
+            LOGGER.error(LOADING, "Found duplicate plugins or libraries:\n{}", dupedLibErrors.stream().collect(joining("\n")));
             throw new EarlyLoadingException("Duplicate plugins or libraries found", null, dupedLibErrors.stream()
-                    .map(EarlyLoadingException.ExceptionData::new)
+                    .map(s -> new EarlyLoadingException.ExceptionData(s))
                     .toList());
         }
 
@@ -111,7 +122,7 @@ public final class UniqueModListBuilder {
             modInfoList.sort(Comparator.comparing(UniqueModListBuilder::getVersion).reversed());
             LOGGER.debug("Selected file {} for modid {} with version {}", modInfoList.getFirst().getFileName(), fullList.getKey(), getVersion(modInfoList.getFirst()));
         }
-        return modInfoList.getFirst();
+        return modInfoList.get(0);
     }
 
     private static ArtifactVersion getVersion(final ModFile mf) {
@@ -119,7 +130,7 @@ public final class UniqueModListBuilder {
             return mf.getJarVersion();
         }
 
-        return mf.getModInfos().getFirst().getVersion();
+        return mf.getModInfos().get(0).getVersion();
     }
 
     private static String getModId(ModFile modFile) {
@@ -127,7 +138,7 @@ public final class UniqueModListBuilder {
             return modFile.getSecureJar().name();
         }
 
-        return modFile.getModFileInfo().getMods().getFirst().getModId();
+        return modFile.getModFileInfo().getMods().get(0).getModId();
     }
 
     public record UniqueModListData(List<ModFile> modFiles, Map<String, List<ModFile>> modFilesByFirstId) {}

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/AbstractModProvider.java

@@ -54,16 +54,12 @@ public abstract class AbstractModProvider implements IModProvider {
 
     @Nullable
     protected IModLocator.ModFileOrException createMod(Path path, boolean ignoreUnknown, String defaultType) {
-        var debug = path.toString();
-        if (debug.equals("/"))
-            debug = path.toUri().toString();
-
         var mjm = new ModJarMetadata();
         SecureJar sj = null;
         try {
             sj = SecureJar.from(jar -> loadMetaFromJar(jar, mjm), path);
         } catch (Throwable t) {
-            return new IModLocator.ModFileOrException(null, new ModFileLoadingException("Failed to create secure jar for \"" + debug + "\" - " + t.getMessage()));
+            return new IModLocator.ModFileOrException(null, new ModFileLoadingException("Failed to create secure jar for \"" + path + "\" - " + t.getMessage()));
         }
 
         IModFile mod;
@@ -72,7 +68,7 @@ public abstract class AbstractModProvider implements IModProvider {
             type = defaultType;
 
         if (sj.moduleDataProvider().findFile(MODS_TOML).isPresent()) {
-            LOGGER.debug(LogMarkers.SCAN, "Found {} mod of type {}: {}", MODS_TOML, type, debug);
+            LOGGER.debug(LogMarkers.SCAN, "Found {} mod of type {}: {}", MODS_TOML, type, path);
             mod = new ModFile(sj, this, ModFileParser::modsTomlParser);
             // ModJarMetadata is only used when loading mods.toml mods as ModJarMetadata
             mjm.setModFile(mod);
@@ -81,17 +77,17 @@ public abstract class AbstractModProvider implements IModProvider {
                 return new IModLocator.ModFileOrException(null, new ModFileLoadingException("File \"%s\" is not a Forge mod and cannot be loaded. Look for a Forge version of this mod or consider alternative mods.".formatted(mod.getFileName())));
             }
         } else if (type != null) {
-            LOGGER.debug(LogMarkers.SCAN, "Found {} mod of type {}: {}", JarFile.MANIFEST_NAME, type, debug);
+            LOGGER.debug(LogMarkers.SCAN, "Found {} mod of type {}: {}", JarFile.MANIFEST_NAME, type, path);
             mod = new ModFile(sj, this, this::manifestParser, type);
         } else if (ignoreUnknown) {
             return null;
         } else
-            return new IModLocator.ModFileOrException(null, new ModFileLoadingException("Invalid mod file found " + debug));
+            return new IModLocator.ModFileOrException(null, new ModFileLoadingException("Invalid mod file found " + path));
 
         return new IModLocator.ModFileOrException(mod, null);
     }
 
-    protected static JarMetadata loadMetaFromJar(SecureJar jar, ModJarMetadata mjm) {
+    private static JarMetadata loadMetaFromJar(SecureJar jar, ModJarMetadata mjm) {
         var info = jar.moduleDataProvider().open(MODULE_INFO).orElse(null);
         if (info != null) {
             try {
@@ -149,12 +145,6 @@ public abstract class AbstractModProvider implements IModProvider {
             public <T> Optional<T> getConfigElement(String... key) {
                 return Optional.empty();
             }
-
-            @Override
-            public List<? extends IConfigurable> getConfigList(String key) {
-                return Collections.emptyList();
-            }
-
             @Override
             public List<? extends IConfigurable> getConfigList(String... key) {
                 return Collections.emptyList();

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ClasspathLocator.java

@@ -74,8 +74,7 @@ public final class ClasspathLocator extends AbstractModProvider implements IModL
         var ret = new ArrayList<ModFileOrException>();
         for (var path : claimed) {
             // Filter out anything found by the ServiceLoader
-            if (!ModDirTransformerDiscoverer.isServiceProvider(path)
-                && !JarInJarDependencyLocator.isOption(path))
+            if (!ModDirTransformerDiscoverer.isServiceProvider(path))
                 ret.add(createMod(path));
         }
         return ret;
@@ -108,7 +107,7 @@ public final class ClasspathLocator extends AbstractModProvider implements IModL
         return Path.of(URI.create(str));
     }
 
-    static Path getPathFromResource(ClassLoader cl, String resource) {
+    private static Path getPathFromResource(ClassLoader cl, String resource) {
         var url = cl.getResource(resource);
         if (url == null)
             return null;

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/CoreModFile.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) Forge Development LLC and contributors
+ * SPDX-License-Identifier: LGPL-2.1-only
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import net.minecraftforge.forgespi.coremod.ICoreModFile;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.jetbrains.annotations.ApiStatus;
+
+@ApiStatus.Internal
+public final class CoreModFile implements ICoreModFile {
+    private final Path internalPath;
+    private final ModFile file;
+    private final String name;
+
+    CoreModFile(final String name, final Path path, final ModFile file) {
+        this.name = name;
+        this.internalPath = path;
+        this.file = file;
+    }
+
+    @Override
+    public Reader readCoreMod() throws IOException {
+        return Files.newBufferedReader(this.internalPath);
+    }
+
+    @Override
+    public Path getPath() {
+        return this.internalPath;
+    }
+
+    @Override
+    public Reader getAdditionalFile(final String fileName) throws IOException {
+        return Files.newBufferedReader(file.findResource(fileName));
+    }
+
+    @Override
+    public String getOwnerId() {
+        return this.file.getModInfos().get(0).getModId();
+    }
+
+    @Override
+    public String toString() {
+        return "{Name: " + name + ", Owner: " + getOwnerId() + " @ " + getPath() + "}";
+    }
+}

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/JarInJarDependencyLocator.java

@@ -5,39 +5,22 @@
 
 package net.minecraftforge.fml.loading.moddiscovery;
 
-import com.electronwill.nightconfig.core.UnmodifiableConfig;
-import com.electronwill.nightconfig.core.file.FileConfig;
+import com.google.common.collect.ImmutableMap;
 import com.mojang.logging.LogUtils;
-
-import cpw.mods.modlauncher.Launcher;
-import cpw.mods.modlauncher.api.TypesafeMap;
 import net.minecraftforge.fml.loading.EarlyLoadingException;
-import net.minecraftforge.fml.loading.EarlyLoadingException.ExceptionData;
-import net.minecraftforge.fml.loading.FMLEnvironment;
 import net.minecraftforge.forgespi.language.IModInfo;
 import net.minecraftforge.forgespi.locating.IDependencyLocator;
 import net.minecraftforge.forgespi.locating.IModFile;
-import net.minecraftforge.forgespi.locating.IModFile.Type;
-import net.minecraftforge.jarjar.metadata.ContainedJarIdentifier;
-import net.minecraftforge.jarjar.metadata.ContainedJarMetadata;
-import net.minecraftforge.jarjar.metadata.ContainedVersion;
-import net.minecraftforge.jarjar.metadata.MetadataIOHandler;
+import net.minecraftforge.forgespi.locating.ModFileLoadingException;
 import net.minecraftforge.jarjar.selection.JarSelector;
-
-import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
+import org.apache.maven.artifact.versioning.ArtifactVersion;
 import org.apache.maven.artifact.versioning.VersionRange;
 import org.jetbrains.annotations.ApiStatus;
-import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
-import org.slf4j.Marker;
-import org.slf4j.MarkerFactory;
 
-import java.io.IOException;
 import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.lang.module.ModuleDescriptor;
 import java.net.URI;
-import java.net.URISyntaxException;
 import java.nio.file.FileSystem;
 import java.nio.file.FileSystems;
 import java.nio.file.Files;
@@ -45,20 +28,14 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
-import java.util.StringJoiner;
-import java.util.TreeMap;
-import java.util.jar.Attributes;
-import java.util.jar.JarFile;
-import java.util.jar.Manifest;
+import java.util.Optional;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 @ApiStatus.Internal
 public class JarInJarDependencyLocator extends AbstractModProvider implements IDependencyLocator {
-    private static final String ROIMFS = "roimfs";
     private static final String COLOR_CODE = "\u00a7";
     private static final String RESET  = COLOR_CODE + "r";
     private static final String YELLOW = COLOR_CODE + "e";
@@ -66,238 +43,32 @@ public class JarInJarDependencyLocator extends AbstractModProvider implements ID
     private static final String GREEN  = COLOR_CODE + "2";
 
     private static final Logger LOGGER = LogUtils.getLogger();
-    private static final Marker MARKER = MarkerFactory.getMarker("JAR-JAR"); // LogMarkers.SCAN;
-
-    private static final Map<Path, Option> OPTIONS = new HashMap<>();
-    private static volatile boolean optionsLoaded = false;
-
-    private static final Attributes.Name MIXIN_CONFIGS_ATTR = new Attributes.Name("MixinConfigs");
-    private static final Attributes.Name MIXIN_CONNECTOR_ATTR = new Attributes.Name("MixinConnector");
-    private static final ContainedJarMetadata MIXIN_EXTRAS_DEPENDENCY = makeMixinExtraDependency();
-
-    private static ContainedJarMetadata makeMixinExtraDependency() {
-        VersionRange range = null;
-        try {
-            range = VersionRange.createFromVersionSpec("[0,)");
-        } catch (InvalidVersionSpecificationException e) {
-            throw new RuntimeException("Failed to create version range for mixinextras-forge dependency", e);
-        }
-
-        return new ContainedJarMetadata(
-            new ContainedJarIdentifier("io.github.llamalad7", "mixinextras-forge"),
-            new ContainedVersion(range, null),
-            null, false
-        );
-    }
 
     @Override
     public String name() {
         return "JarInJar";
     }
 
-    private int fsID = 0;
-    private synchronized int nextId() {
-        return fsID++;
-    }
-
     @Override
     public List<IModFile> scanMods(Iterable<IModFile> loadedMods) {
-        var mods = new ArrayList<IModFile>();
-        loadedMods.forEach(mods::add);
+        final List<IModFile> sources = new ArrayList<>();
+        loadedMods.forEach(sources::add);
 
-        var selector = new Selector(mods);
+        var dependenciesToLoad = JarSelector.detectAndSelect(
+            sources,
+            this::loadResourceFromModFile,
+            this::loadModFileFrom,
+            this::identifyMod,
+            this::exception
+        );
 
-        // Add a synthetic Mixin-Extras dependency if we detect anyone using Mixin
-        if (anyMixinsLoaded(mods)) {
-            if (!selector.isRequired(MIXIN_EXTRAS_DEPENDENCY.identifier()))
-                selector.addRequirement(MIXIN_EXTRAS_DEPENDENCY);
-        } else if (selector.entries.size() == mods.size()) {
+        if (dependenciesToLoad.isEmpty()) {
             LOGGER.info("No dependencies to load found. Skipping!");
             return Collections.emptyList();
         }
 
-        loadOptions();
-
-        // Ideally, the json would be in order so we only have to loop once. But its written this way just in case.
-        var seen = new HashSet<Option>();
-        var added = false;
-        do {
-            added = false;
-            for (var entry : OPTIONS.values()) {
-                if (seen.contains(entry) || !selector.isRequired(entry.meta.identifier()))
-                    continue;
-
-                seen.add(entry);
-
-                entry.addTo(selector);
-
-                if (entry.deps != null && !entry.deps.isEmpty()) {
-                    added = true;
-                    for (var dep : entry.deps)
-                        selector.addRequirement(dep);
-                }
-            }
-        } while (added);
-
-        var selected = selector.select();
-
-        if (LOGGER.isDebugEnabled()) {
-            var ids = new TreeMap<String, List<Entry>>();
-            for (var entry : selector.entries.values()) {
-                if (entry != FAILED && entry.coord != null)
-                    ids.computeIfAbsent(entry.coord, id -> new ArrayList<>()).add(entry);
-            }
-
-            for (var entry : ids.entrySet()) {
-                LOGGER.info(MARKER, "JarJar Candidated for {}", entry.getKey());
-                Collections.sort(entry.getValue());
-                for (var option : entry.getValue())
-                    LOGGER.info(MARKER, "\t{}{}", selected.contains(option) ? '*' : ' ', option);
-            }
-        }
-
-        if (selected.isEmpty()) {
-            LOGGER.info("No dependencies to load found. Skipping!");
-            return Collections.emptyList();
-        }
-
-        /* Since Java 11, the JRE decompresses all zip files to memory when getting a ByteChannel for them.
-         * JarJar only targets Minecraft 1.18+ which is Java17+ Which means we can exploit the fact that
-         * these are Disjointed file systems, and close all unselected libraries.
-         *
-         * https://github.com/openjdk/jdk11u/blob/25a9b9e5594e88c9e1e66f95c7ca45d5a9da8854/src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystem.java#L703
-         *
-         * Combined with the fact that the JarJarFileSystem has always simply called into FileSystems.newFileSystem for its wrapped targets.
-         * https://github.com/MinecraftForge/JarJar/blame/b39b2051439c81519d826d38898778bf3081356f/src/main/java/net/minecraftforge/jarjar/nio/pathfs/PathFileSystem.java#L38
-         *
-         * This effectively means that JarJar has ALWAYS been a wrapper around in-memory copies of every jar it scans.
-         *
-         * It also never closes these FileSystems, which potentially means they are leaked if the GC can't inherently GC them.
-         *
-         * Ideally we would extract these contained jars to a temp folder, so that we can use the nice optimizations Java has for ZipFile/JarFile.
-         * But in order to do that we would need to write the file to a place that could potentially have conflicts.
-         * To resolve those conflicts we should take a hint out of maven/gradle/minecraft's book and key the filepath based on a hash of the file being extracted.
-         * However, because that hash is no available in existing metadata we would need to re-calculate it.
-         *
-         * To do it in an efficient way we I needed to be able to share the single opened FileSystem with both the SecureJar implementation, and with our recursive search.
-         * So I use my new ReadOnlyInMemoryFileSystem which is specifically designed to use the same backing array for the JarInJar search as it does with the resulting dependency
-         * selected SecureJars.
-         *
-         * This means that if we wanted to we could rather efficiently calculate a hash for extracting the file. However, it also means that we don't have to extract to file to
-         * support ZipFileSystem caching properly. So as long as we are okay with not using the JRE's optimized ZipFile implementation, or we want to support legacy JarInJar metadata,
-         * using this efficient in memory file system is the best option performance wise. Extracting the files during launch without an efficient caching/unique identifier system
-         * would incur a lot of Disc IO which can be super slow depending on your setup.
-         *
-         * So, it is a stated goal of our future re-write to extract files into a cache directory to gain the benefits of JRE optimizations, using a FileSystem much simpler then
-         * the existing JarInJarFileSystem is good enough.
-         */
-
-        // Lets close all unselected FileSystems
-        var wasSelected = new HashSet<>(selected);
-        for (var entry : selector.entries.values())
-            entry.cleanup(wasSelected.contains(entry));
-
-        LOGGER.info(MARKER, "Found {} dependencies adding them to mods collection", selected.size());
-        var ret = new ArrayList<IModFile>(selected.size());
-
-        // Now lets build the actual mod files
-        for (var entry : selected) {
-            try {
-                var root = entry.getFinalPath();
-                var mod = createMod(root, false, entry.type.name());
-
-                if (mod.ex() != null)
-                    throw fail("Failed to load JarInJar file " + entry, mod.ex());
-
-                ret.add(mod.file());
-            } catch (EarlyLoadingException e) {
-                throw e;
-            } catch (Throwable e) {
-                throw fail("Failed to load JarInJar file " + entry, e);
-            }
-        }
-
-        return ret;
-    }
-
-    private static Boolean anyMixinsLoaded = null;
-    private static boolean anyMixinsLoaded(List<IModFile> mods) {
-        var ret = anyMixinsLoaded;
-        if (ret != null) return ret;
-
-        if (!FMLEnvironment.production
-                && Launcher.INSTANCE.blackboard().get(TypesafeMap.Key.getOrCreate(Launcher.INSTANCE.blackboard(), "isMixinEnabledInDev", Boolean.class)).orElse(false)) {
-            anyMixinsLoaded = true;
-            return true;
-        }
-
-        for (var mod : mods) {
-            var attributes = mod.getSecureJar().moduleDataProvider().getManifest().getMainAttributes();
-            if (attributes.getValue(MIXIN_CONFIGS_ATTR) != null || attributes.getValue(MIXIN_CONNECTOR_ATTR) != null) {
-                anyMixinsLoaded = true;
-                return true;
-            }
-        }
-
-        anyMixinsLoaded = false;
-        return false;
-    }
-
-    private record Options(List<OptionMetadata> options) {}
-    private record OptionMetadata(String resource, Type layer, String id, List<ContainedJarMetadata> deps, ContainedJarMetadata meta, boolean nested) {}
-
-    private static void loadOptions() {
-        if (optionsLoaded)
-            return;
-
-        synchronized (OPTIONS) {
-            if (optionsLoaded)
-                return;
-
-            optionsLoaded = true;
-
-            var self = JarInJarDependencyLocator.class;
-
-            try (var stream = self.getModule().getResourceAsStream("/jarjar_options.json")) {
-                if (stream == null) {
-                    LOGGER.error(MARKER, "Failed to find jarjar_options.json");
-                    return;
-                }
-
-                var meta = MetadataIOHandler.getGson().fromJson(new InputStreamReader(stream), Options.class);
-                //var meta = MetadataIOHandler.fromStream(stream).orElse(null);
-                if (meta == null) {
-                    LOGGER.error(MARKER, "Corrupted jarjar_options.json");
-                    return;
-                }
-
-                for (var jar : meta.options()) {
-                    Path path = ClasspathLocator.getPathFromResource(self.getClassLoader(), jar.resource());
-                    if (path == null) {
-                        LOGGER.error(MARKER, "Failed to find JarJar option for {}", jar.resource());
-                        continue;
-                    }
-
-                    LOGGER.debug(MARKER, "Found JarJar Option: {}", path.toAbsolutePath());
-                    if (jar.nested())
-                        OPTIONS.put(path, new NestedOption(jar.id(), path, jar.layer(), jar.meta(), jar.deps()));
-                    else
-                        OPTIONS.put(path, new Option(jar.id(), path, jar.layer(), jar.meta(), jar.deps()));
-                }
-            } catch (Throwable e) {
-                LOGGER.error(MARKER, "Failed to read JarJar Options file", e);
-            }
-        }
-    }
-
-    static boolean isOption(Path path) {
-        loadOptions();
-        return OPTIONS.containsKey(path);
-    }
-
-    private static EarlyLoadingException fail(String message, @Nullable Throwable cause) {
-        LOGGER.error(MARKER, message);
-        return new EarlyLoadingException(message, cause, Collections.emptyList());
+        LOGGER.info("Found {} dependencies adding them to mods collection", dependenciesToLoad.size());
+        return dependenciesToLoad;
     }
 
     @Override
@@ -305,7 +76,89 @@ public class JarInJarDependencyLocator extends AbstractModProvider implements ID
         return IModFile.Type.GAMELIBRARY.name();
     }
 
-    protected static String identifyMod(IModFile modFile) {
+    protected Optional<IModFile> loadModFileFrom(IModFile file, Path path) {
+        try {
+            final Path pathInModFile = file.findResource(path.toString());
+            final URI filePathUri = new URI("jij:" + (pathInModFile.toAbsolutePath().toUri().getRawSchemeSpecificPart())).normalize();
+            final Map<String, ?> outerFsArgs = ImmutableMap.of("packagePath", pathInModFile);
+            final FileSystem zipFS = FileSystems.newFileSystem(filePathUri, outerFsArgs);
+            final Path pathInFS = zipFS.getPath("/");
+            final IModFile.Type parentType = file.getType();
+            final String modType;
+            if (parentType == IModFile.Type.LIBRARY || parentType == IModFile.Type.LANGPROVIDER) {
+                modType = IModFile.Type.LIBRARY.name();
+            } else {
+                modType = IModFile.Type.GAMELIBRARY.name();
+            }
+            return Optional.of(createMod(pathInFS, false, modType).file());
+        } catch (Exception e) {
+            LOGGER.error("Failed to load mod file {} from {}", path, file.getFileName());
+            final RuntimeException exception = new ModFileLoadingException("Failed to load mod file " + file.getFileName());
+            exception.initCause(e);
+            throw exception;
+        }
+    }
+
+    protected EarlyLoadingException exception(Collection<JarSelector.ResolutionFailureInformation<IModFile>> failedDependencies) {
+        final List<EarlyLoadingException.ExceptionData> errors = failedDependencies.stream()
+               .filter(entry -> !entry.sources().isEmpty()) //Should never be the case, but just to be sure
+               .map(JarInJarDependencyLocator::buildExceptionData)
+               .toList();
+
+        return new EarlyLoadingException(failedDependencies.size() + " Dependency restrictions were not met.", null, errors);
+    }
+
+    @NotNull
+    private static EarlyLoadingException.ExceptionData buildExceptionData(JarSelector.ResolutionFailureInformation<IModFile> entry) {
+        return new EarlyLoadingException.ExceptionData(
+                getErrorTranslationKey(entry),
+                entry.identifier().group() + ":" + entry.identifier().artifact(),
+                entry.sources()
+                     .stream()
+                     .flatMap(JarInJarDependencyLocator::getModWithVersionRangeStream)
+                     .map(JarInJarDependencyLocator::formatError)
+                     .collect(Collectors.joining(", "))
+        );
+    }
+
+    @NotNull
+    private static String getErrorTranslationKey(JarSelector.ResolutionFailureInformation<IModFile> entry) {
+        return entry.failureReason() == JarSelector.FailureReason.VERSION_RESOLUTION_FAILED ?
+                       "fml.dependencyloading.conflictingdependencies" :
+                       "fml.dependencyloading.mismatchedcontaineddependencies";
+    }
+
+    @NotNull
+    private static Stream<ModWithVersionRange> getModWithVersionRangeStream(JarSelector.SourceWithRequestedVersionRange<IModFile> file) {
+        return file.sources()
+                   .stream()
+                   .map(IModFile::getModFileInfo)
+                   .flatMap(modFileInfo -> modFileInfo.getMods().stream())
+                   .map(modInfo -> new ModWithVersionRange(modInfo, file.requestedVersionRange(), file.includedVersion()));
+    }
+
+    protected Optional<InputStream> loadResourceFromModFile(IModFile modFile, Path path) {
+        try {
+            var pathInModFile = modFile.findResource(path.toString());
+            if (!Files.exists(pathInModFile)) {
+                LOGGER.debug("Failed to load resource {} from {}, it does not contain dependency information.", path, modFile.getFileName());
+                return Optional.empty();
+            }
+            return Optional.of(Files.newInputStream(pathInModFile));
+        } catch (Exception e) {
+            LOGGER.error("Failed to load resource {} from mod {}, cause {}", path, modFile.getFileName(), e);
+            return Optional.empty();
+        }
+    }
+
+    @NotNull
+    private static String formatError(ModWithVersionRange modWithVersionRange){
+        return YELLOW + modWithVersionRange.modInfo().getModId() + RESET + " - " +
+               RED + modWithVersionRange.versionRange().toString() + RESET + " - " +
+               GREEN + modWithVersionRange.artifactVersion().toString() + RESET;
+    }
+
+    protected String identifyMod(IModFile modFile) {
         if (modFile.getModFileInfo() != null && !modFile.getModInfos().isEmpty())
             return modFile.getModInfos().stream().map(IModInfo::getModId).collect(Collectors.joining());
 
@@ -316,377 +169,5 @@ public class JarInJarDependencyLocator extends AbstractModProvider implements ID
         return modFile.getFileName();
     }
 
-    private static final Entry FAILED = new Entry("FAILED ENTRY", Path.of(""), Type.LIBRARY, null);
-    private static sealed class Entry implements Comparable<Entry> {
-        final String id;
-        final Path path;
-        final Type type;
-        final @Nullable String coord;
-
-        private Entry(String id, Path path, Type type, @Nullable String coord) {
-            this.id = id;
-            this.path = path;
-            this.type = type;
-            this.coord = coord;
-        }
-
-        Path getFinalPath() {
-            return path;
-        }
-
-        void cleanup(boolean selected) {
-        }
-
-        @Override
-        public String toString() {
-            if (path.getFileName() == null)
-                return path.toUri().toString();
-            return path.getFileName().toString();
-        }
-
-        @Nullable
-        Path getResource(String path) {
-            return null;
-        }
-
-        @Override
-        public int compareTo(Entry o) {
-            return o.toString().compareTo(toString());
-        }
-    }
-
-    private static final class ModEntry extends Entry {
-        private final IModFile mod;
-
-        ModEntry(IModFile mod) {
-            super(identifyMod(mod), mod.getFilePath(), mod.getType(), null);
-            this.mod = mod;
-        }
-
-        @Override
-        @Nullable
-        Path getResource(String path) {
-            return mod.findResource(path);
-        }
-    }
-
-    private static sealed class Option extends Entry {
-        final ContainedJarMetadata meta;
-        final List<ContainedJarMetadata> deps;
-
-        private Option(String id, Path path, Type type, ContainedJarMetadata meta, List<ContainedJarMetadata> deps) {
-            super(id, path, type, meta.identifier().group() + ':' + meta.identifier().artifact());
-            this.meta = meta;
-            this.deps = deps;
-        }
-
-        public void addTo(Selector selector) {
-            selector.option(this, meta);
-        }
-    }
-
-    private static final class NestedOption extends Option {
-        private FileSystem zip;
-        private Path root;
-
-        private NestedOption(String id, Path path, Type type, ContainedJarMetadata meta, List<ContainedJarMetadata> deps) {
-            super(id, path, type, meta, deps);
-        }
-
-        @Override
-        public void addTo(Selector selector) {
-            super.addTo(selector);
-            selector.add(this);
-        }
-
-        @Override
-        void cleanup(boolean selected) {
-            if (this.zip != null) {
-                try {
-                    zip.close();
-                } catch (IOException e) {
-                    LOGGER.error(MARKER, "Failed to close unselected FileSystem {}", this, e);
-                }
-            }
-        }
-
-        @Nullable
-        Path getResource(String path) {
-            if (zip == null) {
-                try {
-                    this.zip = FileSystems.newFileSystem(this.path);
-                    this.root = zip.getRootDirectories().iterator().next();
-                } catch (IOException e) {
-                    LOGGER.error(MARKER, "Failed to open FileSystem for option root {}", this, e);
-                    return null;
-                }
-            }
-
-            var target = root.resolve(path);
-            if (Files.exists(target))
-                return target;
-
-            return null;
-        }
-    }
-
-
-    private static final class Nested extends Entry {
-        private final Entry parent;
-        private final String nestedPath;
-        private final Path zipPath;
-
-        Nested(String id, Path path, Type type, String coords, Entry parent, String nestedPath, Path zipPath) {
-            super(id, path, type, coords);
-            this.parent = parent;
-            this.nestedPath = nestedPath;
-            this.zipPath = zipPath;
-        }
-
-        /*
-         * Due to a bug in Mixin, anything that is not on the DefaultFileSystem MUST be a directory.
-         * Or else it can't resolve resources correctly. So for anything we put on the roimfs we need
-         * to return the nested zip file system.
-         *
-         * This will be an annoying to backport, but we can cross that bridge when we come to it.
-         *
-         * See: https://github.com/SpongePowered/Mixin/blob/4053421aa10aaac6127d969028a29c94fe3054f6/src/main/java/org/spongepowered/asm/launch/platform/MainAttributes.java#L102
-         */
-        @Override
-        public Path getFinalPath() {
-            return zipPath;
-        }
-
-        @Override
-        void cleanup(boolean selected) {
-            if (selected)
-                return;
-
-            LOGGER.info(MARKER, "Closeing unselected FileSystem {}", this);
-            try {
-                zipPath.getFileSystem().close();
-                path.getFileSystem().close();
-            } catch (IOException e) {
-                LOGGER.error(MARKER, "Failed to close unselected FileSystem {}", this, e);
-            }
-        }
-
-        @Override
-        @Nullable
-        Path getResource(String path) {
-            return zipPath.resolve(path);
-        }
-
-        @Override
-        public String toString() {
-            return parent + "!/" + nestedPath;
-        }
-    }
-
-    private record Key(Entry parent, String path) {}
-
-    private final class Selector extends JarSelector<Entry> {
-        private final HashMap<Key, Entry> entries = new HashMap<>();
-        private final HashMap<Entry, HashMap<String, String>> children = new HashMap<>();
-
-        private Selector(Iterable<IModFile> mods) {
-            for (var mod : mods)
-                this.force(new ModEntry(mod));
-        }
-
-        @Override
-        public void force(Entry entry) {
-            super.force(entry);
-            entries.put(new Key(entry, ""), entry);
-        }
-
-        @Override
-        public void option(Entry entry, ContainedJarMetadata meta) {
-            super.option(entry, meta);
-            entries.put(new Key(entry, ""), entry);
-        }
-
-        @Override
-        public void add(Entry entry) {
-            super.add(entry);
-            entries.put(new Key(entry, ""), entry);
-        }
-
-        @Override
-        @Nullable
-        protected InputStream getResource(Entry source, String path) {
-            try {
-                Path target = source.getResource(path);
-                if (target == null || !Files.exists(target)) {
-                    LOGGER.debug(MARKER, "Failed to load resource {} from {}, it does not contain dependency information.", path, source);
-                    return null;
-                }
-
-                // Read the metadata file and store identifiers so we can group them later.
-                if (JarSelector.CONTAINED_JARS_METADATA_PATH.equals(path)) {
-                    try (var is = Files.newInputStream(target)) {
-                        var meta = MetadataIOHandler.fromStream(is).orElse(null);
-                        if (meta == null)
-                            return Files.newInputStream(target);
-                        var children = new HashMap<String, String>();
-                        for (var child : meta.jars())
-                            children.put(child.path().replace('\\', '/'), child.identifier().group() + ':' + child.identifier().artifact());
-                        this.children.put(source, children);
-                    }
-                }
-
-                return Files.newInputStream(target);
-            } catch (Exception e) {
-                LOGGER.error(MARKER, "Failed to load resource {} from {}, cause {}", path, source, e);
-                return null;
-            }
-        }
-
-
-        @Override
-        protected Entry getNested(Entry source, String path) {
-            var cleaned = path.replace('\\', '/');
-            var key = new Key(source, cleaned);
-            var entry = entries.get(key);
-            if (entry == null) {
-                entry = createNested(source, path, cleaned);
-                if (entry == null)
-                    entry = FAILED;
-                entries.put(key, entry);
-            }
-            return entry == FAILED ? null : entry;
-        }
-
-        private Entry createNested(Entry source, String path, String cleaned) {
-            var targetPath = source.getResource(path);
-
-            if (targetPath == null || !Files.isRegularFile(targetPath))
-                return null;
-
-            Path roimfsPath = null;
-            Path zipPath = null;
-            try {
-                // Lets copy the uncompressed file to memory, and then create a ReadOnlyInMemorryFileSystem for it, this allows us to reference it by URI.
-                // Which is needed because a lot of things require navigation via URI.
-                // And ZipFileSystem only caches the FileSystem instance when accessed via URI.
-                byte[] data = Files.readAllBytes(targetPath);
-                String filename = targetPath.getFileName().toString();
-                URI uri = new URI(ROIMFS, "jar-jar-" + nextId() + "/" + filename, null);
-                var roimfs = FileSystems.newFileSystem(uri, Collections.singletonMap("data", data));
-                roimfsPath = roimfs.getPath(filename);
-                var zip = FileSystems.newFileSystem(new URI("jar:" + roimfsPath.toUri()), Collections.emptyMap());
-                zipPath = zip.getRootDirectories().iterator().next(); // Get first root, which on ZipFileSystem is the only root
-            } catch (IOException | URISyntaxException e) {
-                LOGGER.error(MARKER, "Failed to create FileSystem for nested jar {}", source, e);
-                return null;
-            }
-
-            var mf = new Manifest();
-            var mfPath = zipPath.resolve(JarFile.MANIFEST_NAME);
-            if (Files.exists(mfPath)) {
-                try (var is = Files.newInputStream(mfPath)) {
-                    mf = new Manifest(is);
-                } catch (IOException e) {
-                    LOGGER.error(MARKER, "Failed to read manifest from {}", source, e);
-                }
-            }
-
-            IModFile.Type type = null;
-            String id = null;
-            var tomlPath = zipPath.resolve(MODS_TOML);
-            if (Files.exists(tomlPath)) {
-                var cfg = FileConfig.builder(tomlPath).build();
-                cfg.load();
-                cfg.close();
-                if (cfg.getOrElse("mods", null) instanceof Collection collection) {
-                    @SuppressWarnings("unchecked")
-                    var mods = (Collection<UnmodifiableConfig>)collection;
-                    if (!mods.isEmpty()) {
-                        var first = mods.iterator().next();
-                        var modId = first.getOrElse("modId", null);
-                        if (modId instanceof String str)
-                            id = str;
-                    }
-                }
-                var value = mf.getMainAttributes().getValue(ModFile.TYPE);
-                if (value != null)
-                    type = IModFile.Type.valueOf(value);
-                else
-                    type = IModFile.Type.MOD;
-            } else {
-                var value = mf.getMainAttributes().getValue(ModFile.TYPE);
-                if (value != null)
-                    type = IModFile.Type.valueOf(value);
-                else {
-                    // No mods.toml, no entry value, so decide based on the container's type
-                    if (source.type == IModFile.Type.LIBRARY || source.type == IModFile.Type.LANGPROVIDER)
-                        type = IModFile.Type.LIBRARY;
-                    else
-                        type = IModFile.Type.GAMELIBRARY;
-                }
-            }
-
-            if (id == null) {
-                var modulePath = zipPath.resolve(MODULE_INFO);
-                if (Files.exists(modulePath)) {
-                    try (var is = Files.newInputStream(modulePath)) {
-                        var module = ModuleDescriptor.read(is);
-                        id = module.name();
-                    } catch (IOException e) {
-                        LOGGER.error(MARKER, "Failed to read module-info.class from {}", source, e);
-                    }
-                }
-            }
-
-            if (id == null)
-                id = mf.getMainAttributes().getValue("Automatic-Module-Name");
-
-            if (id == null)
-                id = Path.of(path).getFileName().toString();
-
-            String coords = null;
-            var child = this.children.get(source);
-            if (child != null)
-                coords = child.get(cleaned);
-
-            return new Nested(id, roimfsPath, type, coords, source, cleaned, zipPath);
-        }
-
-        @Override
-        protected String getIdentifier(Entry entry) {
-            return entry.id;
-        }
-
-        @Override
-        protected Throwable getFailureException(Collection<ResolutionFailureInformation<Entry>> failures) {
-            var errors = new ArrayList<ExceptionData>();
-            for (var failure : failures) {
-                var message = failure.failureReason() == JarSelector.FailureReason.VERSION_RESOLUTION_FAILED ? "fml.dependencyloading.conflictingdependencies" : "fml.dependencyloading.mismatchedcontaineddependencies";
-                var joiner = new StringJoiner(", ");
-                for (var source : failure.sources()) {
-                    String paths = null;
-                    if (source.sources().size() == 0) {
-                        paths = "[No Sources]";
-                    } else if (source.sources().size() == 1) {
-                        var entry = source.sources().iterator().next();
-                        paths = entry.toString();
-                    } else {
-                        var j = new StringJoiner(", ", "[", "]");
-                        for (var entry : source.sources())
-                            j.add(entry.toString());
-                        paths = j.toString();
-                    }
-
-                    var error = YELLOW + paths + RESET + " - " +
-                                RED + source.requestedVersionRange() + RESET + " - " +
-                                GREEN + source.includedVersion() + RESET;
-                    joiner.add(error);
-                }
-
-                errors.add(new ExceptionData(message, failure.identifier().group() + ":" + failure.identifier().artifact(), joiner.toString()));
-            }
-
-            return new EarlyLoadingException(failures.size() + " Dependency restrictions were not met.", null, errors);
-        }
-    }
+    private record ModWithVersionRange(IModInfo modInfo, VersionRange versionRange, ArtifactVersion artifactVersion) {}
 }

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/MinecraftLocator.java

@@ -43,10 +43,10 @@ public final class MinecraftLocator extends AbstractModProvider implements IModL
         mods.set("modId", "minecraft");
         mods.set("version", FMLLoader.versionInfo().mcVersion());
         mods.set("displayName", "Minecraft");
-        //mods.set("logoFile", "mcplogo.png");
-        //mods.set("credits", "Mojang, deobfuscated by MCP");
-        //mods.set("authors", "MCP: Searge,ProfMobius,IngisKahn,Fesh0r,ZeuX,R4wk,LexManos,Bspkrs");
-        mods.set("description", "The base Minecraft game, published by Mojang decompiled and deobfuscated by Forge");
+        mods.set("logoFile", "mcplogo.png");
+        mods.set("credits", "Mojang, deobfuscated by MCP");
+        mods.set("authors", "MCP: Searge,ProfMobius,IngisKahn,Fesh0r,ZeuX,R4wk,LexManos,Bspkrs");
+        mods.set("description", "Minecraft, decompiled and deobfuscated with MCP technology");
         conf.set("mods", List.of(mods));
 
         var configWrapper = new NightConfigWrapper(conf);

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModDiscoverer.java

@@ -5,6 +5,7 @@
 
 package net.minecraftforge.fml.loading.moddiscovery;
 
+import com.google.common.collect.ImmutableList;
 import com.mojang.logging.LogUtils;
 import cpw.mods.modlauncher.Launcher;
 import cpw.mods.modlauncher.api.IModuleLayerManager;
@@ -34,36 +35,41 @@ import java.util.ServiceLoader;
 import java.util.stream.Collectors;
 
 @ApiStatus.Internal
-public final class ModDiscoverer {
-    private ModDiscoverer() {}
-
+public class ModDiscoverer {
     private static final Logger LOGGER = LogUtils.getLogger();
+    private final ServiceLoader<IModLocator> modLocators;
+    private final ServiceLoader<IDependencyLocator> dependencyLocators;
+    private final List<IModLocator>          modLocatorList;
+    private final List<IDependencyLocator>   dependencyLocatorList;
 
-    @SuppressWarnings("removal")
-    public static ModValidator discoverMods(Map<String, ?> arguments) {
+    public ModDiscoverer(Map<String, ?> arguments) {
         Launcher.INSTANCE.environment().computePropertyIfAbsent(Environment.Keys.MODDIRECTORYFACTORY.get(), v->ModsFolderLocator::new);
         Launcher.INSTANCE.environment().computePropertyIfAbsent(Environment.Keys.PROGRESSMESSAGE.get(), v-> StartupNotificationManager.locatorConsumer().orElseGet(()-> s->{}));
         final var moduleLayerManager = Launcher.INSTANCE.environment().findModuleLayerManager().orElseThrow();
-        ServiceLoader<IModLocator> modLocators = ServiceLoader.load(moduleLayerManager.getLayer(IModuleLayerManager.Layer.SERVICE).orElseThrow(), IModLocator.class);
-        ServiceLoader<IDependencyLocator> dependencyLocators = ServiceLoader.load(moduleLayerManager.getLayer(IModuleLayerManager.Layer.SERVICE).orElseThrow(), IDependencyLocator.class);
-        List<IModLocator> modLocatorList = ServiceLoaderUtils.streamWithErrorHandling(modLocators, sce -> LOGGER.error("Failed to load mod locator list", sce)).toList();
+        modLocators = ServiceLoader.load(moduleLayerManager.getLayer(IModuleLayerManager.Layer.SERVICE).orElseThrow(), IModLocator.class);
+        dependencyLocators = ServiceLoader.load(moduleLayerManager.getLayer(IModuleLayerManager.Layer.SERVICE).orElseThrow(), IDependencyLocator.class);
+        modLocatorList = ServiceLoaderUtils.streamServiceLoader(()-> modLocators, sce->LOGGER.error("Failed to load mod locator list", sce)).collect(Collectors.toList());
         for (IModLocator iModLocator : modLocatorList) {
             iModLocator.initArguments(arguments);
         }
-        List<IDependencyLocator> dependencyLocatorList = ServiceLoaderUtils.streamWithErrorHandling(dependencyLocators, sce -> LOGGER.error("Failed to load dependency locator list", sce)).toList();
+        dependencyLocatorList = ServiceLoaderUtils.streamServiceLoader(()-> dependencyLocators, sce->LOGGER.error("Failed to load dependency locator list", sce)).collect(Collectors.toList());
         for (IDependencyLocator l : dependencyLocatorList) {
             l.initArguments(arguments);
         }
-        if (LOGGER.isDebugEnabled(LogMarkers.CORE)) {
+        if (LOGGER.isDebugEnabled(LogMarkers.CORE))
+        {
             LOGGER.debug(LogMarkers.CORE, "Found Mod Locators : {}", modLocatorList.stream()
-                    .map(modLocator -> "(%s:%s)".formatted(modLocator.name(),
-                            modLocator.getClass().getPackage().getImplementationVersion())).collect(Collectors.joining(",")));
+                                                                       .map(modLocator -> "(%s:%s)".formatted(modLocator.name(),
+                                                                         modLocator.getClass().getPackage().getImplementationVersion())).collect(Collectors.joining(",")));
 
             LOGGER.debug(LogMarkers.CORE, "Found Dependency Locators : {}", dependencyLocatorList.stream()
-                    .map(dependencyLocator -> "(%s:%s)".formatted(dependencyLocator.name(),
-                            dependencyLocator.getClass().getPackage().getImplementationVersion())).collect(Collectors.joining(",")));
+                                                                       .map(dependencyLocator -> "(%s:%s)".formatted(dependencyLocator.name(),
+                                                                         dependencyLocator.getClass().getPackage().getImplementationVersion())).collect(Collectors.joining(",")));
         }
+    }
 
+    @SuppressWarnings("removal")
+    public ModValidator discoverMods() {
         LOGGER.debug(LogMarkers.SCAN,"Scanning for mods and other resources to load. We know {} ways to find mods", modLocatorList.size());
         List<ModFile> loadedFiles = new ArrayList<>();
         List<EarlyLoadingException.ExceptionData> discoveryErrorData = new ArrayList<>();
@@ -111,7 +117,7 @@ public final class ModDiscoverer {
                 }
 
                 LOGGER.debug(LogMarkers.SCAN, "Locator {} found {} valid mod files", locator, locatedFiles.size());
-                handleLocatedFiles(loadedFiles, locatedFiles, locator);
+                handleLocatedFiles(loadedFiles, locatedFiles);
             } catch (InvalidModFileException imfe) {
                 // We don't generally expect this exception, since it should come from the candidates stream above and be handled in the Locator, but just in case.
                 LOGGER.error(LogMarkers.SCAN, "Locator {} found an invalid mod file {}", locator, imfe.getBrokenFile(), imfe);
@@ -125,7 +131,8 @@ public final class ModDiscoverer {
         //First processing run of the mod list. Any duplicates will cause resolution failure and dependency loading will be skipped.
         Map<IModFile.Type, List<ModFile>> modFilesMap = new EnumMap<>(IModFile.Type.class);
         try {
-            final UniqueModListBuilder.UniqueModListData uniqueModsData = UniqueModListBuilder.buildUniqueList(loadedFiles);
+            final UniqueModListBuilder modsUniqueListBuilder = new UniqueModListBuilder(loadedFiles);
+            final UniqueModListBuilder.UniqueModListData uniqueModsData = modsUniqueListBuilder.buildUniqueList();
 
             //Grab the temporary results.
             //This allows loading to continue to a base state, in case dependency loading fails.
@@ -145,10 +152,14 @@ public final class ModDiscoverer {
             for (IDependencyLocator locator : dependencyLocatorList) {
                 try {
                     LOGGER.debug(LogMarkers.SCAN,"Trying locator {}", locator);
-                    final List<IModFile> locatedMods = List.copyOf(loadedFiles);
+                    final List<IModFile> locatedMods = ImmutableList.copyOf(loadedFiles);
 
                     var locatedFiles = locator.scanMods(locatedMods);
-                    handleLocatedFiles(loadedFiles, locatedFiles, locator);
+                    if (locatedFiles.stream().anyMatch(file -> !(file instanceof ModFile))) {
+                        LOGGER.error(LogMarkers.SCAN, "A dependency locator returned a file which is not a ModFile instance!. They will be skipped!");
+                    }
+
+                    handleLocatedFiles(loadedFiles, locatedFiles);
                 }
                 catch (EarlyLoadingException exception) {
                     LOGGER.error(LogMarkers.SCAN, "Failed to load dependencies with locator {}", locator, exception);
@@ -158,7 +169,8 @@ public final class ModDiscoverer {
 
             //Second processing run of the mod list. Any duplicates will cause resolution failure and only the mods list will be loaded.
             try {
-                final UniqueModListBuilder.UniqueModListData uniqueModsAndDependenciesData = UniqueModListBuilder.buildUniqueList(loadedFiles);
+                final UniqueModListBuilder modsAndDependenciesUniqueListBuilder = new UniqueModListBuilder(loadedFiles);
+                final UniqueModListBuilder.UniqueModListData uniqueModsAndDependenciesData = modsAndDependenciesUniqueListBuilder.buildUniqueList();
 
                 //We now only need the mod files map, not the list.
                 modFilesMap = uniqueModsAndDependenciesData.modFiles().stream()
@@ -181,14 +193,11 @@ public final class ModDiscoverer {
         return validator;
     }
 
-    private static void handleLocatedFiles(final List<ModFile> loadedFiles, final List<IModFile> locatedFiles, final Object locator) {
-        for (IModFile mf : locatedFiles) {
-            if (mf instanceof ModFile modFile) {
-                LOGGER.info(LogMarkers.SCAN, "Found mod file {} of type {} with provider {}", mf.getFileName(), mf.getType(), mf.getProvider());
-                loadedFiles.add(modFile);
-            } else {
-                LOGGER.error(LogMarkers.SCAN, "Skipping mod file {} found by {}, as it was not a ModFile instance!", mf.getFileName(), locator);
-            }
+    private static void handleLocatedFiles(final List<ModFile> loadedFiles, final List<IModFile> locatedFiles) {
+        var locatedModFiles = locatedFiles.stream().filter(ModFile.class::isInstance).map(ModFile.class::cast).toList();
+        for (IModFile mf : locatedModFiles) {
+            LOGGER.info(LogMarkers.SCAN, "Found mod file {} of type {} with provider {}", mf.getFileName(), mf.getType(), mf.getProvider());
         }
+        loadedFiles.addAll(locatedModFiles);
     }
 }

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFile.java

@@ -21,13 +21,13 @@ import org.apache.maven.artifact.versioning.ArtifactVersion;
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.slf4j.Logger;
 
-import java.nio.file.FileSystems;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
@@ -39,15 +39,17 @@ import java.util.jar.Manifest;
 public class ModFile implements IModFile {
     private static final Logger LOGGER = LogUtils.getLogger();
     private final String jarVersion;
+    private final ModFileFactory.ModFileInfoParser parser;
     private Map<String, Object> fileProperties;
     private List<IModLanguageProvider> loaders;
     private Throwable scanError;
     private final SecureJar jar;
     private final Type modFileType;
     private final IModProvider provider;
-    private final IModFileInfo modFileInfo;
+    private       IModFileInfo modFileInfo;
     private ModFileScanData fileModFileScanData;
     private CompletableFuture<ModFileScanData> futureScanResult;
+    private List<CoreModFile> coreMods;
     private Path accessTransformer;
     private List<Path> accessTransformers = Collections.emptyList();
 
@@ -61,11 +63,12 @@ public class ModFile implements IModFile {
     public ModFile(final SecureJar jar, final IModProvider provider, final ModFileFactory.ModFileInfoParser parser, String type) {
         this.provider = provider;
         this.jar = jar;
+        this.parser = parser;
 
         var manifest = this.jar.moduleDataProvider().getManifest();
         modFileType = Type.valueOf(type);
         jarVersion = Optional.ofNullable(manifest.getMainAttributes().getValue(Attributes.Name.IMPLEMENTATION_VERSION)).orElse("0.0NONE");
-        this.modFileInfo = ModFileParser.readModList(this, parser);
+        this.modFileInfo = ModFileParser.readModList(this, this.parser);
     }
 
     @Override
@@ -92,22 +95,31 @@ public class ModFile implements IModFile {
         return modFileInfo.getMods();
     }
 
-    @Deprecated(forRemoval = true, since = "1.21.11")
+    /** @deprecated Use {@link #getAccessTransformers()} instead*/
+    @Deprecated(forRemoval=true, since="1.21.11")
     public Optional<Path> getAccessTransformer() {
         return Optional.ofNullable(accessTransformer);
     }
 
     public List<Path> getAccessTransformers() {
-        return this.accessTransformers;
+        return accessTransformers;
     }
 
     public boolean identifyMods() {
+        this.modFileInfo = ModFileParser.readModList(this, this.parser);
         if (this.modFileInfo == null) return this.getType() != Type.MOD;
-        LOGGER.debug(LogMarkers.LOADING,"Loading mod file {} with languages {}", this.getFileName(), this.modFileInfo.requiredLanguageLoaders());
-        var cfg = this.modFileInfo.getConfig()
-            .<List<String>>getConfigElement("accessTransformers")
-            .orElse(null);
-
+        LOGGER.debug(LogMarkers.LOADING,"Loading mod file {} with languages {}", this.getFilePath(), this.modFileInfo.requiredLanguageLoaders());
+        this.coreMods = ModFileParser.getCoreMods(this);
+        this.coreMods.forEach(mi-> LOGGER.debug(LogMarkers.LOADING,"Found coremod {}", mi.getPath()));
+        List<String> cfg;
+        // Note: Some mods may have invalid tomls copied from other projects.
+        // Unfortunately we must protect against those landmines.
+        try {
+            cfg = this.modFileInfo.getConfig().<List<String>>getConfigElement("accessTransformers").orElse(null);
+        } catch (Exception e) {
+            cfg = null;
+            LOGGER.warn("{} contains an invalid 'accessTransformers' TOML entry. Should be e.g. accessTransformers = [\"META-INF/accesstransformer.cfg\", \"META-INF/extra_at.cfg\"] or accessTransformers = [] for no ATs. Falling back to default.", this.getFileName());
+        }
         if (cfg == null) {
             var path = findResource("META-INF", "accesstransformer.cfg");
             if (Files.exists(path)) {
@@ -116,14 +128,18 @@ public class ModFile implements IModFile {
             }
         } else if (!cfg.isEmpty()) {
             var paths = new ArrayList<Path>(cfg.size());
-            for (var path : cfg)
-                paths.add(getSecureJar().getPath(path.replace('\\', '/')));
+            for (var path : cfg) {
+                paths.add(getSecureJar().getPath(path.replace("\\","/")));
+            }
             this.accessTransformers = List.copyOf(paths);
         }
-
         return true;
     }
 
+    public List<CoreModFile> getCoreMods() {
+        return coreMods;
+    }
+
     /**
      * Run in an executor thread to harvest the class and annotation list
      */
@@ -191,28 +207,12 @@ public class ModFile implements IModFile {
 
     @Override
     public String toString() {
-        var path = getFilePath();
-        return "Mod File: " + path == null ? "null" : path.toUri().toString();
+        return "Mod File: " + Objects.toString(this.jar.getPrimaryPath());
     }
 
     @Override
     public String getFileName() {
-        // This is only used for debugging, so lets try and make it a useful debug
-        var path = getFilePath();
-        var filename = path.getFileName();
-
-        // ZipFileSystem toString will return the outer file path
-        var ret = filename == null ? path.getFileSystem().toString() : filename.toString();
-
-        // If it's a directory on the default file system, return the full path
-        if (Files.isDirectory(path) && path.getFileSystem() == FileSystems.getDefault())
-            ret = path.toAbsolutePath().toString();
-
-        // If we are in a FileSystem 'root' like UnionFS, return the full uri
-        if (ret.isEmpty() || ret.equals("/"))
-            ret = path.toUri().toString();
-
-        return ret;
+        return getFilePath().getFileName().toString();
     }
 
     @Override

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFileInfo.java

@@ -264,7 +264,7 @@ public class ModFileInfo implements IModFileInfo, IConfigurable {
 
     @Override
     public String versionString()  {
-        return getMods().getFirst().getVersion().toString();
+        return getMods().get(0).getVersion().toString();
     }
 
     @Override

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFileParser.java

@@ -6,16 +6,25 @@
 package net.minecraftforge.fml.loading.moddiscovery;
 
 import com.electronwill.nightconfig.core.file.FileConfig;
+import com.electronwill.nightconfig.core.io.ParsingException;
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
 import com.mojang.logging.LogUtils;
 import net.minecraftforge.fml.loading.LogMarkers;
 import net.minecraftforge.forgespi.language.IModFileInfo;
 import net.minecraftforge.forgespi.locating.IModFile;
 import net.minecraftforge.forgespi.locating.ModFileFactory;
+import net.minecraftforge.forgespi.locating.ModFileLoadingException;
 import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 
+import java.io.IOException;
+import java.lang.reflect.Type;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
 
 public class ModFileParser {
     private static final Logger LOGGER = LogUtils.getLogger();
@@ -24,6 +33,7 @@ public class ModFileParser {
         return parser.build(modFile);
     }
 
+    // Note: Although @Nullable, several other places in FML assume ModFileInfo is not null. Keep this in mind
     public static @Nullable IModFileInfo modsTomlParser(final IModFile imodFile) {
         ModFile modFile = (ModFile) imodFile;
         LOGGER.debug(LogMarkers.LOADING,"Considering mod file candidate {}", modFile.getFilePath());
@@ -34,9 +44,35 @@ public class ModFileParser {
         }
 
         final FileConfig fileConfig = FileConfig.builder(modsjson).build();
-        fileConfig.load();
-        fileConfig.close();
-        final NightConfigWrapper configWrapper = new NightConfigWrapper(fileConfig);
-        return new ModFileInfo(modFile, configWrapper, configWrapper::setFile);
+        try {
+            fileConfig.load();
+            fileConfig.close();
+            final NightConfigWrapper configWrapper = new NightConfigWrapper(fileConfig);
+            return new ModFileInfo(modFile, configWrapper, configWrapper::setFile);
+        } catch (ParsingException e) {
+            LOGGER.error("Mod candidate {} contains a corrupt or misconfigured toml.", modFile.getFileName());
+            throw new ModFileLoadingException("Mod candidate " + modFile.getFileName() + " contains a corrupt or misconfigured toml.");
+        }
+    }
+
+    protected static List<CoreModFile> getCoreMods(final ModFile modFile) {
+        Map<String,String> coreModPaths;
+        try {
+            final Path coremodsjson = modFile.findResource("META-INF", "coremods.json");
+            if (!Files.exists(coremodsjson)) {
+                return Collections.emptyList();
+            }
+            final Type type = new TypeToken<Map<String, String>>() {}.getType();
+            final Gson gson = new Gson();
+            coreModPaths = gson.fromJson(Files.newBufferedReader(coremodsjson), type);
+        } catch (IOException e) {
+            LOGGER.debug(LogMarkers.LOADING,"Failed to read coremod list coremods.json", e);
+            return Collections.emptyList();
+        }
+
+        return coreModPaths.entrySet().stream()
+                .peek(e-> LOGGER.debug(LogMarkers.LOADING,"Found coremod {} with Javascript path {}", e.getKey(), e.getValue()))
+                .map(e -> new CoreModFile(e.getKey(), modFile.findResource(e.getValue()),modFile))
+                .toList();
     }
 }

fmlloader/src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModValidator.java

@@ -34,6 +34,7 @@ public class ModValidator {
     private LoadingModList loadingModList;
     private final List<IModFile> brokenFiles = new ArrayList<>();
     private final List<EarlyLoadingException.ExceptionData> discoveryErrorData;
+    private final List<ModFileLoadingException> modFileLoadingExceptions;
 
     public ModValidator(Map<IModFile.Type, List<ModFile>> modFiles, List<IModFileInfo> brokenFiles, List<EarlyLoadingException.ExceptionData> discoveryErrorData, List<ModFileLoadingException> modFileLoadingExceptions) {
         this.candidateMods = lst(modFiles.get(IModFile.Type.MOD));
@@ -43,6 +44,7 @@ public class ModValidator {
         this.candidatePlugins.addAll(lst(modFiles.get(IModFile.Type.LIBRARY)));
         this.discoveryErrorData = discoveryErrorData;
         this.brokenFiles.addAll(brokenFiles.stream().map(IModFileInfo::getFile).toList());
+        this.modFileLoadingExceptions = modFileLoadingExceptions;
     }
 
     public ModValidator(Map<IModFile.Type, List<ModFile>> modFiles, List<IModFileInfo> brokenFiles, List<EarlyLoadingException.ExceptionData> discoveryErrorData) {
@@ -50,9 +52,7 @@ public class ModValidator {
     }
 
     private static List<ModFile> lst(List<ModFile> files) {
-        if (files == null) return new ArrayList<>();
-        if (files instanceof ArrayList) return files;
-        return new ArrayList<>(files);
+        return files == null ? new ArrayList<>() : new ArrayList<>(files);
     }
 
     public void stage1Validation() {
@@ -60,7 +60,7 @@ public class ModValidator {
         if (LOGGER.isDebugEnabled(LogMarkers.SCAN)) {
             LOGGER.debug(LogMarkers.SCAN, "Found {} mod files with {} mods", candidateMods.size(), candidateMods.stream().mapToInt(mf -> mf.getModInfos().size()).sum());
         }
-        ImmediateWindowHandler.updateProgress("Found " + candidateMods.size() + " mod candidates");
+        ImmediateWindowHandler.updateProgress("Found "+candidateMods.size()+" mod candidates");
     }
 
     @NotNull
@@ -125,6 +125,7 @@ public class ModValidator {
         allErrors.addAll(this.discoveryErrorData);
 
         loadingModList = ModSorter.sort(candidateMods, allErrors);
+        loadingModList.addCoreMods();
         loadingModList.addAccessTransformers();
         loadingModList.setBrokenFiles(brokenFiles);
         BackgroundScanHandler backgroundScanHandler = new BackgroundScanHandler(candidateMods);

fmlloader/src/main/java/net/minecraftforge/fml/loading/targets/CommonDevLaunchHandler.java

@@ -156,6 +156,7 @@ abstract class CommonDevLaunchHandler extends CommonLaunchHandler {
         return new String[] {
             "net/minecraftforge/",
             "META-INF/services/",
+            "META-INF/coremods.json",
             "META-INF/mods.toml"
         };
     }

fmlloader/src/main/java/net/minecraftforge/fml/loading/targets/ForgeDevLocator.java

@@ -96,14 +96,14 @@ public final class ForgeDevLocator extends AbstractModProvider implements IModLo
 
             // Find resource directories for every mod in this group
             var paths = new LinkedHashSet<Path>();
-            for (var modid : modids.stream().sorted().toList()) {
+            for (var modid : modids) {
                 var rsc = path.resolve(modid);
                 if (Files.exists(rsc))
                     paths.add(rsc);
             }
 
             var root = memory.getPath(modids.iterator().next()); // use the first modid as our root
-            buildModsToml(paths, modids, root, pkg.startsWith("net/minecraftforge/debug/client/"));
+            buildModsToml(paths, modids, root);
             buildPackMeta(paths, root);
             moveModuleInfo(paths, root);
 
@@ -187,7 +187,7 @@ public final class ForgeDevLocator extends AbstractModProvider implements IModLo
     }
 
     // Builds or update the mods.toml file for all @Mods in this package
-    private static void buildModsToml(Set<Path> resources, Set<String> modids, Path root, boolean clientOnly) {
+    private static void buildModsToml(Set<Path> resources, Set<String> modids, Path root) {
         var toml = resources.stream()
             .map(p -> p.resolve(MODS_TOML))
             .filter(Files::exists)
@@ -205,8 +205,7 @@ public final class ForgeDevLocator extends AbstractModProvider implements IModLo
         var defaults = Map.of(
             "modLoader", "javafml",
             "loaderVersion", "[0,)",
-            "license", "Doesnt fucking matter",
-            "clientSideOnly", clientOnly
+            "license", "Doesnt fucking matter"
         );
 
         for (var key : defaults.keySet()) {

fmlloader/src/main/resources/META-INF/services/cpw.mods.modlauncher.serviceapi.ILaunchPluginService

@@ -1,4 +1,5 @@
 net.minecraftforge.fml.loading.log4j.SLF4JFixerLaunchPluginService
 net.minecraftforge.fml.loading.RuntimeDistCleaner
 net.minecraftforge.fml.common.asm.RuntimeEnumExtender
+net.minecraftforge.fml.common.asm.ObjectHolderDefinalize
 net.minecraftforge.fml.common.asm.CapabilityTokenSubclass

fmlloader/src/main/resources/jarjar_options.json

@@ -1,35 +0,0 @@
-{
-  "options": [
-    {
-      "resource": "com/llamalad7/mixinextras/platform/forge/MixinExtrasConfigPlugin.class",
-      "layer": "GAMELIBRARY",
-      "id": "mixinextras",
-      "deps": [
-        {
-          "identifier": {
-            "group": "com.github.LlamaLad7",
-            "artifact": "MixinExtras"
-          },
-          "version": {
-            "range": "[0.5.3,)",
-            "artifactVersion": "0.5.3"
-          },
-          "path": "",
-          "isObfuscated": false
-        }
-      ],
-      "meta": {
-        "identifier": {
-          "group": "io.github.llamalad7",
-          "artifact": "mixinextras-forge"
-        },
-        "version": {
-          "artifactVersion": "0.5.3"
-        },
-        "path": "",
-        "isObfuscated": false
-      },
-      "nested": true
-    }
-  ]
-}

forge-transformers/build.gradle

@@ -1,73 +0,0 @@
-import net.minecraftforge.gradleutils.PomUtils
-
-plugins {
-    id 'java-library'
-    id 'maven-publish'
-    id 'net.minecraftforge.licenser'
-    id 'net.minecraftforge.gradleutils'
-    alias(libs.plugins.apt)
-}
-
-apply from: rootProject.file('build_shared.gradle')
-
-configurations.forEach{ it.transitive = false }
-
-dependencies {
-    compileOnly(libs.jetbrains.annotations)
-
-    implementation(libs.bundles.asm) // Needed by all the black magic
-    implementation(libs.log4j.api)
-    implementation(libs.gson)
-    implementation(libs.modlauncher)
-    implementation(libs.coremods.api)
-
-    testCompileOnly(libs.jetbrains.annotations)
-}
-
-java {
-    toolchain.languageVersion = JavaLanguageVersion.of(JAVA_VERSION)
-    withSourcesJar()
-}
-
-tasks.named('jar', Jar) {
-    manifest {
-        attributes([
-            'Automatic-Module-Name': 'net.minecraftforge.forge.transformers',
-            'Forge-Module-Layer':    'boot'
-        ] as LinkedHashMap)
-        attributes([
-            'Specification-Title':   'Forge Transformers',
-            'Specification-Vendor':  'Forge Development LLC',
-            'Specification-Version': '1',
-            'Implementation-Title':  'Forge Transformers',
-            'Implementation-Vendor': 'Forge Development LLC',
-            'Implementation-Version': FORGE_VERSION
-        ] as LinkedHashMap, 'net/minecraftforge/forge/transformers/')
-    }
-}
-
-tasks.withType(JavaCompile).configureEach {
-    options.compilerArgs << '-Xlint:unchecked'
-}
-
-license {
-    header = rootProject.file('LICENSE-header.txt')
-}
-
-publishing {
-    publications.register('mavenJava', MavenPublication) {
-        from components.java
-        artifactId = 'forge-transformers'
-        pom {
-            name = project.name
-            description = 'Forge-specific transformers unrelated to the FML project.'
-            url = 'https://github.com/MinecraftForge/MinecraftForge'
-            PomUtils.setGitHubDetails(pom, 'MinecraftForge')
-            license PomUtils.Licenses.LGPLv2_1
-        }
-    }
-
-    repositories {
-        maven gradleutils.publishingForgeMaven
-    }
-}

forge-transformers/src/main/java/net/minecraftforge/forge/transformers/FieldToMethodTransformer.java

@@ -1,158 +0,0 @@
-/*
- * Copyright (c) Forge Development LLC and contributors
- * SPDX-License-Identifier: LGPL-2.1-only
- */
-
-package net.minecraftforge.forge.transformers;
-
-import cpw.mods.modlauncher.api.ITransformer;
-import cpw.mods.modlauncher.api.ITransformerVotingContext;
-import cpw.mods.modlauncher.api.TransformerVoteResult;
-
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.objectweb.asm.Opcodes;
-import org.objectweb.asm.tree.ClassNode;
-import org.objectweb.asm.tree.FieldInsnNode;
-import org.objectweb.asm.tree.FieldNode;
-import org.objectweb.asm.tree.MethodInsnNode;
-import org.objectweb.asm.tree.MethodNode;
-
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-record FieldToMethodTransformer(String className, Map<String, String> fields) implements ITransformer<ClassNode> {
-    private static final Logger LOGGER = LogManager.getLogger();
-
-    // TODO [Forge][Transformer] Make this properly data driven or configurable.
-    //      It was hard-coded like this before when using JS CoreMods, though.
-    static final Map<String, Map<String, String>> TARGETS = Map.of(
-        "net.minecraft.world.level.biome.Biome",
-        Map.of(
-            "climateSettings", "getModifiedClimateSettings",
-            "specialEffects", "getModifiedSpecialEffects"
-        ),
-
-        "net.minecraft.world.effect.MobEffectInstance",
-        Map.of(
-            "effect", "getEffect"
-        ),
-
-        "net.minecraft.world.level.block.LiquidBlock",
-        Map.of(
-            "fluid", "getFluid"
-        ),
-
-        "net.minecraft.world.item.BucketItem",
-        Map.of(
-            "content", "getFluid"
-        ),
-
-        "net.minecraft.world.level.block.FlowerPotBlock",
-        Map.of(
-            "potted", "getPotted"
-        )
-    );
-
-    @SuppressWarnings("rawtypes")
-    static List<ITransformer> getAll() {
-        var ret = new ArrayList<ITransformer>(TARGETS.size());
-        for (var entry : TARGETS.entrySet()) {
-            ret.add(new FieldToMethodTransformer(entry.getKey(), entry.getValue()));
-        }
-        return ret;
-    }
-
-    @Override
-    public @NotNull ClassNode transform(ClassNode input, ITransformerVotingContext context) {
-        for (var entry : this.fields.entrySet()) {
-            redirectFieldToMethod(input, entry.getKey(), entry.getValue());
-        }
-
-        return input;
-    }
-
-    @Override
-    public @NotNull TransformerVoteResult castVote(ITransformerVotingContext context) {
-        return TransformerVoteResult.YES;
-    }
-
-    @Override
-    public @NotNull Set<Target> targets() {
-        return Set.of(Target.targetClass(this.className));
-    }
-
-    private static final @Nullable FieldNode findField(final ClassNode classNode, final String name) {
-        FieldNode ret = null;
-        for (var fieldNode : classNode.fields) {
-            if (name.equals(fieldNode.name)) {
-                if (ret != null)
-                    throw new IllegalStateException("Found multiple fields with name " + name);
-                ret = fieldNode;
-            }
-        }
-        return ret;
-    }
-
-    private static final @Nullable MethodNode findMethod(final ClassNode classNode, final String name, final String desc) {
-        for (var methodNode : classNode.methods) {
-            if (name.equals(methodNode.name) && desc.equals(methodNode.desc))
-                return methodNode;
-        }
-        return null;
-    }
-
-    /**
-     * Rewrites accesses to a specific field in the given class to a method-call.
-     * <p>
-     * The field specified by fieldName must be private and non-static. The method-call the field-access is redirected
-     * to does not take any parameters and returns an object of the same type as the field. If no methodName is passed,
-     * any method matching the described signature will be used as callable method.
-     *
-     * @param classNode  the class to rewrite the accesses in
-     * @param fieldName  the field accesses should be redirected to
-     * @param methodName the name of the method to redirect accesses through
-     * @apiNote This method was written as a special use case for Forge. It is not recommended to use this method
-     *     unless you know what you are doing.
-     */
-    private static void redirectFieldToMethod(final ClassNode classNode, final String fieldName, final String methodName) {
-        var foundField = findField(classNode, fieldName);
-        if (foundField == null)
-            throw new IllegalStateException("No field with name " + fieldName + " found");
-
-        if (!Modifier.isPrivate(foundField.access) || Modifier.isStatic(foundField.access))
-            throw new IllegalStateException("Field " + fieldName + " is not private and an instance field");
-
-        var methodSignature = "()" + foundField.desc;
-        var foundMethod = findMethod(classNode, methodName, methodSignature);
-        if (foundMethod == null)
-            throw new IllegalStateException("Unable to find method " + methodName + methodSignature);
-
-        for (MethodNode methodNode : classNode.methods) {
-            // skip the found getter method
-            if (methodNode == foundMethod) continue;
-
-            // Why is this filtered? UI twas added in the beginning but would it matter?
-            if (methodSignature.equals(foundMethod)) {
-                LOGGER.debug("FieldToMethodTransformer " + classNode.name + " skipping " + methodNode.name + methodNode.hashCode());
-                continue;
-            }
-
-            for (var insn : methodNode.instructions) {
-                if (insn.getOpcode() != Opcodes.GETFIELD)
-                    continue;
-
-                var fieldInsnNode = (FieldInsnNode)insn;
-                if (fieldName.equals(fieldInsnNode.name)) {
-                    var replace = new MethodInsnNode(Opcodes.INVOKEVIRTUAL, classNode.name, foundMethod.name, foundMethod.desc, false);
-                    methodNode.instructions.set(insn, replace);
-                }
-            }
-        }
-    }
-}

forge-transformers/src/main/java/net/minecraftforge/forge/transformers/ForgeModTransformers.java

@@ -1,34 +0,0 @@
-/*
- * Copyright (c) Forge Development LLC and contributors
- * SPDX-License-Identifier: LGPL-2.1-only
- */
-
-package net.minecraftforge.forge.transformers;
-
-import cpw.mods.modlauncher.api.IEnvironment;
-import cpw.mods.modlauncher.api.ITransformationService;
-import cpw.mods.modlauncher.api.ITransformer;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.List;
-import java.util.Set;
-
-public record ForgeModTransformers(String name) implements ITransformationService {
-    public ForgeModTransformers() {
-        this("forge");
-    }
-
-    @Override
-    public void initialize(IEnvironment environment) { }
-
-    @Override
-    public void onLoad(IEnvironment env, Set<String> otherServices) { }
-
-    @Override
-    @SuppressWarnings("rawtypes")
-    public @NotNull List<ITransformer> transformers() {
-        List<ITransformer> transformers = FieldToMethodTransformer.getAll();
-        transformers.add(new MethodRedirector());
-        return transformers;
-    }
-}

forge-transformers/src/main/java/net/minecraftforge/forge/transformers/MethodRedirector.java

@@ -1,152 +0,0 @@
-/*
- * Copyright (c) Forge Development LLC and contributors
- * SPDX-License-Identifier: LGPL-2.1-only
- */
-
-package net.minecraftforge.forge.transformers;
-
-import com.google.gson.Gson;
-import com.google.gson.annotations.SerializedName;
-import cpw.mods.modlauncher.api.ITransformer;
-import cpw.mods.modlauncher.api.ITransformerVotingContext;
-import cpw.mods.modlauncher.api.TransformerVoteResult;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.objectweb.asm.Opcodes;
-import org.objectweb.asm.tree.AbstractInsnNode;
-import org.objectweb.asm.tree.ClassNode;
-import org.objectweb.asm.tree.MethodInsnNode;
-import org.objectweb.asm.tree.MethodNode;
-
-import java.io.InputStreamReader;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.function.UnaryOperator;
-import java.util.stream.Collectors;
-
-// NOTE: THIS IS A SINGLETON!
-record MethodRedirector() implements ITransformer<ClassNode> {
-    private static final Logger LOGGER = LogManager.getLogger();
-    private static final Gson GSON = new Gson();
-
-    private static final Replacement[] REPLACEMENTS = {
-        new Replacement(
-            // finalizeSpawn redirection to ForgeEventFactory.onFinalizeSpawn
-            Opcodes.INVOKEVIRTUAL,
-            "finalizeSpawn",
-            "(Lnet/minecraft/world/level/ServerLevelAccessor;Lnet/minecraft/world/DifficultyInstance;Lnet/minecraft/world/entity/EntitySpawnReason;Lnet/minecraft/world/entity/SpawnGroupData;)Lnet/minecraft/world/entity/SpawnGroupData;",
-            GSON.fromJson(new InputStreamReader(sneak(() -> MethodRedirector.class.getModule().getResourceAsStream("coremods/finalize_spawn_targets.json"))), Target[].class),
-            insn -> new MethodInsnNode(
-                Opcodes.INVOKESTATIC,
-                "net/minecraftforge/event/ForgeEventFactory",
-                "onFinalizeSpawn",
-                "(Lnet/minecraft/world/entity/Mob;Lnet/minecraft/world/level/ServerLevelAccessor;Lnet/minecraft/world/DifficultyInstance;Lnet/minecraft/world/entity/EntitySpawnReason;Lnet/minecraft/world/entity/SpawnGroupData;)Lnet/minecraft/world/entity/SpawnGroupData;",
-                false
-            )
-        )
-    };
-
-    private static <T> T sneak(Callable<T> callable) {
-        try {
-            return callable.call();
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    record Replacement(
-        int opcode,
-        String name,
-        String desc,
-        Target[] targets,
-        UnaryOperator<MethodInsnNode> factory
-    ) { }
-
-    record Target(
-        @SerializedName("class") String className,
-        String[] methods
-    ) { }
-
-    @Override
-    public @NotNull TransformerVoteResult castVote(ITransformerVotingContext context) {
-        return TransformerVoteResult.YES;
-    }
-
-    @Override
-    public @NotNull Set<ITransformer.Target> targets() {
-        return Arrays
-            .stream(REPLACEMENTS)
-            .map(Replacement::targets)
-            .flatMap(Arrays::stream)
-            .map(Target::className)
-            .map(ITransformer.Target::targetClass)
-            .collect(Collectors.toUnmodifiableSet());
-    }
-
-    @Override
-    public @NotNull ClassNode transform(ClassNode clazz, ITransformerVotingContext context) {
-        for (var replacement : REPLACEMENTS) {
-            for (var methodString : getClassTargetMethods(clazz, replacement)) {
-                // cut up the string since we've put both the name and desc as the target
-                var splitPos = methodString.indexOf('(');
-                var methodName = methodString.substring(0, splitPos);
-                var methodDesc = methodString.substring(splitPos);
-                var method = findMethodNode(clazz, methodName, methodDesc);
-
-                if (method == null) {
-                    LOGGER.error("Failed to redirect method call for {}! Method {} not found in class {}! This is a Forge bug, and is likely due to a Minecraft update changing something.", replacement.name, methodString, clazz.name);
-                    continue;
-                }
-
-                for (var insn : method.instructions) {
-                    if (!shouldReplace(insn, replacement)) continue;
-
-                    var methodInsn = (MethodInsnNode) insn;
-                    var redirection = replacement.factory.apply(methodInsn);
-                    LOGGER.debug("Redirecting method call {}{} to {}{} inside of {}.{}", methodInsn.name, methodInsn.desc, redirection.name, redirection.desc, clazz.name, method.name);
-                    method.instructions.set(insn, redirection);
-                }
-            }
-        }
-
-        return clazz;
-    }
-
-    private static @Nullable MethodNode findMethodNode(ClassNode clazz, String name, String desc) {
-        for (var method : clazz.methods) {
-            if (name.equals(method.name) && desc.equals(method.desc))
-                return method;
-        }
-        return null;
-    }
-
-    private static boolean shouldReplace(AbstractInsnNode insn, Replacement replacement) {
-        return insn.getOpcode() == replacement.opcode
-            && replacement.name.equals(((MethodInsnNode) insn).name)
-            && replacement.desc.equals(((MethodInsnNode) insn).desc);
-    }
-
-    private static List<String> getClassTargetMethods(ClassNode clazz, Replacement replacement) {
-        for (var t : replacement.targets) {
-            if (!t.className.equals(clazz.name)) continue;
-
-            // declared methods
-            var targets = new ArrayList<>(Arrays.asList(t.methods));
-
-            // synthetic methods
-            for (var method : clazz.methods) {
-                if ((method.access & Opcodes.ACC_SYNTHETIC) != 0)
-                    targets.add(method.name + method.desc);
-            }
-
-            return targets;
-        }
-
-        return List.of();
-    }
-}

forge-transformers/src/main/resources/META-INF/services/cpw.mods.modlauncher.api.ITransformationService

@@ -1 +0,0 @@
-net.minecraftforge.forge.transformers.ForgeModTransformers

gradle.properties

@@ -5,11 +5,11 @@ org.gradle.daemon=false
 org.gradle.parallel=true
 
 JAVA_VERSION=21
-MC_VERSION=1.21.11
+MC_VERSION=1.21.5
 MC_NEXT_VERSION=1.22
-MCP_VERSION=20251223.124241
+MCP_VERSION=20250325.155543
 MAPPING_CHANNEL=official
-MAPPING_VERSION=1.21.11
+MAPPING_VERSION=1.21.5
 
 # Set to true before the first build of a new MC version, so we don't do compatibility checks
 CHECK_COMPATIBILITY=false

javafmllanguage/build.gradle

@@ -10,7 +10,7 @@ plugins {
 apply from: rootProject.file('build_shared.gradle')
 
 dependencies {
-    compileOnly(libs.jetbrains.annotations)
+    compileOnly(libs.nulls)
     implementation(project(':fmlloader'))
     implementation(project(':fmlcore'))
     implementation(libs.unsafe)

javafmllanguage/src/main/java/net/minecraftforge/fml/common/Mod.java

@@ -12,10 +12,9 @@ import java.lang.annotation.Target;
 import java.util.function.Supplier;
 
 import net.minecraftforge.api.distmarker.Dist;
-import net.minecraftforge.eventbus.api.bus.BusGroup;
+import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.fml.Bindings;
 import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
-import org.jspecify.annotations.Nullable;
 
 /**
  * This defines a Mod to FML.
@@ -25,11 +24,12 @@ import org.jspecify.annotations.Nullable;
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
-public @interface Mod {
+public @interface Mod
+{
     /**
      * The unique mod identifier for this mod.
-     * <b>Required to be lowercased in the English locale for compatibility. Will be truncated to 64 characters long.</b>
-     * <br>
+     * <b>Required to be lowercased in the english locale for compatibility. Will be truncated to 64 characters long.</b>
+     *
      * This will be used to identify your mod for third parties (other mods), it will be used to identify your mod for registries such as block and item registries.
      * By default, you will have a resource domain that matches the modid. All these uses require that constraints are imposed on the format of the modid.
      */
@@ -61,40 +61,32 @@ public @interface Mod {
         String modid() default "";
 
         /**
-         * Specify an alternative bus to listen to.
-         * <br>
-         * If you know all listeners in this class are for a specific bus, you can set it here to speed up registration.
+         * Specify an alternative bus to listen to
          *
          * @return the bus you wish to listen to
          */
-        Bus bus() default Bus.BOTH;
+        Bus bus() default Bus.FORGE;
 
         enum Bus {
             /**
-             * The main BusGroup that most game events are fired on.
+             * The main Forge Event Bus.
+             *
+             * <p>See {@code MinecraftForge#EVENT_BUS}</p>
              */
             FORGE(Bindings.getForgeBus()),
-
             /**
-             * The mod-specific event BusGroup, usually for mod lifecycle events.
-             * @see FMLJavaModLoadingContext#getModBusGroup()
+             * The mod specific Event bus.
+             * @see FMLJavaModLoadingContext#getModEventBus()
              */
-            MOD(()-> FMLJavaModLoadingContext.get().getModBusGroup()),
+            MOD(()-> FMLJavaModLoadingContext.get().getModEventBus());
 
-            /**
-             * Both the {@link #FORGE} and {@link #MOD} buses. This is slower to register events in your class but
-             * allows you to listen to events from different BusGroup types without needing separate classes annotated
-             * with {@link EventBusSubscriber}.
-             */
-            BOTH(() -> null);
+            private final Supplier<IEventBus> busSupplier;
 
-            private final Supplier<@Nullable BusGroup> busSupplier;
-
-            Bus(Supplier<@Nullable BusGroup> eventBusSupplier) {
+            Bus(final Supplier<IEventBus> eventBusSupplier) {
                 this.busSupplier = eventBusSupplier;
             }
 
-            public Supplier<@Nullable BusGroup> bus() {
+            public Supplier<IEventBus> bus() {
                 return busSupplier;
             }
         }

javafmllanguage/src/main/java/net/minecraftforge/fml/javafmlmod/AutomaticEventSubscriber.java

@@ -7,40 +7,22 @@ package net.minecraftforge.fml.javafmlmod;
 
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
-import net.minecraftforge.eventbus.api.bus.BusGroup;
-import net.minecraftforge.eventbus.api.bus.CancellableEventBus;
-import net.minecraftforge.eventbus.api.bus.EventBus;
-import net.minecraftforge.eventbus.api.event.characteristic.Cancellable;
-import net.minecraftforge.eventbus.api.listener.EventListener;
-import net.minecraftforge.eventbus.api.listener.ObjBooleanBiConsumer;
-import net.minecraftforge.eventbus.api.listener.Priority;
-import net.minecraftforge.eventbus.api.listener.SubscribeEvent;
-import net.minecraftforge.eventbus.internal.Event;
 import net.minecraftforge.fml.Logging;
 import net.minecraftforge.fml.ModContainer;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
-import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.forgespi.language.ModFileScanData;
 import net.minecraftforge.forgespi.language.ModFileScanData.AnnotationData;
 import net.minecraftforge.forgespi.language.ModFileScanData.EnumData;
 import net.minecraftforge.fml.loading.FMLEnvironment;
-import net.minecraftforge.unsafe.UnsafeHacks;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.jspecify.annotations.Nullable;
 import org.objectweb.asm.Type;
 
-import java.lang.invoke.LambdaMetafactory;
-import java.lang.invoke.MethodHandle;
-import java.lang.invoke.MethodHandles;
-import java.lang.invoke.MethodType;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.util.*;
-import java.util.function.Consumer;
-import java.util.function.Predicate;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 /**
@@ -48,13 +30,11 @@ import java.util.stream.Collectors;
  * annotations and passes the class instances to the {@link Bus}
  * defined by the annotation. Defaults to {@code MinecraftForge#EVENT_BUS}
  */
-public final class AutomaticEventSubscriber {
+public class AutomaticEventSubscriber {
     private static final Logger LOGGER = LogManager.getLogger();
     private static final Type AUTO_SUBSCRIBER = Type.getType(EventBusSubscriber.class);
     private static final Type MOD_TYPE = Type.getType(Mod.class);
     private static final Type ONLY_IN_TYPE = Type.getType(OnlyIn.class);
-    private static final List<EnumData> DEFAULT_SIDES = List.of(new EnumData(null, "CLIENT"), new EnumData(null, "DEDICATED_SERVER"));
-    private static final EnumData DEFAULT_BUS = new EnumData(null, "BOTH");
 
     public static void inject(ModContainer mod, ModFileScanData scanData, ClassLoader loader) {
         if (scanData == null) return;
@@ -73,6 +53,9 @@ public final class AutomaticEventSubscriber {
             .filter(data -> MOD_TYPE.equals(data.annotationType()))
             .collect(Collectors.toMap(a -> a.clazz().getClassName(), a -> (String)a.annotationData().get("value")));
 
+        var defaultSides = List.of(new EnumData(null, "CLIENT"), new EnumData(null, "DEDICATED_SERVER"));
+        var defaultBus = new EnumData(null, "FORGE");
+
         for (var data : targets) {
             if (!FMLEnvironment.production && onlyIns.contains(data.clazz().getClassName())) {
                 throw new RuntimeException("Found @OnlyIn on @EventBusSubscriber class " + data.clazz().getClassName() + " - this is not allowed as it causes crashes. Remove the OnlyIn and set value=Dist.CLIENT in the EventBusSubscriber annotation instead");
@@ -81,18 +64,18 @@ public final class AutomaticEventSubscriber {
             var modId = modids.getOrDefault(data.clazz().getClassName(), mod.getModId());
             modId = value(data, "modid", modId);
 
-            var sidesValue = value(data, "value", DEFAULT_SIDES);
+            var sidesValue = value(data, "value", defaultSides);
             var sides = sidesValue.stream()
                 .map(EnumData::value)
                 .map(Dist::valueOf)
                 .collect(Collectors.toSet());
 
-            var busName = value(data, "bus", DEFAULT_BUS).value();
+            var busName = value(data, "bus", defaultBus).value();
             var busTarget = Bus.valueOf(busName);
             if (Objects.equals(mod.getModId(), modId) && sides.contains(FMLEnvironment.dist)) {
                 try {
                     LOGGER.debug(Logging.LOADING, "Auto-subscribing {} to {}", data.clazz().getClassName(), busTarget);
-                    EventBusSubscriberLogic.register(busTarget.bus().get(), Class.forName(data.clazz().getClassName(), true, loader));
+                    busTarget.bus().get().register(Class.forName(data.clazz().getClassName(), true, loader));
                 } catch (ClassNotFoundException e) {
                     LOGGER.fatal(Logging.LOADING, "Failed to load mod class {} for @EventBusSubscriber annotation", data.clazz(), e);
                     throw new RuntimeException(e);
@@ -105,333 +88,4 @@ public final class AutomaticEventSubscriber {
     private static <R> R value(AnnotationData data, String key, R value) {
         return (R)data.annotationData().getOrDefault(key, value);
     }
-
-    /**
-     * This is mostly a carbon copy of EventBus 7's internal EventListenerFactory, with some changes to support adding
-     * to different BusGroups based on the event type, among other things.
-     */
-    private static final class EventBusSubscriberLogic {
-        private EventBusSubscriberLogic() {}
-
-        private static final boolean STRICT_RUNTIME_CHECKS = Boolean.getBoolean("eventbus.api.strictRuntimeChecks");
-
-        /**
-         * If true, performs exhaustive validation on bulk registration to aid debugging.
-         */
-        private static final boolean STRICT_REGISTRATION_CHECKS = STRICT_RUNTIME_CHECKS || Boolean.getBoolean("eventbus.api.strictRegistrationChecks");
-
-        private static final MethodType RETURNS_CONSUMER = MethodType.methodType(Consumer.class);
-        private static final MethodType RETURNS_PREDICATE = MethodType.methodType(Predicate.class);
-        private static final MethodType RETURNS_MONITOR = MethodType.methodType(ObjBooleanBiConsumer.class);
-
-        /** The method type of the {@link Consumer} functional interface ({@code void accept(Object)}) */
-        private static final MethodType CONSUMER_FI_TYPE = MethodType.methodType(void.class, Object.class);
-
-        /** The method type of the {@link Predicate} functional interface ({@code boolean test(Object)}) */
-        private static final MethodType PREDICATE_FI_TYPE = CONSUMER_FI_TYPE.changeReturnType(boolean.class);
-
-        /** The method type of the {@link ObjBooleanBiConsumer} functional interface ({@code void accept(Object, boolean)}) */
-        private static final MethodType MONITOR_FI_TYPE = MethodType.methodType(void.class, Object.class, boolean.class);
-
-        public static void register(@Nullable BusGroup busGroup, Class<?> listenerClass) {
-            if (STRICT_REGISTRATION_CHECKS) registerStrict(busGroup, listenerClass);
-            else registerLenient(busGroup, listenerClass);
-        }
-
-        @SuppressWarnings({"unchecked", "rawtypes"})
-        public static void registerLenient(@Nullable BusGroup busGroup, Class<?> listenerClass) {
-            Method[] declaredMethods = listenerClass.getDeclaredMethods();
-            if (declaredMethods.length == 0)
-                throw new IllegalArgumentException("No declared methods found in " + listenerClass);
-
-            Class<?> firstValidListenerEventType = null;
-
-            int listenersCount = 0;
-            for (var method : declaredMethods) {
-                if (!Modifier.isStatic(method.getModifiers()))
-                    continue;
-
-                if (method.isSynthetic())
-                    continue; // EventBus#89
-
-                int paramCount = method.getParameterCount();
-                if (paramCount == 0 || paramCount > 2)
-                    continue;
-
-                Class<?> returnType = method.getReturnType();
-                if (returnType != void.class && returnType != boolean.class)
-                    continue;
-
-                if (!method.isAnnotationPresent(SubscribeEvent.class))
-                    continue;
-
-                Class<?>[] parameterTypes = method.getParameterTypes();
-                if (!Event.class.isAssignableFrom(parameterTypes[0]))
-                    throw new IllegalArgumentException("First parameter of a @SubscribeEvent method must be an event");
-
-                Class<? extends Event> eventType = (Class<? extends Event>) parameterTypes[0];
-                var subscribeEventAnnotation = method.getAnnotation(SubscribeEvent.class);
-
-                registerListener(busGroup, paramCount, returnType, eventType, subscribeEventAnnotation, method, false);
-                listenersCount++;
-
-                if (firstValidListenerEventType == null)
-                    firstValidListenerEventType = eventType;
-            }
-
-            if (listenersCount == 0)
-                throw new IllegalArgumentException("No listeners found in " + listenerClass);
-            else if (firstValidListenerEventType == null)
-                throw new IllegalArgumentException("No valid listeners found in " + listenerClass);
-        }
-
-        @SuppressWarnings({"unchecked"})
-        public static void registerStrict(BusGroup busGroup, Class<?> listenerClass) {
-            Class<? extends Event> firstValidListenerEventType = null;
-
-            List<Method> declaredMethods = Arrays.stream(listenerClass.getDeclaredMethods())
-                    .filter(Predicate.not(Method::isSynthetic)) // EventBus#89
-                    .toList();
-            if (declaredMethods.isEmpty()) {
-                var errMsg = "No declared methods found in " + listenerClass.getName();
-                var superClass = listenerClass.getSuperclass();
-                if (superClass != null && superClass != Record.class && superClass != Enum.class) {
-                    errMsg += ". Note that listener inheritance is not supported. " +
-                            "If you are trying to inherit listeners, please use @Override and @SubscribeEvent on the method in the subclass.";
-                }
-                throw fail(listenerClass, errMsg);
-            }
-
-            int listenersCount = 0;
-            for (var method : declaredMethods) {
-                var hasSubscribeEvent = method.isAnnotationPresent(SubscribeEvent.class);
-                int paramCount = method.getParameterCount();
-
-                if (hasSubscribeEvent && (paramCount == 0 || paramCount > 2))
-                    throw fail(method, "Invalid number of parameters: " + paramCount + " (expected 1 or 2)");
-
-                if (paramCount == 0)
-                    continue;
-
-                Class<?> returnType = method.getReturnType();
-                Class<?>[] parameterTypes = method.getParameterTypes();
-                var firstParamExtendsEvent = Event.class.isAssignableFrom(parameterTypes[0]);
-
-                if (!hasSubscribeEvent && firstParamExtendsEvent)
-                    throw fail(method, "Missing @SubscribeEvent annotation");
-
-                if (hasSubscribeEvent) {
-                    var firstParamExtendsCancellable = Cancellable.class.isAssignableFrom(parameterTypes[0]);
-                    var subscribeEventAnnotation = method.getAnnotation(SubscribeEvent.class);
-                    var isMonitoringPriority = subscribeEventAnnotation.priority() == Priority.MONITOR;
-
-                    if (!firstParamExtendsEvent)
-                        throw fail(method, "First parameter of a @SubscribeEvent method must be an event");
-
-                    var eventType = (Class<? extends Event>) parameterTypes[0];
-
-                    if (returnType != void.class && returnType != boolean.class)
-                        throw fail(method, "Invalid return type: " + returnType.getName() + " (expected void or boolean)");
-
-                    if (!Modifier.isStatic(method.getModifiers()))
-                        throw fail(method, "Listener method needs to be static");
-
-                    if (isMonitoringPriority && (returnType == boolean.class || subscribeEventAnnotation.alwaysCancelling()))
-                        throw fail(method, "Monitoring listeners cannot cancel events");
-
-                    if (paramCount == 2) {
-                        if (!firstParamExtendsCancellable)
-                            throw fail(method, "Cancellation-aware monitoring listeners are only valid for cancellable events");
-
-                        if (!boolean.class.isAssignableFrom(parameterTypes[1]))
-                            throw fail(method, "Second parameter of a cancellation-aware monitoring listener must be a boolean");
-
-                        if (!isMonitoringPriority)
-                            throw fail(method, "Cancellation-aware monitoring listeners must have a priority of MONITOR");
-                    }
-
-                    if (!firstParamExtendsCancellable) {
-                        if (subscribeEventAnnotation.alwaysCancelling())
-                            throw fail(method, "Always cancelling listeners are only valid for cancellable events");
-
-                        if (returnType == boolean.class)
-                            throw fail(method, "Return type boolean is only valid for cancellable events");
-                    }
-
-                    registerListener(busGroup, paramCount, returnType, eventType, subscribeEventAnnotation, method, true);
-                    listenersCount++;
-
-                    if (firstValidListenerEventType == null)
-                        firstValidListenerEventType = eventType;
-                }
-            }
-
-            if (listenersCount == 0)
-                throw fail(listenerClass, "No listeners found");
-            else if (firstValidListenerEventType == null)
-                throw fail(listenerClass, "No valid listeners found");
-        }
-
-        @SuppressWarnings({"unchecked", "rawtypes"})
-        private static EventListener registerListener(@Nullable BusGroup busGroup,
-                                                      int paramCount, Class<?> returnType, Class<? extends Event> eventType,
-                                                      SubscribeEvent subscribeEventAnnotation, Method method, boolean strict) {
-            if (busGroup == null) {
-                busGroup = IModBusEvent.class.isAssignableFrom(eventType)
-                        ? FMLJavaModLoadingContext.get().getModBusGroup()
-                        : BusGroup.DEFAULT;
-            } else if (strict) {
-                String solution = "To fix this, remove the bus param from your @EventBusSubscriber annotation or move this event listener to another class.";
-                var isDefaultBusGroup = busGroup == BusGroup.DEFAULT;
-                var isModBusEvent = IModBusEvent.class.isAssignableFrom(eventType);
-                if (isDefaultBusGroup && isModBusEvent) { // requested forge bus and has IModBusEvent
-                    throw fail(method, "Event type " + eventType.getName()
-                            + " is on the mod BusGroup but you are asking to register it on the default BusGroup (BusGroup.DEFAULT/EventBusSubscriber.Bus.FORGE). "
-                            + solution);
-                } else if (!isDefaultBusGroup && !isModBusEvent) { // requested mod bus and does not have IModBusEvent
-                    throw fail(method, "Event type " + eventType.getName()
-                            + " is on the default BusGroup but you are asking to register it on the mod BusGroup (context.getModBusGroup()/EventBusSubscriber.Bus.MOD). "
-                            + solution);
-                }
-            }
-
-            // determine the listener type from its parameters and return type
-            if (paramCount == 1) {
-                var priority = subscribeEventAnnotation.priority();
-                if (returnType == void.class) {
-                    if (Cancellable.class.isAssignableFrom(eventType)) {
-                        // Consumer<Event & Cancellable>
-                        var eventBus = CancellableEventBus.create(busGroup, (Class) eventType);
-                        if (subscribeEventAnnotation.alwaysCancelling()) {
-                            return eventBus.addListener(priority, true, createConsumer(method));
-                        } else {
-                            return eventBus.addListener(priority, createConsumer(method));
-                        }
-                    } else {
-                        // Consumer<Event>
-                        return EventBus.create(busGroup, eventType)
-                                .addListener(priority, createConsumer(method));
-                    }
-                } else {
-                    // Predicate<Event & EventCharacteristic.Cancellable>
-                    if (!Cancellable.class.isAssignableFrom(eventType))
-                        throw fail(method, "Return type boolean is only valid for cancellable events");
-
-                    if (subscribeEventAnnotation.alwaysCancelling())
-                        throw new IllegalArgumentException("Always cancelling listeners must have a void return type");
-
-                    return CancellableEventBus.create(busGroup, (Class) eventType)
-                            .addListener(priority, createPredicate(method));
-                }
-            } else {
-                // ObjBooleanBiConsumer<Event & Cancellable>
-                if (returnType != void.class)
-                    throw new IllegalArgumentException("Cancellation-aware monitoring listeners must have a void return type");
-
-                if (subscribeEventAnnotation.alwaysCancelling())
-                    throw new IllegalArgumentException("Monitoring listeners cannot cancel events");
-
-                return CancellableEventBus.create(busGroup, (Class) eventType).addListener(createMonitor(method));
-            }
-        }
-
-        private static IllegalArgumentException fail(Class<?> listenerClass, String reason) {
-            return new IllegalArgumentException("Failed to register " + listenerClass.getName() + ": " + reason);
-        }
-
-        private static IllegalArgumentException fail(Method mtd, String reason) {
-            return new IllegalArgumentException("Failed to register " + mtd.getDeclaringClass().getName() + "." + mtd.getName() + ": " + reason);
-        }
-
-        @SuppressWarnings("unchecked")
-        private static <T extends Event> Consumer<T> createConsumer(Method callback) {
-            var factoryMH = getOrMakeFactory(callback, RETURNS_CONSUMER, CONSUMER_FI_TYPE, "accept");
-
-            try {
-                return (Consumer<T>) factoryMH.invokeExact();
-            } catch (Exception e) {
-                throw makeRuntimeException(callback, e);
-            } catch (Throwable t) {
-                throw new RuntimeException(t);
-            }
-        }
-
-        @SuppressWarnings("unchecked")
-        private static <T extends Event> Predicate<T> createPredicate(Method callback) {
-            var factoryMH = getOrMakeFactory(callback, RETURNS_PREDICATE, PREDICATE_FI_TYPE, "test");
-
-            try {
-                return (Predicate<T>) factoryMH.invokeExact();
-            } catch (Exception e) {
-                throw makeRuntimeException(callback, e);
-            } catch (Throwable t) {
-                throw new RuntimeException(t);
-            }
-        }
-
-        @SuppressWarnings("unchecked")
-        private static <T extends Event> ObjBooleanBiConsumer<T> createMonitor(Method callback) {
-            var factoryMH = getOrMakeFactory(callback, RETURNS_MONITOR, MONITOR_FI_TYPE, "accept");
-
-            try {
-                return (ObjBooleanBiConsumer<T>) factoryMH.invokeExact();
-            } catch (Exception e) {
-                throw makeRuntimeException(callback, e);
-            } catch (Throwable t) {
-                throw new RuntimeException(t);
-            }
-        }
-
-        private static MethodHandle getOrMakeFactory(Method callback, MethodType factoryReturnType,
-                                                     MethodType fiMethodType, String fiMethodName) {
-            return makeFactory(callback, factoryReturnType, fiMethodType, fiMethodName);
-        }
-
-        private static MethodHandle makeFactory(Method callback,
-                                                MethodType factoryReturnType,
-                                                MethodType fiMethodType, String fiMethodName) {
-            final class DodgyLookup {
-                private DodgyLookup() {}
-                private static final MethodHandles.Lookup INSTANCE;
-                static {
-                    try {
-                        var lookupField = MethodHandles.Lookup.class.getDeclaredField("IMPL_LOOKUP");
-                        UnsafeHacks.setAccessible(lookupField);
-                        INSTANCE = (MethodHandles.Lookup) lookupField.get(null);
-                    } catch (NoSuchFieldException | IllegalAccessException e) {
-                        throw new RuntimeException(e);
-                    }
-                }
-            }
-
-            try {
-                var callbackDeclaredClass = callback.getDeclaringClass();
-                var lookup = DodgyLookup.INSTANCE.in(callbackDeclaredClass);
-                var mh = lookup.unreflect(callback);
-
-                return LambdaMetafactory.metafactory(
-                        lookup, fiMethodName, factoryReturnType, fiMethodType, mh, mh.type()
-                ).getTarget();
-            } catch (Exception e) {
-                throw makeRuntimeException(callback, e);
-            }
-        }
-
-        private static RuntimeException makeRuntimeException(Method callback, Exception e) {
-            return switch (e) {
-                case IllegalAccessException iae -> {
-                    var errMsg = "Failed to create listener";
-                    if (!Modifier.isPublic(callback.getModifiers()))
-                        errMsg += " - is it public?";
-
-                    yield new RuntimeException(errMsg, iae);
-                }
-                case NullPointerException npe -> new RuntimeException(
-                        "Failed to create listener - was given a non-static method without an instance to invoke it with",
-                        npe
-                );
-                default -> new RuntimeException("Failed to create listener", e);
-            };
-        }
-    }
 }

javafmllanguage/src/main/java/net/minecraftforge/fml/javafmlmod/FMLJavaModLoadingContext.java

@@ -5,13 +5,14 @@
 
 package net.minecraftforge.fml.javafmlmod;
 
-import net.minecraftforge.eventbus.api.bus.BusGroup;
+import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.fml.ModLoadingContext;
 
 /**
  * Use the context provided by your language loader in your mod's constructor
  */
-public class FMLJavaModLoadingContext extends ModLoadingContext {
+public class FMLJavaModLoadingContext extends ModLoadingContext
+{
     private final FMLModContainer container;
 
     FMLJavaModLoadingContext(FMLModContainer container) {
@@ -19,10 +20,11 @@ public class FMLJavaModLoadingContext extends ModLoadingContext {
     }
 
     /**
-     * @return The mod's event bus group, to allow subscription to Mod specific events
+     * @return The mod's event bus, to allow subscription to Mod specific events
      */
-    public BusGroup getModBusGroup() {
-        return container.getModBusGroup();
+    public IEventBus getModEventBus()
+    {
+        return container.getEventBus();
     }
 
     /**
@@ -37,15 +39,9 @@ public class FMLJavaModLoadingContext extends ModLoadingContext {
      * Helper to get the right instance from the {@link ModLoadingContext} correctly.
      * @return The FMLJavaMod language specific extension from the ModLoadingContext
      *
-     * @deprecated use {@link FMLJavaModLoadingContext} in your mod constructor. For example: {@snippet :
-     * @Mod("examplemod")
-     * public final class ExampleMod {
-     *     public ExampleMod(FMLJavaModLoadingContext context) {
-     *          // Use context from the param instead of FMLJavaModLoadingContext.get() or ModLoadingContext.get()
-     *     }
-     * }}
+     * @deprecated use {@link FMLJavaModLoadingContext} in your mod constructor
      */
-    @Deprecated(forRemoval = true, since = "1.21.1")
+    @Deprecated(forRemoval = true, since="1.21.1")
     public static FMLJavaModLoadingContext get() {
         return ModLoadingContext.get().extension();
     }

javafmllanguage/src/main/java/net/minecraftforge/fml/javafmlmod/FMLModContainer.java

@@ -5,8 +5,11 @@
 
 package net.minecraftforge.fml.javafmlmod;
 
-import net.minecraftforge.eventbus.api.bus.BusGroup;
-import net.minecraftforge.eventbus.api.bus.EventBus;
+import net.minecraftforge.eventbus.EventBusErrorMessage;
+import net.minecraftforge.eventbus.api.BusBuilder;
+import net.minecraftforge.eventbus.api.Event;
+import net.minecraftforge.eventbus.api.IEventBus;
+import net.minecraftforge.eventbus.api.IEventListener;
 import net.minecraftforge.fml.ModContainer;
 import net.minecraftforge.fml.ModLoadingException;
 import net.minecraftforge.fml.ModLoadingStage;
@@ -33,7 +36,7 @@ public class FMLModContainer extends ModContainer {
     private static final Logger LOGGER = LogManager.getLogger();
     private static final Marker LOADING = MarkerManager.getMarker("LOADING");
     private final ModFileScanData scanResults;
-    private final BusGroup eventBusGroup;
+    private final IEventBus eventBus;
     private Object modInstance;
     private final Class<?> modClass;
     private final FMLJavaModLoadingContext context = new FMLJavaModLoadingContext(this);
@@ -43,13 +46,12 @@ public class FMLModContainer extends ModContainer {
         LOGGER.debug(LOADING,"Creating FMLModContainer instance for {}", className);
         this.scanResults = modFileScanResults;
         activityMap.put(ModLoadingStage.CONSTRUCT, this::constructMod);
-        this.eventBusGroup = BusGroup.create("modBusFor" + info.getModId(), IModBusEvent.class);
+        this.eventBus = BusBuilder.builder().setExceptionHandler(FMLModContainer::onEventFailed).setTrackPhases(false).markerType(IModBusEvent.class).useModLauncher().build();
         this.contextExtension = () -> context;
         try {
             var moduleName = info.getOwningFile().moduleName();
-            var module = gameLayer.findModule(moduleName).orElse(null);
-            if (module == null)
-                throw new IllegalStateException("Failed to find " + moduleName + " in " + gameLayer);
+            var module = gameLayer.findModule(moduleName)
+                .orElseThrow(() -> new IllegalStateException("Failed to find " + moduleName + " in " + gameLayer));
 
             openModules(gameLayer, module, info.getOwningFile().getFile().getSecureJar());
 
@@ -126,6 +128,10 @@ public class FMLModContainer extends ModContainer {
         implAddExportsOrOpens.invoke(target, pkg, reader, open, /*syncVM*/true);
     }
 
+    private static void onEventFailed(IEventBus iEventBus, Event event, IEventListener[] iEventListeners, int i, Throwable throwable) {
+        LOGGER.error(new EventBusErrorMessage(event, i, iEventListeners, throwable));
+    }
+
     private void constructMod() {
         try {
             LOGGER.trace(LOADING, "Loading mod instance {} of type {}", getModId(), modClass.getName());
@@ -167,18 +173,15 @@ public class FMLModContainer extends ModContainer {
         return modInstance;
     }
 
-    @Override
-    public BusGroup getModBusGroup() {
-        return this.eventBusGroup;
+    public IEventBus getEventBus() {
+        return this.eventBus;
     }
 
     @Override
-    protected <T extends IModBusEvent> void acceptEvent(final T e) {
+    protected <T extends Event & IModBusEvent> void acceptEvent(final T e) {
         try {
             LOGGER.trace(LOADING, "Firing event for modid {} : {}", this.getModId(), e);
-            @SuppressWarnings("unchecked")
-            var eventBus = (EventBus<T>) IModBusEvent.getBus(eventBusGroup, e.getClass());
-            eventBus.post(e);
+            this.eventBus.post(e);
             LOGGER.trace(LOADING, "Fired event for modid {} : {}", this.getModId(), e);
         } catch (Throwable t) {
             LOGGER.error(LOADING,"Caught exception during event {} dispatch for modid {}", e, this.getModId(), t);
@@ -187,14 +190,12 @@ public class FMLModContainer extends ModContainer {
     }
 
     @Override
-    @SuppressWarnings({"rawtypes", "unchecked"})
     public void dispatchConfigEvent(IConfigEvent event) {
-        var eventBus = (EventBus) EventBus.create(eventBusGroup, event.self().getClass());
-        eventBus.post(event.self());
+        this.eventBus.post(event.self());
     }
 
     @Override
     public String toString() {
-        return "FMLModContainer[" + this.getModInfo().getModId() + ", " + this.getClass().getName() + ']';
+        return "FMLModContainer[" + this.getModInfo().getModId() + ", " + this.getClass().getName() + "]";
     }
 }

lowcodelanguage/build.gradle

@@ -15,7 +15,7 @@ java {
 }
 
 dependencies {
-    compileOnly(libs.jetbrains.annotations)
+    compileOnly(libs.nulls)
 
     implementation(project(':fmlloader'))
     implementation(project(':fmlcore'))

lowcodelanguage/src/main/java/net/minecraftforge/fml/lowcodemod/LowCodeModContainer.java

@@ -6,32 +6,41 @@
 package net.minecraftforge.fml.lowcodemod;
 
 import com.mojang.logging.LogUtils;
+import net.minecraftforge.eventbus.api.Event;
 import net.minecraftforge.fml.IExtensionPoint;
 import net.minecraftforge.fml.ModContainer;
-import net.minecraftforge.fml.loading.LogMarkers;
+import net.minecraftforge.fml.event.IModBusEvent;
 import net.minecraftforge.forgespi.language.IModInfo;
 import net.minecraftforge.forgespi.language.ModFileScanData;
 import org.slf4j.Logger;
 
-public class LowCodeModContainer extends ModContainer {
+import java.util.Objects;
+
+import static net.minecraftforge.fml.loading.LogMarkers.LOADING;
+
+public class LowCodeModContainer extends ModContainer
+{
     private static final Logger LOGGER = LogUtils.getLogger();
     private final Object modInstance;
 
-    public LowCodeModContainer(IModInfo info, ModFileScanData modFileScanResults, ModuleLayer gameLayer) {
+    public LowCodeModContainer(IModInfo info, ModFileScanData modFileScanResults, ModuleLayer gameLayer)
+    {
         super(info);
-        LOGGER.debug(LogMarkers.LOADING, "Creating LowCodeModContainer for {}", info.getModId());
+        LOGGER.debug(LOADING, "Creating LowCodeModContainer for {}", info.getModId());
         this.modInstance = new Object();
         this.contextExtension = () -> null;
         this.extensionPoints.remove(IExtensionPoint.DisplayTest.class);
     }
 
     @Override
-    public boolean matches(Object mod) {
+    public boolean matches(Object mod)
+    {
         return mod == modInstance;
     }
 
     @Override
-    public Object getMod() {
+    public Object getMod()
+    {
         return modInstance;
     }
 }

mclanguage/build.gradle

@@ -10,7 +10,7 @@ plugins {
 apply from: rootProject.file('build_shared.gradle')
 
 dependencies {
-    compileOnly(libs.jetbrains.annotations)
+    compileOnly(libs.nulls)
     implementation(project(':fmlloader'))
     implementation(project(':fmlcore'))
 }

mclanguage/src/main/java/net/minecraftforge/fml/mclanguageprovider/MinecraftModContainer.java

@@ -8,6 +8,8 @@ package net.minecraftforge.fml.mclanguageprovider;
 import net.minecraftforge.fml.ModContainer;
 import net.minecraftforge.forgespi.language.IModInfo;
 
+import java.util.Objects;
+
 public class MinecraftModContainer extends ModContainer {
     private static final String MCMODINSTANCE = "minecraft, the mod";
 
@@ -18,7 +20,7 @@ public class MinecraftModContainer extends ModContainer {
 
     @Override
     public boolean matches(final Object mod) {
-        return MCMODINSTANCE.equals(mod);
+        return Objects.equals(mod, MCMODINSTANCE);
     }
 
     @Override

mclanguage/src/main/java/net/minecraftforge/fml/mclanguageprovider/MinecraftModLanguageProvider.java

@@ -10,6 +10,7 @@ import net.minecraftforge.forgespi.language.IModInfo;
 import net.minecraftforge.forgespi.language.IModLanguageProvider;
 import net.minecraftforge.forgespi.language.ModFileScanData;
 import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import java.lang.reflect.InvocationTargetException;
 import java.util.Map;
@@ -19,7 +20,7 @@ import java.util.function.Supplier;
 import static net.minecraftforge.fml.Logging.LOADING;
 
 public class MinecraftModLanguageProvider implements IModLanguageProvider {
-
+    private static final Logger LOGGER = LogManager.getLogger();
     @Override
     public String name() {
         return "minecraft";
@@ -44,7 +45,7 @@ public class MinecraftModLanguageProvider implements IModLanguageProvider {
                 final Class<?> mcModClass = Class.forName(getClass().getModule(), "net.minecraftforge.fml.mclanguageprovider.MinecraftModContainer");
                 return (T)mcModClass.getConstructor(IModInfo.class).newInstance(info);
             } catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
-                LogManager.getLogger().fatal(LOADING, "Unable to load MinecraftModContainer, wut?", e);
+                LOGGER.fatal(LOADING,"Unable to load MinecraftModContainer, wut?", e);
                 throw new RuntimeException(e);
             }
         }

mdk/build.gradle

@@ -25,7 +25,6 @@ minecraft {
         configureEach {
             workingDir = layout.projectDirectory.dir('run')
 
-            systemProperty 'eventbus.api.strictRuntimeChecks', 'true'
             systemProperty 'forge.enabledGameTestNamespaces', 'examplemod'
         }
 
@@ -54,7 +53,6 @@ repositories {
 
 dependencies {
     implementation minecraft.dependency('net.minecraftforge:forge:@MC_VERSION@-@FORGE_VERSION@')
-    annotationProcessor 'net.minecraftforge:eventbus-validator:@EVENTBUS_VERSION@'
 }
 
 tasks.withType(JavaCompile).configureEach {

mdk/src/main/resources/META-INF/mods.toml

@@ -19,6 +19,12 @@ displayName="Example Mod"
 authors="YourNameHere, OtherNameHere" #optional
 #displayTest="MATCH_VERSION" #optional, default=MATCH_VERSION when not clientSideOnly, else IGNORE_ALL_VERSION
 
+# Access Transformers
+# Optional, if not specified Forge will attempt to find the default META-INF/accesstransformer.cfg and silently continue if not found. May default to an empty list in a future MC.
+# If you specify AT path strings in this list, Forge will attempt to load each of them and throw errors for any that aren't found.
+# Specifying an empty list when your mod has no ATs is recommended to opt-out of the default for slightly better loading performance.
+#accessTransformers = []
+
 description='''Example mod description.
 Newline characters can be used like this, and rendered on the mods screen properly.'''
 

patches/minecraft/com/mojang/blaze3d/opengl/GlCommandEncoder.java.patch

@@ -1,6 +1,6 @@
 --- a/com/mojang/blaze3d/opengl/GlCommandEncoder.java
 +++ b/com/mojang/blaze3d/opengl/GlCommandEncoder.java
-@@ -133,6 +_,9 @@
+@@ -109,6 +_,9 @@
              GlStateManager._colorMask(true, true, true, true);
              GlStateManager._clear(16384);
              GlStateManager._glFramebufferTexture2D(36160, 36064, 3553, 0, 0);

patches/minecraft/com/mojang/blaze3d/opengl/GlDebug.java.patch

@@ -1,6 +1,6 @@
 --- a/com/mojang/blaze3d/opengl/GlDebug.java
 +++ b/com/mojang/blaze3d/opengl/GlDebug.java
-@@ -24,6 +_,14 @@
+@@ -23,6 +_,14 @@
  
  @OnlyIn(Dist.CLIENT)
  public class GlDebug {
@@ -24,10 +24,10 @@
      }
  
      public List<String> getLastOpenGlDebugMessages() {
-@@ -120,6 +_,7 @@
-     }
+@@ -121,6 +_,7 @@
  
-     public static @Nullable GlDebug enableDebugCallback(int p_394351_, boolean p_393026_, Set<String> p_393339_) {
+     @Nullable
+     public static GlDebug enableDebugCallback(int p_394351_, boolean p_393026_, Set<String> p_393339_) {
 +        p_393026_ |= PRINT_STACKTRACE_ON_ERROR;
          if (p_394351_ <= 0) {
              return null;

patches/minecraft/com/mojang/blaze3d/opengl/GlDevice.java.patch

@@ -1,74 +1,53 @@
 --- a/com/mojang/blaze3d/opengl/GlDevice.java
 +++ b/com/mojang/blaze3d/opengl/GlDevice.java
-@@ -124,8 +_,15 @@
-         int p_407582_,
-         int p_408928_
-     ) {
-+        return createTexture(p_397830_, p_394481_, p_394839_, p_391831_, p_395609_, p_407582_, p_408928_, false);
+@@ -80,11 +_,25 @@
+ 
+     @Override
+     public GpuTexture createTexture(@Nullable Supplier<String> p_397830_, TextureFormat p_394839_, int p_394481_, int p_391831_, int p_395609_) {
+-        return this.createTexture(this.debugLabels.exists() && p_397830_ != null ? p_397830_.get() : null, p_394839_, p_394481_, p_391831_, p_395609_);
++        return this.createTexture(p_397830_, p_394839_, p_394481_, p_391831_, p_395609_, false);
 +    }
 +
++    /** @see GpuDevice#createTexture(Supplier, TextureFormat, int, int, int, boolean) */
 +    @Override
-+    public GpuTexture createTexture(
-+            @Nullable Supplier<String> p_397830_, int p_394481_, TextureFormat p_394839_, int p_391831_, int p_395609_, int p_407582_, int p_408928_, boolean stencil
-+        ) {
-         return this.createTexture(
--            this.debugLabels.exists() && p_397830_ != null ? p_397830_.get() : null, p_394481_, p_394839_, p_391831_, p_395609_, p_407582_, p_408928_
-+            this.debugLabels.exists() && p_397830_ != null ? p_397830_.get() : null, p_394481_, p_394839_, p_391831_, p_395609_, p_407582_, p_408928_, stencil
-         );
++    public GpuTexture createTexture(@Nullable Supplier<String> p_397830_, TextureFormat p_394839_, int p_394481_, int p_391831_, int p_395609_, boolean stencil) {
++        return this.createTexture(this.debugLabels.exists() && p_397830_ != null ? p_397830_.get() : null, p_394839_, p_394481_, p_391831_, p_395609_, stencil);
      }
  
-@@ -133,6 +_,15 @@
-     public GpuTexture createTexture(
-         @Nullable String p_394142_, @GpuTexture.Usage int p_395535_, TextureFormat p_394951_, int p_393944_, int p_392329_, int p_408015_, int p_406483_
-     ) {
-+        return createTexture(p_394142_, p_395535_, p_394951_, p_393944_, p_392329_, p_408015_, p_406483_, false);
+     @Override
+     public GpuTexture createTexture(@Nullable String p_394142_, TextureFormat p_394951_, int p_395535_, int p_393944_, int p_392329_) {
++        return this.createTexture(p_394142_, p_394951_, p_395535_, p_393944_, p_392329_, false);
 +    }
 +
++    /** @see GpuDevice#createTexture(String, TextureFormat, int, int, int, boolean) */
 +    @Override
-+    public GpuTexture createTexture(
-+        @Nullable String p_394142_, @GpuTexture.Usage int p_395535_, TextureFormat p_394951_, int p_393944_, int p_392329_, int p_408015_, int p_406483_, boolean stencil
-+    ) {
++    public GpuTexture createTexture(@Nullable String p_394142_, TextureFormat p_394951_, int p_395535_, int p_393944_, int p_392329_, boolean stencil) {
 +        // Forge: stencil rendering is only for depth
 +        stencil &= p_394951_.hasDepthAspect();
-         if (p_406483_ < 1) {
+         if (p_392329_ < 1) {
              throw new IllegalArgumentException("mipLevels must be at least 1");
-         } else if (p_408015_ < 1) {
-@@ -183,11 +_,14 @@
-                         GlStateManager._texImage2D(
-                             k,
-                             l,
-+                            stencil ? org.lwjgl.opengl.GL30.GL_DEPTH32F_STENCIL8 :
-                             GlConst.toGlInternalId(p_394951_),
-                             p_393944_ >> l,
-                             p_392329_ >> l,
-                             0,
-+                            stencil ? org.lwjgl.opengl.GL30.GL_DEPTH_STENCIL :
-                             GlConst.toGlExternalId(p_394951_),
-+                            stencil ? org.lwjgl.opengl.GL30.GL_FLOAT_32_UNSIGNED_INT_24_8_REV :
-                             GlConst.toGlType(p_394951_),
-                             null
-                         );
-@@ -198,11 +_,14 @@
-                     GlStateManager._texImage2D(
-                         j,
-                         i1,
-+                        stencil ? org.lwjgl.opengl.GL30.GL_DEPTH32F_STENCIL8 :
-                         GlConst.toGlInternalId(p_394951_),
-                         p_393944_ >> i1,
-                         p_392329_ >> i1,
-                         0,
-+                        stencil ? org.lwjgl.opengl.GL30.GL_DEPTH_STENCIL :
-                         GlConst.toGlExternalId(p_394951_),
-+                        stencil ? org.lwjgl.opengl.GL30.GL_FLOAT_32_UNSIGNED_INT_24_8_REV :
-                         GlConst.toGlType(p_394951_),
-                         null
-                     );
-@@ -215,7 +_,7 @@
-             } else if (j1 != 0) {
-                 throw new IllegalStateException("OpenGL error " + j1);
+         } else {
+@@ -106,11 +_,14 @@
+                 GlStateManager._texImage2D(
+                     3553,
+                     j,
++                    stencil ? org.lwjgl.opengl.GL30.GL_DEPTH32F_STENCIL8 :
+                     GlConst.toGlInternalId(p_394951_),
+                     p_395535_ >> j,
+                     p_393944_ >> j,
+                     0,
++                    stencil ? org.lwjgl.opengl.GL30.GL_DEPTH_STENCIL :
+                     GlConst.toGlExternalId(p_394951_),
++                    stencil ? org.lwjgl.opengl.GL30.GL_FLOAT_32_UNSIGNED_INT_24_8_REV :
+                     GlConst.toGlType(p_394951_),
+                     null
+                 );
+@@ -122,7 +_,7 @@
+             } else if (k != 0) {
+                 throw new IllegalStateException("OpenGL error " + k);
              } else {
--                GlTexture gltexture = new GlTexture(p_395535_, p_394142_, p_394951_, p_393944_, p_392329_, p_408015_, p_406483_, i);
-+                GlTexture gltexture = new GlTexture(p_395535_, p_394142_, p_394951_, p_393944_, p_392329_, p_408015_, p_406483_, i, stencil);
+-                GlTexture gltexture = new GlTexture(p_394142_, p_394951_, p_395535_, p_393944_, p_392329_, i);
++                GlTexture gltexture = new GlTexture(p_394142_, p_394951_, p_395535_, p_393944_, p_392329_, i, stencil);
                  this.debugLabels.applyLabel(gltexture);
                  return gltexture;
              }

patches/minecraft/com/mojang/blaze3d/opengl/GlStateManager.java.patch

@@ -1,6 +1,6 @@
 --- a/com/mojang/blaze3d/opengl/GlStateManager.java
 +++ b/com/mojang/blaze3d/opengl/GlStateManager.java
-@@ -86,6 +_,11 @@
+@@ -90,6 +_,11 @@
          }
      }
  
@@ -12,7 +12,7 @@
      public static void _disableBlend() {
          RenderSystem.assertOnRenderThread();
          BLEND.mode.disable();
-@@ -371,9 +_,17 @@
+@@ -411,9 +_,17 @@
          }
      }
  

patches/minecraft/com/mojang/blaze3d/opengl/GlTexture.java.patch

@@ -1,25 +1,28 @@
 --- a/com/mojang/blaze3d/opengl/GlTexture.java
 +++ b/com/mojang/blaze3d/opengl/GlTexture.java
-@@ -21,8 +_,13 @@
-     protected GlTexture(
-         @GpuTexture.Usage int p_394590_, String p_393950_, TextureFormat p_392837_, int p_391379_, int p_391947_, int p_396659_, int p_408255_, int p_408889_
-     ) {
-+        this(p_394590_, p_393950_, p_392837_, p_391379_, p_391947_, p_396659_, p_408255_, p_408889_, false);
+@@ -18,8 +_,13 @@
+     protected boolean modesDirty = true;
+ 
+     protected GlTexture(String p_393950_, TextureFormat p_392837_, int p_394590_, int p_391379_, int p_391947_, int p_396659_) {
++        this(p_393950_, p_392837_, p_394590_, p_391379_, p_391947_, p_396659_, false);
 +    }
 +
-+    protected GlTexture(int p_394590_, String p_393950_, TextureFormat p_392837_, int p_391379_, int p_391947_, int p_396659_, int p_408255_, int p_408889_, boolean stencil) {
-         super(p_394590_, p_393950_, p_392837_, p_391379_, p_391947_, p_396659_, p_408255_);
-         this.id = p_408889_;
++    protected GlTexture(String p_393950_, TextureFormat p_392837_, int p_394590_, int p_391379_, int p_391947_, int p_396659_, boolean stencil) {
+         super(p_393950_, p_392837_, p_394590_, p_391379_, p_391947_);
+         this.id = p_396659_;
 +        this.stencilEnabled = stencil;
      }
  
      @Override
-@@ -89,5 +_,12 @@
-         if (this.closed && this.views == 0) {
-             this.destroyImmediately();
-         }
+@@ -86,5 +_,15 @@
+     public void setTextureFilter(FilterMode p_394977_, FilterMode p_397175_, boolean p_393558_) {
+         super.setTextureFilter(p_394977_, p_397175_, p_393558_);
+         this.modesDirty = true;
 +    }
 +
++
++    /* FORGE START */
++
 +    private final boolean stencilEnabled;
 +
 +    @Override

patches/minecraft/com/mojang/blaze3d/pipeline/RenderTarget.java.patch

@@ -1,18 +1,18 @@
 --- a/com/mojang/blaze3d/pipeline/RenderTarget.java
 +++ b/com/mojang/blaze3d/pipeline/RenderTarget.java
-@@ -80,7 +_,7 @@
+@@ -75,7 +_,7 @@
              this.width = p_83951_;
              this.height = p_83952_;
              if (this.useDepth) {
--                this.depthTexture = gpudevice.createTexture(() -> this.label + " / Depth", 15, TextureFormat.DEPTH32, p_83951_, p_83952_, 1, 1);
-+                this.depthTexture = gpudevice.createTexture(() -> this.label + " / Depth", 15, TextureFormat.DEPTH32, p_83951_, p_83952_, 1, 1, this.stencilEnabled);
-                 this.depthTextureView = gpudevice.createTextureView(this.depthTexture);
+-                this.depthTexture = RenderSystem.getDevice().createTexture(() -> this.label + " / Depth", TextureFormat.DEPTH32, p_83951_, p_83952_, 1);
++                this.depthTexture = RenderSystem.getDevice().createTexture(() -> this.label + " / Depth", TextureFormat.DEPTH32, p_83951_, p_83952_, 1, this.stencilEnabled);
+                 this.depthTexture.setTextureFilter(FilterMode.NEAREST, false);
+                 this.depthTexture.setAddressMode(AddressMode.CLAMP_TO_EDGE);
              }
- 
-@@ -126,5 +_,26 @@
- 
-     public @Nullable GpuTextureView getDepthTextureView() {
-         return this.depthTextureView;
+@@ -134,5 +_,26 @@
+     @Nullable
+     public GpuTexture getDepthTexture() {
+         return this.depthTexture;
 +    }
 +
 +    private boolean stencilEnabled = false;
@@ -25,7 +25,7 @@
 +    public void enableStencil() {
 +        if (stencilEnabled) return;
 +        stencilEnabled = true;
-+        this.resize(width, height);
++        this.resize(viewWidth, viewHeight);
 +    }
 +
 +    /**

patches/minecraft/com/mojang/blaze3d/platform/Window.java.patch

@@ -1,16 +1,16 @@
 --- a/com/mojang/blaze3d/platform/Window.java
 +++ b/com/mojang/blaze3d/platform/Window.java
-@@ -91,7 +_,8 @@
-         GLFW.glfwWindowHint(139267, 3);
+@@ -88,7 +_,8 @@
+         GLFW.glfwWindowHint(139267, 2);
          GLFW.glfwWindowHint(139272, 204801);
          GLFW.glfwWindowHint(139270, 1);
--        this.handle = GLFW.glfwCreateWindow(this.width, this.height, p_85376_, this.fullscreen && monitor != null ? monitor.getMonitor() : 0L, 0L);
-+        this.handle = net.minecraftforge.fml.loading.ImmediateWindowHandler.setupMinecraftWindow(()->this.width, ()->this.height, ()->p_85376_, ()->this.fullscreen && monitor != null ? monitor.getMonitor() : 0L);
+-        this.window = GLFW.glfwCreateWindow(this.width, this.height, p_85376_, this.fullscreen && monitor != null ? monitor.getMonitor() : 0L, 0L);
++        this.window = net.minecraftforge.fml.loading.ImmediateWindowHandler.setupMinecraftWindow(()->this.width, ()->this.height, ()->p_85376_, ()->this.fullscreen && monitor != null ? monitor.getMonitor() : 0L);
 +        if (!net.minecraftforge.fml.loading.ImmediateWindowHandler.positionWindow(Optional.ofNullable(monitor), w->this.width = this.windowedWidth = w, h->this.height = this.windowedHeight = h, x->this.x = this.windowedX = x, y->this.y = this.windowedY = y)) {
          if (monitor != null) {
              VideoMode videomode = monitor.getPreferredVidMode(this.fullscreen ? this.preferredFullscreenVideoMode : Optional.empty());
              this.windowedX = this.x = monitor.getX() + videomode.getWidth() / 2 - this.width / 2;
-@@ -103,6 +_,7 @@
+@@ -100,6 +_,7 @@
              this.windowedX = this.x = aint1[0];
              this.windowedY = this.y = aint[0];
          }
@@ -18,8 +18,8 @@
  
          this.setMode();
          this.refreshFramebufferSize();
-@@ -269,6 +_,9 @@
-         GLFW.glfwGetFramebufferSize(this.handle, aint, aint1);
+@@ -266,6 +_,9 @@
+         GLFW.glfwGetFramebufferSize(this.window, aint, aint1);
          this.framebufferWidth = aint[0] > 0 ? aint[0] : 1;
          this.framebufferHeight = aint1[0] > 0 ? aint1[0] : 1;
 +        if (this.framebufferHeight == 0 || this.framebufferWidth == 0) {

patches/minecraft/com/mojang/blaze3d/systems/GpuDevice.java.patch

@@ -1,22 +1,20 @@
 --- a/com/mojang/blaze3d/systems/GpuDevice.java
 +++ b/com/mojang/blaze3d/systems/GpuDevice.java
-@@ -36,9 +_,19 @@
-         int p_407070_
-     );
+@@ -25,7 +_,17 @@
  
-+    /** Forge: same as {@link #createTexture(Supplier, int, TextureFormat, int, int, int)} but with stencil support */
-+    default GpuTexture createTexture(@Nullable Supplier<String> p_394357_, int p_395623_, TextureFormat p_395807_, int p_395802_, int p_396157_, int p_408810_, int p_407070_, boolean stencil) {
-+        return this.createTexture(p_394357_, p_395623_, p_395807_, p_395802_, p_396157_, p_408810_, p_407070_);
+     GpuTexture createTexture(@Nullable Supplier<String> p_394357_, TextureFormat p_395807_, int p_395623_, int p_395802_, int p_396157_);
+ 
++    /** Forge: same as {@link #createTexture(Supplier, TextureFormat, int, int, int)} but with stencil support */
++    default GpuTexture createTexture(@Nullable Supplier<String> p_394357_, TextureFormat p_395807_, int p_395623_, int p_395802_, int p_396157_, boolean stencil) {
++        return this.createTexture(p_394357_, p_395807_, p_395623_, p_395802_, p_396157_);
 +    }
 +
-     GpuTexture createTexture(
-         @Nullable String p_391798_, @GpuTexture.Usage int p_391800_, TextureFormat p_393333_, int p_395600_, int p_394065_, int p_408732_, int p_407125_
-     );
+     GpuTexture createTexture(@Nullable String p_391798_, TextureFormat p_393333_, int p_391800_, int p_395600_, int p_394065_);
 +
-+    /** Forge: same as {@link #createTexture(String, int, TextureFormat, int, int, int)} but with stencil support */
-+    default GpuTexture createTexture(@Nullable String p_391798_, int p_391800_, TextureFormat p_393333_, int p_395600_, int p_394065_, int p_408732_, int p_407125_, boolean stencil) {
-+        return this.createTexture(p_391798_, p_391800_, p_393333_, p_395600_, p_394065_, p_408732_, p_407125_);
++    /** Forge: same as {@link #createTexture(String, TextureFormat, int, int, int)} but with stencil support */
++    default GpuTexture createTexture(@Nullable String p_391798_, TextureFormat p_393333_, int p_391800_, int p_395600_, int p_394065_, boolean stencil) {
++        return this.createTexture(p_391798_, p_393333_, p_391800_, p_395600_, p_394065_);
 +    }
  
-     GpuTextureView createTextureView(GpuTexture p_409045_);
+     GpuBuffer createBuffer(@Nullable Supplier<String> p_395215_, BufferType p_392847_, BufferUsage p_391478_, int p_397054_);
  

patches/minecraft/com/mojang/blaze3d/textures/GpuTexture.java.patch

@@ -1,11 +1,11 @@
 --- a/com/mojang/blaze3d/textures/GpuTexture.java
 +++ b/com/mojang/blaze3d/textures/GpuTexture.java
-@@ -10,7 +_,7 @@
+@@ -6,7 +_,7 @@
  
  @OnlyIn(Dist.CLIENT)
  @DontObfuscate
 -public abstract class GpuTexture implements AutoCloseable {
 +public abstract class GpuTexture implements AutoCloseable, net.minecraftforge.client.extensions.IForgeGpuTexture {
-     public static final int USAGE_COPY_DST = 1;
-     public static final int USAGE_COPY_SRC = 2;
-     public static final int USAGE_TEXTURE_BINDING = 4;
+     private final TextureFormat format;
+     private final int width;
+     private final int height;

patches/minecraft/com/mojang/blaze3d/vertex/VertexConsumer.java.patch

@@ -1,7 +1,7 @@
 --- a/com/mojang/blaze3d/vertex/VertexConsumer.java
 +++ b/com/mojang/blaze3d/vertex/VertexConsumer.java
-@@ -14,7 +_,7 @@
- import org.joml.Vector3fc;
+@@ -13,7 +_,7 @@
+ import org.lwjgl.system.MemoryStack;
  
  @OnlyIn(Dist.CLIENT)
 -public interface VertexConsumer {
@@ -9,3 +9,15 @@
      VertexConsumer addVertex(float p_344294_, float p_342213_, float p_344859_);
  
      VertexConsumer setColor(int p_342749_, int p_344324_, int p_343336_, int p_342831_);
+@@ -133,9 +_,11 @@
+ 
+                 int j1 = ARGB.color(k, (int)f3, (int)f4, (int)f5);
+                 int k1 = LightTexture.lightCoordsWithEmission(p_331444_[i1], l);
++                k1 = applyBakedLighting(k1, bytebuffer);
+                 float f10 = bytebuffer.getFloat(16);
+                 float f9 = bytebuffer.getFloat(20);
+                 Vector3f vector3f1 = matrix4f.transformPosition(f, f1, f2, new Vector3f());
++                applyBakedNormals(vector3f, bytebuffer, p_85988_.normal());
+                 this.addVertex(vector3f1.x(), vector3f1.y(), vector3f1.z(), j1, f10, f9, p_85993_, k1, vector3f.x(), vector3f.y(), vector3f.z());
+             }
+         }

patches/minecraft/com/mojang/blaze3d/vertex/VertexFormat.java.patch

@@ -9,15 +9,15 @@
      public static final int UNKNOWN_ELEMENT = -1;
      private final List<VertexFormatElement> elements;
      private final List<String> names;
-@@ -29,6 +_,7 @@
-     private final int[] offsetsByElement = new int[32];
-     private @Nullable GpuBuffer immediateDrawVertexBuffer;
-     private @Nullable GpuBuffer immediateDrawIndexBuffer;
+@@ -31,6 +_,7 @@
+     private GpuBuffer immediateDrawVertexBuffer;
+     @Nullable
+     private GpuBuffer immediateDrawIndexBuffer;
 +    private final com.google.common.collect.ImmutableMap<String, VertexFormatElement> elementMapping;
  
      VertexFormat(List<VertexFormatElement> p_343616_, List<String> p_345241_, IntList p_345522_, int p_344162_) {
          this.elements = p_343616_;
-@@ -41,6 +_,11 @@
+@@ -43,6 +_,11 @@
              int j = vertexformatelement != null ? p_343616_.indexOf(vertexformatelement) : -1;
              this.offsetsByElement[i] = j != -1 ? p_345522_.getInt(j) : -1;
          }
@@ -29,8 +29,8 @@
      }
  
      public static VertexFormat.Builder builder() {
-@@ -139,6 +_,9 @@
-         this.immediateDrawIndexBuffer = uploadToBuffer(this.immediateDrawIndexBuffer, p_391835_, 72, () -> "Immediate index buffer for " + this);
+@@ -146,6 +_,9 @@
+ 
          return this.immediateDrawIndexBuffer;
      }
 +

patches/minecraft/com/mojang/math/Transformation.java.patch

@@ -1,18 +1,18 @@
 --- a/com/mojang/math/Transformation.java
 +++ b/com/mojang/math/Transformation.java
-@@ -16,7 +_,7 @@
- import org.joml.Vector3fc;
- import org.jspecify.annotations.Nullable;
+@@ -14,7 +_,7 @@
+ import org.joml.Quaternionf;
+ import org.joml.Vector3f;
  
 -public final class Transformation {
 +public final class Transformation implements net.minecraftforge.common.extensions.IForgeTransformation {
      private final Matrix4fc matrix;
      public static final Codec<Transformation> CODEC = RecordCodecBuilder.create(
          p_269604_ -> p_269604_.group(
-@@ -168,5 +_,19 @@
-             this.getScale().lerp(p_175938_.getScale(), p_175939_, new Vector3f()),
-             this.getRightRotation().slerp(p_175938_.getRightRotation(), p_175939_, new Quaternionf())
-         );
+@@ -174,5 +_,19 @@
+         vector3f1.lerp(p_175938_.getScale(), p_175939_);
+         quaternionf1.slerp(p_175938_.getRightRotation(), p_175939_);
+         return new Transformation(vector3f, quaternionf, vector3f1, quaternionf1);
 +    }
 +
 +    private Matrix3f normalTransform = null;

patches/minecraft/com/mojang/realmsclient/gui/screens/RealmsGenericErrorScreen.java.patch

@@ -1,18 +1,18 @@
 --- a/com/mojang/realmsclient/gui/screens/RealmsGenericErrorScreen.java
 +++ b/com/mojang/realmsclient/gui/screens/RealmsGenericErrorScreen.java
-@@ -62,6 +_,15 @@
+@@ -71,6 +_,15 @@
      }
  
      @Override
-+    public boolean keyPressed(net.minecraft.client.input.KeyEvent event) {
-+       if (event.key() == org.lwjgl.glfw.GLFW.GLFW_KEY_ESCAPE) {
++    public boolean keyPressed(int key, int scanCode, int modifiers) {
++       if (key == org.lwjgl.glfw.GLFW.GLFW_KEY_ESCAPE) {
 +          minecraft.setScreen(this.nextScreen);
 +          return true;
 +       }
-+       return super.keyPressed(event);
++       return super.keyPressed(key, scanCode, modifiers);
 +    }
 +
 +    @Override
      public void render(GuiGraphics p_283497_, int p_88680_, int p_88681_, float p_88682_) {
          super.render(p_283497_, p_88680_, p_88681_, p_88682_);
-         p_283497_.drawCenteredString(this.font, this.title, this.width / 2, 80, -1);
+         p_283497_.drawCenteredString(this.font, this.lines.title, this.width / 2, 80, -1);

patches/minecraft/com/mojang/realmsclient/gui/screens/RealmsResetWorldScreen.java.patch

@@ -1,11 +0,0 @@
---- a/com/mojang/realmsclient/gui/screens/RealmsResetWorldScreen.java
-+++ b/com/mojang/realmsclient/gui/screens/RealmsResetWorldScreen.java
-@@ -263,7 +_,7 @@
-             int k = this.getY();
-             p_282595_.blit(RenderPipelines.GUI_TEXTURED, this.image, j + 2, k + 2, 0.0F, 0.0F, 56, 56, 56, 56, 56, 56, i);
-             p_282595_.blitSprite(RenderPipelines.GUI_TEXTURED, SLOT_FRAME_SPRITE, j, k, 60, 60, i);
--            int l = flag ? -6250336 : -1;
-+            int l = getFGColor();
-             p_282595_.drawCenteredString(RealmsResetWorldScreen.this.font, this.getMessage(), j + 28, k - 14, l);
-         }
-     }

patches/minecraft/net/minecraft/CrashReportCategory.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/CrashReportCategory.java
 +++ b/net/minecraft/CrashReportCategory.java
-@@ -116,8 +_,10 @@
+@@ -112,8 +_,10 @@
          if (astacktraceelement.length <= 0) {
              return 0;
          } else {
@@ -13,7 +13,7 @@
              return this.stackTrace.length;
          }
      }
-@@ -164,16 +_,16 @@
+@@ -160,16 +_,16 @@
  
          if (this.stackTrace != null && this.stackTrace.length > 0) {
              p_128169_.append("\nStacktrace:");

patches/minecraft/net/minecraft/SharedConstants.java.patch

@@ -1,10 +1,10 @@
 --- a/net/minecraft/SharedConstants.java
 +++ b/net/minecraft/SharedConstants.java
-@@ -216,6 +_,7 @@
+@@ -171,6 +_,7 @@
      }
  
      static {
 +        if (System.getProperty("io.netty.leakDetection.level") == null) // Forge: allow level to be manually specified
          ResourceLeakDetector.setLevel(NETTY_LEAK_DETECTION);
-         CommandSyntaxException.ENABLE_COMMAND_STACK_TRACES = COMMAND_STACK_TRACES;
+         CommandSyntaxException.ENABLE_COMMAND_STACK_TRACES = false;
          CommandSyntaxException.BUILT_IN_EXCEPTIONS = new BrigadierExceptions();

patches/minecraft/net/minecraft/Util.java.patch

@@ -0,0 +1,11 @@
+--- a/net/minecraft/Util.java
++++ b/net/minecraft/Util.java
+@@ -268,7 +_,7 @@
+                 .getSchema(DataFixUtils.makeKey(SharedConstants.getCurrentVersion().getDataVersion().getVersion()))
+                 .getChoiceType(p_137552_, p_137553_);
+         } catch (IllegalArgumentException illegalargumentexception) {
+-            LOGGER.error("No data fixer registered for {}", p_137553_);
++            LOGGER.debug("No data fixer registered for {}", p_137553_);
+             if (SharedConstants.IS_RUNNING_IN_IDE) {
+                 throw illegalargumentexception;
+             }

patches/minecraft/net/minecraft/advancements/Advancement.java.patch

@@ -1,14 +1,14 @@
 --- a/net/minecraft/advancements/Advancement.java
 +++ b/net/minecraft/advancements/Advancement.java
-@@ -231,7 +_,11 @@
+@@ -226,7 +_,11 @@
          }
  
          public AdvancementHolder save(Consumer<AdvancementHolder> p_138390_, String p_138391_) {
--            AdvancementHolder advancementholder = this.build(Identifier.parse(p_138391_));
-+            return save(p_138390_, Identifier.parse(p_138391_));
+-            AdvancementHolder advancementholder = this.build(ResourceLocation.parse(p_138391_));
++            return save(p_138390_, ResourceLocation.parse(p_138391_));
 +        }
 +
-+        public AdvancementHolder save(Consumer<AdvancementHolder> p_138390_, Identifier id) {
++        public AdvancementHolder save(Consumer<AdvancementHolder> p_138390_, ResourceLocation id) {
 +            AdvancementHolder advancementholder = this.build(id);
              p_138390_.accept(advancementholder);
              return advancementholder;

patches/minecraft/net/minecraft/advancements/AdvancementRewards.java.patch

@@ -1,7 +1,7 @@
 --- a/net/minecraft/advancements/AdvancementRewards.java
 +++ b/net/minecraft/advancements/AdvancementRewards.java
-@@ -44,6 +_,7 @@
-         LootParams lootparams = new LootParams.Builder(serverlevel)
+@@ -40,6 +_,7 @@
+         LootParams lootparams = new LootParams.Builder(p_9990_.serverLevel())
              .withParameter(LootContextParams.THIS_ENTITY, p_9990_)
              .withParameter(LootContextParams.ORIGIN, p_9990_.position())
 +            .withLuck(p_9990_.getLuck())

patches/minecraft/net/minecraft/client/Camera.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/client/Camera.java
 +++ b/net/minecraft/client/Camera.java
-@@ -136,9 +_,13 @@
+@@ -118,9 +_,13 @@
      }
  
      protected void setRotation(float p_90573_, float p_90574_) {
@@ -15,10 +15,10 @@
          FORWARDS.rotate(this.rotation, this.forwards);
          UP.rotate(this.rotation, this.up);
          LEFT.rotate(this.rotation, this.left);
-@@ -168,6 +_,13 @@
+@@ -236,6 +_,13 @@
  
-     public float yRot() {
-         return this.yRot;
+     public float getPartialTickTime() {
+         return this.partialTickTime;
 +    }
 +
 +    public net.minecraft.world.level.block.state.BlockState getBlockAtCamera() {
@@ -28,4 +28,4 @@
 +            return this.level.getBlockState(this.blockPosition).getStateAtViewpoint(this.level, this.blockPosition, this.position);
      }
  
-     @Override
+     @OnlyIn(Dist.CLIENT)

patches/minecraft/net/minecraft/client/KeyMapping.java.patch

@@ -1,27 +1,35 @@
 --- a/net/minecraft/client/KeyMapping.java
 +++ b/net/minecraft/client/KeyMapping.java
-@@ -19,9 +_,9 @@
- import org.jspecify.annotations.Nullable;
+@@ -15,9 +_,9 @@
+ import net.minecraftforge.api.distmarker.OnlyIn;
  
  @OnlyIn(Dist.CLIENT)
 -public class KeyMapping implements Comparable<KeyMapping> {
 +public class KeyMapping implements Comparable<KeyMapping>, net.minecraftforge.client.extensions.IForgeKeyMapping {
      private static final Map<String, KeyMapping> ALL = Maps.newHashMap();
--    private static final Map<InputConstants.Key, List<KeyMapping>> MAP = Maps.newHashMap();
+-    private static final Map<InputConstants.Key, KeyMapping> MAP = Maps.newHashMap();
 +    private static final net.minecraftforge.client.settings.KeyMappingLookup MAP = new net.minecraftforge.client.settings.KeyMappingLookup();
-     private final String name;
-     private final InputConstants.Key defaultKey;
-     private final KeyMapping.Category category;
-@@ -39,7 +_,7 @@
+     private static final Set<String> CATEGORIES = Sets.newHashSet();
+     public static final String CATEGORY_MOVEMENT = "key.categories.movement";
+     public static final String CATEGORY_MISC = "key.categories.misc";
+@@ -43,14 +_,14 @@
+     private int clickCount;
+ 
+     public static void click(InputConstants.Key p_90836_) {
+-        KeyMapping keymapping = MAP.get(p_90836_);
++        for (KeyMapping keymapping : MAP.getAll(p_90836_))
+         if (keymapping != null) {
+             keymapping.clickCount++;
+         }
      }
  
-     private static void forAllKeyMappings(InputConstants.Key p_424096_, Consumer<KeyMapping> p_427756_) {
--        List<KeyMapping> list = MAP.get(p_424096_);
-+        List<KeyMapping> list = MAP.getAll(p_424096_);
-         if (list != null && !list.isEmpty()) {
-             for (KeyMapping keymapping : list) {
-                 p_427756_.accept(keymapping);
-@@ -106,7 +_,7 @@
+     public static void set(InputConstants.Key p_90838_, boolean p_90839_) {
+-        KeyMapping keymapping = MAP.get(p_90838_);
++        for (KeyMapping keymapping : MAP.getAll(p_90838_))
+         if (keymapping != null) {
+             keymapping.setDown(p_90839_);
+         }
+@@ -101,7 +_,7 @@
      }
  
      public boolean isDown() {
@@ -29,27 +37,26 @@
 +        return this.isDown && isConflictContextAndModifierActive();
      }
  
-     public KeyMapping.Category getCategory() {
-@@ -149,8 +_,17 @@
-                 ? I18n.get(this.name).compareTo(I18n.get(p_90841_.name))
-                 : Integer.compare(this.order, p_90841_.order);
-         } else {
--            return Integer.compare(KeyMapping.Category.SORT_ORDER.indexOf(this.category), KeyMapping.Category.SORT_ORDER.indexOf(p_90841_.category));
-+            return compareSort(this.category, p_90841_.category);
-         }
+     public String getCategory() {
+@@ -137,7 +_,16 @@
+     public int compareTo(KeyMapping p_90841_) {
+         return this.category.equals(p_90841_.category)
+             ? I18n.get(this.name).compareTo(I18n.get(p_90841_.name))
+-            : CATEGORY_SORT_ORDER.get(this.category).compareTo(CATEGORY_SORT_ORDER.get(p_90841_.category));
++            : compareSort(this.category, p_90841_.category);
 +    }
 +
-+    private static int compareSort(Category c1, Category c2) {
-+        int o1 = KeyMapping.Category.SORT_ORDER.indexOf(c1);
-+        int o2 = KeyMapping.Category.SORT_ORDER.indexOf(c2);
-+        if (o1 == -1 && o2 != -1) return 1;
-+        if (o1 != -1 && o2 == -1) return -1;
-+        if (o1 == -1 && o2 == -1) return I18n.get(c1.id().toLanguageKey("key.category")).compareTo(I18n.get(c1.id().toLanguageKey("key.category")));
-+        return  o1 - o2;
++    private static int compareSort(String c1, String c2) {
++        Integer o1 = CATEGORY_SORT_ORDER.get(c1);
++        Integer o2 = CATEGORY_SORT_ORDER.get(c2);
++        if (o1 == null && o2 != null) return 1;
++        if (o1 != null && o2 == null) return -1;
++        if (o1 == null && o2 == null) return I18n.get(c1).compareTo(I18n.get(c2));
++        return  o1.compareTo(o2);
      }
  
      public static Supplier<Component> createNameSupplier(String p_90843_) {
-@@ -159,6 +_,20 @@
+@@ -146,6 +_,20 @@
      }
  
      public boolean same(KeyMapping p_90851_) {
@@ -70,7 +77,7 @@
          return this.key.equals(p_90851_.key);
      }
  
-@@ -177,11 +_,13 @@
+@@ -164,11 +_,13 @@
      }
  
      public Component getTranslatedKeyMessage() {
@@ -85,15 +92,9 @@
      }
  
      public String saveString() {
-@@ -193,11 +_,94 @@
-     }
- 
-     private void registerMapping(InputConstants.Key p_423386_) {
--        MAP.computeIfAbsent(p_423386_, p_420623_ -> new ArrayList<>()).add(this);
-+        MAP.put(p_423386_, this);
-     }
- 
-     public static @Nullable KeyMapping get(String p_378660_) {
+@@ -182,5 +_,88 @@
+     @Nullable
+     public static KeyMapping get(String p_378660_) {
          return ALL.get(p_378660_);
 +    }
 +
@@ -104,28 +105,28 @@
 +    /**
 +     * Convenience constructor for creating KeyBindings with keyConflictContext set.
 +     */
-+    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, final InputConstants.Type inputType, final int keyCode, Category category, int order) {
-+        this(description, keyConflictContext, inputType.getOrCreate(keyCode), category, order);
++    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, final InputConstants.Type inputType, final int keyCode, String category) {
++        this(description, keyConflictContext, inputType.getOrCreate(keyCode), category);
 +    }
 +
 +    /**
 +     * Convenience constructor for creating KeyBindings with keyConflictContext set.
 +     */
-+    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, InputConstants.Key keyCode, Category category, int order) {
-+        this(description, keyConflictContext, net.minecraftforge.client.settings.KeyModifier.NONE, keyCode, category, order);
++    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, InputConstants.Key keyCode, String category) {
++        this(description, keyConflictContext, net.minecraftforge.client.settings.KeyModifier.NONE, keyCode, category);
 +    }
 +
 +    /**
 +     * Convenience constructor for creating KeyBindings with keyConflictContext and keyModifier set.
 +     */
-+    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, net.minecraftforge.client.settings.KeyModifier keyModifier, final InputConstants.Type inputType, final int keyCode, Category category, int order) {
-+        this(description, keyConflictContext, keyModifier, inputType.getOrCreate(keyCode), category, order);
++    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, net.minecraftforge.client.settings.KeyModifier keyModifier, final InputConstants.Type inputType, final int keyCode, String category) {
++        this(description, keyConflictContext, keyModifier, inputType.getOrCreate(keyCode), category);
 +    }
 +
 +    /**
 +     * Convenience constructor for creating KeyBindings with keyConflictContext and keyModifier set.
 +     */
-+    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, net.minecraftforge.client.settings.KeyModifier keyModifier, InputConstants.Key keyCode, Category category, int order) {
++    public KeyMapping(String description, net.minecraftforge.client.settings.IKeyConflictContext keyConflictContext, net.minecraftforge.client.settings.KeyModifier keyModifier, InputConstants.Key keyCode, String category) {
 +       this.name = description;
 +       this.key = keyCode;
 +       this.defaultKey = keyCode;
@@ -133,11 +134,11 @@
 +       this.keyConflictContext = keyConflictContext;
 +       this.keyModifier = keyModifier;
 +       this.keyModifierDefault = keyModifier;
-+       this.order = order;
 +       if (this.keyModifier.matches(keyCode))
 +          this.keyModifier = net.minecraftforge.client.settings.KeyModifier.NONE;
 +       ALL.put(description, this);
 +       MAP.put(keyCode, this);
++       CATEGORIES.add(category);
 +    }
 +
 +    @Override
@@ -179,5 +180,4 @@
 +
 +        MAP.put(keyCode, this);
      }
- 
-     @OnlyIn(Dist.CLIENT)
+ }

patches/minecraft/net/minecraft/client/KeyboardHandler.java.patch

@@ -1,37 +1,39 @@
 --- a/net/minecraft/client/KeyboardHandler.java
 +++ b/net/minecraft/client/KeyboardHandler.java
-@@ -497,7 +_,7 @@
+@@ -431,12 +_,12 @@
              if (screen != null) {
                  try {
-                     if (p_90895_ != 1 && p_90895_ != 2) {
--                        if (p_90895_ == 0 && screen.keyReleased(p_423534_)) {
-+                        if (p_90895_ == 0 && net.minecraftforge.client.ForgeHooksClient.onScreenKeyReleased(screen, p_423534_)) {
-                             if (options.keyDebugModifier.matches(p_423534_)) {
-                                 this.usedDebugKeyAsModifier = false;
-                             }
-@@ -506,7 +_,7 @@
+                     if (p_90897_ != 1 && p_90897_ != 2) {
+-                        if (p_90897_ == 0 && screen.keyReleased(p_90895_, p_90896_, p_90898_)) {
++                        if (p_90897_ == 0 && net.minecraftforge.client.ForgeHooksClient.onScreenKeyReleased(screen, p_90895_, p_90896_, p_90898_)) {
+                             return;
                          }
                      } else {
                          screen.afterKeyboardAction();
--                        if (screen.keyPressed(p_423534_)) {
-+                        if (net.minecraftforge.client.ForgeHooksClient.onScreenKeyPressed(screen, p_423534_)) {
-                             if (this.minecraft.screen == null) {
-                                 InputConstants.Key inputconstants$key = InputConstants.getKey(p_423534_);
-                                 KeyMapping.set(inputconstants$key, false);
-@@ -582,6 +_,7 @@
+-                        if (screen.keyPressed(p_90895_, p_90896_, p_90898_)) {
++                        if (net.minecraftforge.client.ForgeHooksClient.onScreenKeyPressed(screen, p_90895_, p_90896_, p_90898_)) {
+                             return;
+                         }
+                     }
+@@ -495,6 +_,7 @@
                      }
                  }
              }
-+            net.minecraftforge.client.ForgeHooksClient.onKeyInput(p_423534_, p_90895_);
++            net.minecraftforge.client.ForgeHooksClient.onKeyInput(p_90895_, p_90896_, p_90897_, p_90898_);
          }
      }
  
-@@ -590,7 +_,7 @@
-             Screen screen = this.minecraft.screen;
+@@ -504,10 +_,10 @@
              if (screen != null && this.minecraft.getOverlay() == null) {
                  try {
--                    screen.charTyped(p_427531_);
-+                    net.minecraftforge.client.ForgeHooksClient.onScreenCharTyped(screen, p_427531_);
+                     if (Character.isBmpCodePoint(p_90891_)) {
+-                        screen.charTyped((char)p_90891_, p_90892_);
++                        net.minecraftforge.client.ForgeHooksClient.onScreenCharTyped(screen, (char)p_90891_, p_90892_);
+                     } else if (Character.isValidCodePoint(p_90891_)) {
+-                        screen.charTyped(Character.highSurrogate(p_90891_), p_90892_);
+-                        screen.charTyped(Character.lowSurrogate(p_90891_), p_90892_);
++                        net.minecraftforge.client.ForgeHooksClient.onScreenCharTyped(screen, Character.highSurrogate(p_90891_), p_90892_);
++                        net.minecraftforge.client.ForgeHooksClient.onScreenCharTyped(screen, Character.lowSurrogate(p_90891_), p_90892_);
+                     }
                  } catch (Throwable throwable) {
                      CrashReport crashreport = CrashReport.forThrowable(throwable, "charTyped event handler");
-                     screen.fillCrashDetails(crashreport);

patches/minecraft/net/minecraft/client/Minecraft.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/client/Minecraft.java
 +++ b/net/minecraft/client/Minecraft.java
-@@ -265,7 +_,7 @@
+@@ -248,7 +_,7 @@
  import org.slf4j.Logger;
  
  @OnlyIn(Dist.CLIENT)
@@ -8,8 +8,8 @@
 +public class Minecraft extends ReentrantBlockableEventLoop<Runnable> implements WindowEventHandler, net.minecraftforge.client.extensions.IForgeMinecraft {
      static Minecraft instance;
      private static final Logger LOGGER = LogUtils.getLogger();
-     private static final int MAX_TICKS_PER_UPDATE = 10;
-@@ -431,7 +_,6 @@
+     public static final boolean ON_OSX = Util.getPlatform() == Util.OS.OSX;
+@@ -426,7 +_,6 @@
              }
          }, Util.nonCriticalIoPool());
          LOGGER.info("Setting user: {}", this.user.getName());
@@ -17,19 +17,19 @@
          this.demo = p_91084_.game.demo;
          this.allowsMultiplayer = !p_91084_.game.disableMultiplayer;
          this.allowsChat = !p_91084_.game.disableChat;
-@@ -483,10 +_,9 @@
+@@ -478,10 +_,9 @@
              LOGGER.error("Couldn't set icon", (Throwable)ioexception);
          }
  
 +        // FORGE: Move mouse and keyboard handler setup further below
          this.mouseHandler = new MouseHandler(this);
--        this.mouseHandler.setup(this.window);
+-        this.mouseHandler.setup(this.window.getWindow());
          this.keyboardHandler = new KeyboardHandler(this);
--        this.keyboardHandler.setup(this.window);
+-        this.keyboardHandler.setup(this.window.getWindow());
          RenderSystem.initRenderer(
-             this.window.handle(),
+             this.window.getWindow(),
              this.options.glDebugVerbosity,
-@@ -498,6 +_,7 @@
+@@ -492,6 +_,7 @@
          LOGGER.info("Using optional rendering extensions: {}", String.join(", ", RenderSystem.getDevice().getEnabledExtensions()));
          this.mainRenderTarget = new MainTarget(this.window.getWidth(), this.window.getHeight());
          this.resourceManager = new ReloadableResourceManager(PackType.CLIENT_RESOURCES);
@@ -37,40 +37,40 @@
          this.resourcePackRepository.reload();
          this.options.loadSelectedResourcePacks(this.resourcePackRepository);
          this.languageManager = new LanguageManager(this.options.languageCode, p_340763_ -> {
-@@ -585,6 +_,7 @@
-         this.particleResources = new ParticleResources();
-         this.resourceManager.registerReloadListener(this.particleResources);
-         this.particleEngine = new ParticleEngine(this.level, this.particleResources);
-+        net.minecraftforge.client.ForgeHooksClient.onRegisterParticleProviders(this.particleResources);
-         this.particleResources.onReload(this.particleEngine::clearParticles);
-         this.waypointStyles = new WaypointStyleManager();
-         this.resourceManager.registerReloadListener(this.waypointStyles);
-@@ -596,6 +_,9 @@
+@@ -570,6 +_,7 @@
+         this.blockEntityRenderDispatcher = new BlockEntityRenderDispatcher(this.font, this.modelManager.entityModels(), this.blockRenderer, this.itemModelResolver, this.itemRenderer, this.entityRenderDispatcher);
+         this.resourceManager.registerReloadListener(this.blockEntityRenderDispatcher);
+         this.particleEngine = new ParticleEngine(this.level, this.textureManager);
++        net.minecraftforge.client.ForgeHooksClient.onRegisterParticleProviders(this.particleEngine);
+         this.resourceManager.registerReloadListener(this.particleEngine);
+         this.paintingTextures = new PaintingTextureManager(this.textureManager);
+         this.resourceManager.registerReloadListener(this.paintingTextures);
+@@ -585,6 +_,9 @@
          this.resourceManager.registerReloadListener(this.gpuWarnlistManager);
          this.resourceManager.registerReloadListener(this.regionalCompliancies);
          this.gui = new Gui(this);
 +        // FORGE: Moved keyboard and mouse handler setup below ingame gui creation to prevent NPEs in them.
-+        this.mouseHandler.setup(this.window);
-+        this.keyboardHandler.setup(this.window);
++        this.mouseHandler.setup(this.window.getWindow());
++        this.keyboardHandler.setup(this.window.getWindow());
+         this.debugRenderer = new DebugRenderer(this);
          RealmsClient realmsclient = RealmsClient.getOrCreate(this);
          this.realmsDataFetcher = new RealmsDataFetcher(realmsclient);
-         RenderSystem.setErrorCallback(this::onFullscreenError);
-@@ -628,6 +_,7 @@
+@@ -618,6 +_,7 @@
              }
          }
  
 +        net.minecraftforge.client.ForgeHooksClient.initClientHooks(this, this.resourceManager);
          this.window.updateVsync(this.options.enableVsync().get());
          this.window.updateRawMouseInput(this.options.rawMouseInput().get());
-         this.window.setAllowCursorChanges(this.options.allowCursorChanges().get());
-@@ -651,16 +_,17 @@
+         this.window.setDefaultErrorCallback();
+@@ -639,16 +_,17 @@
          GameLoadTimesEvent.INSTANCE.beginStep(TelemetryProperty.LOAD_TIME_LOADING_OVERLAY_MS);
          Minecraft.GameLoadCookie minecraft$gameloadcookie = new Minecraft.GameLoadCookie(realmsclient, p_91084_.quickPlay);
          this.setOverlay(
 -            new LoadingOverlay(
--                this, reloadinstance, p_447796_ -> Util.ifElse(p_447796_, p_296162_ -> this.rollbackResourcePacks(p_296162_, minecraft$gameloadcookie), () -> {
+-                this, reloadinstance, p_296164_ -> Util.ifElse(p_296164_, p_296162_ -> this.rollbackResourcePacks(p_296162_, minecraft$gameloadcookie), () -> {
 +            net.minecraftforge.fml.loading.ImmediateWindowHandler.<LoadingOverlay>loadingOverlay(
-+                () -> this, () -> reloadinstance, p_296164_ -> Util.ifElse(p_296164_, p_447796_ -> this.rollbackResourcePacks(p_447796_, minecraft$gameloadcookie), () -> {
++                () -> this, () -> reloadinstance, p_296164_ -> Util.ifElse(p_296164_, p_296162_ -> this.rollbackResourcePacks(p_296162_, minecraft$gameloadcookie), () -> {
                      if (SharedConstants.IS_RUNNING_IN_IDE) {
                          this.selfTest();
                      }
@@ -82,9 +82,9 @@
 -            )
 +            ).get()
          );
-         this.quickPlayLog = QuickPlayLog.of(p_91084_.quickPlay.logPath());
+         this.quickPlayLog = QuickPlayLog.of(p_91084_.quickPlay.path());
          this.framerateLimitTracker = new FramerateLimitTracker(this.options, this);
-@@ -779,6 +_,7 @@
+@@ -746,6 +_,7 @@
          StringBuilder stringbuilder = new StringBuilder("Minecraft");
          if (checkModStatus().shouldReportAsModified()) {
              stringbuilder.append("*");
@@ -92,25 +92,25 @@
          }
  
          stringbuilder.append(" ");
-@@ -802,6 +_,8 @@
+@@ -769,6 +_,8 @@
      }
  
      private UserApiService createUserApiService(YggdrasilAuthenticationService p_193586_, GameConfig p_193587_) {
 +        if ("0".equals(p_193587_.user.user.getAccessToken())) // Forge: We use "0" in dev. Short circuit to stop exception spam.
 +            return UserApiService.OFFLINE;
-         return p_193587_.game.offlineDeveloperMode ? UserApiService.OFFLINE : p_193586_.createUserApiService(p_193587_.user.user.getAccessToken());
+         return p_193587_.user.user.getType() != User.Type.MSA
+             ? UserApiService.OFFLINE
+             : p_193586_.createUserApiService(p_193587_.user.user.getAccessToken());
+@@ -779,7 +_,7 @@
      }
  
-@@ -814,7 +_,7 @@
-     }
- 
-     private void rollbackResourcePacks(Throwable p_91240_, Minecraft.@Nullable GameLoadCookie p_299515_) {
+     private void rollbackResourcePacks(Throwable p_91240_, @Nullable Minecraft.GameLoadCookie p_299515_) {
 -        if (this.resourcePackRepository.getSelectedIds().size() > 1) {
 +        if (this.resourcePackRepository.getSelectedPacks().stream().anyMatch(e -> !e.isRequired())) { //Forge: This caused infinite loop if any resource packs are forced. Such as mod resources. So check if we can disable any.
              this.clearResourcePacksOnError(p_91240_, null, p_299515_);
          } else {
              Util.throwAsRuntime(p_91240_);
-@@ -1100,12 +_,6 @@
+@@ -1065,12 +_,6 @@
              LOGGER.error("setScreen called from non-game thread");
          }
  
@@ -120,55 +120,57 @@
 -            this.setLastInputType(InputType.NONE);
 -        }
 -
-         if (p_91153_ == null) {
-             if (this.clientLevelTeardownInProgress) {
-                 throw new IllegalStateException("Trying to return to in-game GUI during disconnection");
-@@ -1124,6 +_,23 @@
+         if (p_91153_ == null && this.clientLevelTeardownInProgress) {
+             throw new IllegalStateException("Trying to return to in-game GUI during disconnection");
+         } else {
+@@ -1084,6 +_,23 @@
+                 }
              }
-         }
  
-+        net.minecraftforge.client.ForgeHooksClient.clearGuiLayers(this);
-+        Screen old = this.screen;
-+        if (p_91153_ != null) {
-+           var event = net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenOpening(old, p_91153_);
-+           if (event == null) return;
-+           p_91153_ = event;
-+        }
-+
-+        if (p_91153_ != old) {
-+            if (old != null) {
-+                net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenClose(old);
-+                old.removed();
-+            } else {
-+                this.setLastInputType(InputType.NONE);
++            net.minecraftforge.client.ForgeHooksClient.clearGuiLayers(this);
++            Screen old = this.screen;
++            if (p_91153_ != null) {
++               var event = net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenOpening(old, p_91153_);
++               if (event == null) return;
++               p_91153_ = event;
 +            }
-+        }
 +
-         this.screen = p_91153_;
-         if (this.screen != null) {
-             this.screen.added();
-@@ -1207,6 +_,7 @@
++            if (p_91153_ != old) {
++                if (old != null) {
++                    net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenClose(old);
++                    old.removed();
++                } else {
++                    this.setLastInputType(InputType.NONE);
++                }
++            }
++
+             this.screen = p_91153_;
+             if (this.screen != null) {
+                 this.screen.added();
+@@ -1168,6 +_,7 @@
+             FreeTypeUtil.destroy();
              Util.shutdownExecutors();
-             RenderSystem.getSamplerCache().close();
              RenderSystem.getDevice().close();
 +            net.minecraftforge.fml.config.ConfigTracker.INSTANCE.forceUnload();
          } catch (Throwable throwable) {
              LOGGER.error("Shutdown failure!", throwable);
              throw throwable;
-@@ -1289,7 +_,9 @@
-             RenderSystem.getDevice().createCommandEncoder().clearColorAndDepthTextures(rendertarget.getColorTexture(), 0, rendertarget.getDepthTexture(), 1.0);
-             profilerfiller.push("gameRenderer");
-             if (!this.noRender) {
-+                net.minecraftforge.client.event.ForgeEventFactoryClient.onRenderTickStart(this.deltaTracker);
-                 this.gameRenderer.render(this.deltaTracker, p_91384_);
-+                net.minecraftforge.client.event.ForgeEventFactoryClient.onRenderTickEnd(this.deltaTracker);
-             }
+@@ -1237,9 +_,11 @@
+         this.mouseHandler.handleAccumulatedMovement();
+         profilerfiller.pop();
+         if (!this.noRender) {
++            net.minecraftforge.client.event.ForgeEventFactoryClient.onRenderTickStart(this.deltaTracker);
+             profilerfiller.popPush("gameRenderer");
+             this.gameRenderer.render(this.deltaTracker, p_91384_);
+             profilerfiller.pop();
++            net.minecraftforge.client.event.ForgeEventFactoryClient.onRenderTickEnd(this.deltaTracker);
+         }
  
-             profilerfiller.popPush("blit");
-@@ -1401,10 +_,12 @@
+         profilerfiller.push("blit");
+@@ -1363,10 +_,12 @@
          this.window.setGuiScale(i);
          if (this.screen != null) {
-             this.screen.resize(this.window.getGuiScaledWidth(), this.window.getGuiScaledHeight());
+             this.screen.resize(this, this.window.getGuiScaledWidth(), this.window.getGuiScaledHeight());
 +            net.minecraftforge.client.ForgeHooksClient.resizeGuiLayers(this, this.window.getGuiScaledWidth(), this.window.getGuiScaledHeight());
          }
  
@@ -178,7 +180,7 @@
          this.gameRenderer.resize(this.window.getWidth(), this.window.getHeight());
          this.mouseHandler.setIgnoreFirstMove();
      }
-@@ -1542,6 +_,7 @@
+@@ -1504,6 +_,7 @@
      }
  
      public void stop() {
@@ -186,64 +188,63 @@
          this.running = false;
      }
  
-@@ -1571,10 +_,18 @@
-                 if (p_91387_ && this.hitResult != null && this.hitResult.getType() == HitResult.Type.BLOCK) {
-                     BlockHitResult blockhitresult = (BlockHitResult)this.hitResult;
-                     BlockPos blockpos = blockhitresult.getBlockPos();
--                    if (!this.level.getBlockState(blockpos).isAir()) {
-+                    if (!this.level.isEmptyBlock(blockpos)) {
-+                        var inputEvent = new net.minecraftforge.client.event.InputEvent.InteractionKeyMappingTriggered(0, this.options.keyAttack, InteractionHand.MAIN_HAND);
-+                        if (net.minecraftforge.client.event.InputEvent.InteractionKeyMappingTriggered.BUS.post(inputEvent)) {
-+                           if (inputEvent.shouldSwingHand()) {
-+                              this.level.addBreakingBlockEffect(blockpos, blockhitresult);
-+                              this.player.swing(InteractionHand.MAIN_HAND);
-+                           }
-+                           return;
-+                        }
-                         Direction direction = blockhitresult.getDirection();
--                        if (this.gameMode.continueDestroyBlock(blockpos, direction)) {
--                            this.level.addBreakingBlockEffect(blockpos, direction);
-+                        if (this.gameMode.continueDestroyBlock(blockpos, direction) && inputEvent.shouldSwingHand()) {
-+                            this.level.addBreakingBlockEffect(blockpos, blockhitresult);
-                             this.player.swing(InteractionHand.MAIN_HAND);
-                         }
-                     }
-@@ -1611,6 +_,8 @@
-                     this.player.swing(InteractionHand.MAIN_HAND);
-                     return true;
-                 } else {
-+                    var inputEvent = new net.minecraftforge.client.event.InputEvent.InteractionKeyMappingTriggered(0, this.options.keyAttack, InteractionHand.MAIN_HAND);
-+                    if (!net.minecraftforge.client.event.InputEvent.InteractionKeyMappingTriggered.BUS.post(inputEvent))
-                     switch (this.hitResult.getType()) {
-                         case ENTITY:
-                             AttackRange attackrange = itemstack.get(DataComponents.ATTACK_RANGE);
-@@ -1621,7 +_,7 @@
-                         case BLOCK:
-                             BlockHitResult blockhitresult = (BlockHitResult)this.hitResult;
-                             BlockPos blockpos = blockhitresult.getBlockPos();
--                            if (!this.level.getBlockState(blockpos).isAir()) {
-+                            if (!this.level.isEmptyBlock(blockpos)) {
-                                 this.gameMode.startDestroyBlock(blockpos, blockhitresult.getDirection());
-                                 if (this.level.getBlockState(blockpos).isAir()) {
-                                     flag = true;
-@@ -1634,9 +_,10 @@
-                             }
- 
-                             this.player.resetAttackStrengthTicker();
-+                            net.minecraftforge.event.ForgeEventFactory.onLeftClickEmpty(this.player);
-                     }
- 
--                    if (!this.player.isSpectator()) {
-+                    if (!this.player.isSpectator() && inputEvent.shouldSwingHand()) {
+@@ -1532,10 +_,18 @@
+             if (p_91387_ && this.hitResult != null && this.hitResult.getType() == HitResult.Type.BLOCK) {
+                 BlockHitResult blockhitresult = (BlockHitResult)this.hitResult;
+                 BlockPos blockpos = blockhitresult.getBlockPos();
+-                if (!this.level.getBlockState(blockpos).isAir()) {
++                if (!this.level.isEmptyBlock(blockpos)) {
++                    var inputEvent = net.minecraftforge.client.event.ForgeEventFactoryClient.onClickInput(0, this.options.keyAttack, InteractionHand.MAIN_HAND);
++                    if (inputEvent.isCanceled()) {
++                       if (inputEvent.shouldSwingHand()) {
++                          this.particleEngine.addBlockHitEffects(blockpos, blockhitresult);
++                          this.player.swing(InteractionHand.MAIN_HAND);
++                       }
++                       return;
++                    }
+                     Direction direction = blockhitresult.getDirection();
+-                    if (this.gameMode.continueDestroyBlock(blockpos, direction)) {
+-                        this.particleEngine.crack(blockpos, direction);
++                    if (this.gameMode.continueDestroyBlock(blockpos, direction) && inputEvent.shouldSwingHand()) {
++                        this.particleEngine.addBlockHitEffects(blockpos, blockhitresult);
                          this.player.swing(InteractionHand.MAIN_HAND);
                      }
+                 }
+@@ -1563,6 +_,8 @@
+                 return false;
+             } else {
+                 boolean flag = false;
++                var inputEvent = net.minecraftforge.client.event.ForgeEventFactoryClient.onClickInput(0, this.options.keyAttack, InteractionHand.MAIN_HAND);
++                if (!inputEvent.isCanceled())
+                 switch (this.hitResult.getType()) {
+                     case ENTITY:
+                         this.gameMode.attack(this.player, ((EntityHitResult)this.hitResult).getEntity());
+@@ -1570,7 +_,7 @@
+                     case BLOCK:
+                         BlockHitResult blockhitresult = (BlockHitResult)this.hitResult;
+                         BlockPos blockpos = blockhitresult.getBlockPos();
+-                        if (!this.level.getBlockState(blockpos).isAir()) {
++                        if (!this.level.isEmptyBlock(blockpos)) {
+                             this.gameMode.startDestroyBlock(blockpos, blockhitresult.getDirection());
+                             if (this.level.getBlockState(blockpos).isAir()) {
+                                 flag = true;
+@@ -1583,8 +_,10 @@
+                         }
  
-@@ -1655,6 +_,12 @@
+                         this.player.resetAttackStrengthTicker();
++                        net.minecraftforge.event.ForgeEventFactory.onLeftClickEmpty(this.player);
+                 }
+ 
++                if (inputEvent.shouldSwingHand())
+                 this.player.swing(InteractionHand.MAIN_HAND);
+                 return flag;
+             }
+@@ -1600,6 +_,12 @@
                  }
  
                  for (InteractionHand interactionhand : InteractionHand.values()) {
-+                    var inputEvent = new net.minecraftforge.client.event.InputEvent.InteractionKeyMappingTriggered(1, this.options.keyUse, interactionhand);
-+                    if (net.minecraftforge.client.event.InputEvent.InteractionKeyMappingTriggered.BUS.post(inputEvent)) {
++                    var inputEvent = net.minecraftforge.client.event.ForgeEventFactoryClient.onClickInput(1, this.options.keyUse, interactionhand);
++                    if (inputEvent.isCanceled()) {
 +                       if (inputEvent.shouldSwingHand()) this.player.swing(interactionhand);
 +                       return;
 +                    }
@@ -251,16 +252,16 @@
                      ItemStack itemstack = this.player.getItemInHand(interactionhand);
                      if (!itemstack.isItemEnabled(this.level.enabledFeatures())) {
                          return;
-@@ -1676,7 +_,7 @@
+@@ -1620,7 +_,7 @@
+                                 }
+ 
+                                 if (interactionresult instanceof InteractionResult.Success interactionresult$success2) {
+-                                    if (interactionresult$success2.swingSource() == InteractionResult.SwingSource.CLIENT) {
++                                    if (interactionresult$success2.swingSource() == InteractionResult.SwingSource.CLIENT && inputEvent.shouldSwingHand()) {
+                                         this.player.swing(interactionhand);
                                      }
  
-                                     if (interactionresult instanceof InteractionResult.Success interactionresult$success2) {
--                                        if (interactionresult$success2.swingSource() == InteractionResult.SwingSource.CLIENT) {
-+                                        if (interactionresult$success2.swingSource() == InteractionResult.SwingSource.CLIENT && inputEvent.shouldSwingHand()) {
-                                             this.player.swing(interactionhand);
-                                         }
- 
-@@ -1689,7 +_,7 @@
+@@ -1632,7 +_,7 @@
                                  int i = itemstack.getCount();
                                  InteractionResult interactionresult1 = this.gameMode.useItemOn(this.player, interactionhand, blockhitresult);
                                  if (interactionresult1 instanceof InteractionResult.Success interactionresult$success) {
@@ -269,7 +270,7 @@
                                          this.player.swing(interactionhand);
                                          if (!itemstack.isEmpty() && (itemstack.getCount() != i || this.player.hasInfiniteMaterials())) {
                                              this.gameRenderer.itemInHandRenderer.itemUsed(interactionhand);
-@@ -1705,6 +_,9 @@
+@@ -1648,6 +_,9 @@
                          }
                      }
  
@@ -279,7 +280,7 @@
                      if (!itemstack.isEmpty()
                          && this.gameMode.useItem(this.player, interactionhand) instanceof InteractionResult.Success interactionresult$success1) {
                          if (interactionresult$success1.swingSource() == InteractionResult.SwingSource.CLIENT) {
-@@ -1734,6 +_,8 @@
+@@ -1677,6 +_,8 @@
          }
  
          ProfilerFiller profilerfiller = Profiler.get();
@@ -288,7 +289,7 @@
          profilerfiller.push("gui");
          this.chatListener.tick();
          this.gui.tick(this.pause);
-@@ -1815,6 +_,7 @@
+@@ -1766,6 +_,7 @@
  
                  this.tutorial.tick();
  
@@ -296,7 +297,7 @@
                  try {
                      this.level.tick(() -> true);
                  } catch (Throwable throwable1) {
-@@ -1828,6 +_,7 @@
+@@ -1779,6 +_,7 @@
  
                      throw new ReportedException(crashreport1);
                  }
@@ -304,7 +305,7 @@
              }
  
              profilerfiller.popPush("animateTick");
-@@ -1852,6 +_,7 @@
+@@ -1803,6 +_,7 @@
          profilerfiller.popPush("keyboard");
          this.keyboardHandler.tick();
          profilerfiller.pop();
@@ -312,15 +313,15 @@
      }
  
      private boolean isLevelRunningNormally() {
-@@ -2070,6 +_,7 @@
+@@ -2003,6 +_,7 @@
      }
  
-     public void setLevel(ClientLevel p_91157_) {
+     public void setLevel(ClientLevel p_91157_, ReceivingLevelScreen.Reason p_335893_) {
 +        if (this.level != null) net.minecraftforge.event.ForgeEventFactory.onLevelUnload(this.level);
+         this.updateScreenAndTick(new ReceivingLevelScreen(() -> false, p_335893_));
          this.level = p_91157_;
          this.updateLevelInEngines(p_91157_);
-     }
-@@ -2131,6 +_,7 @@
+@@ -2040,6 +_,7 @@
          IntegratedServer integratedserver = this.singleplayerServer;
          this.singleplayerServer = null;
          this.gameRenderer.resetData();
@@ -328,27 +329,27 @@
          this.gameMode = null;
          this.narrator.clear();
          this.clientLevelTeardownInProgress = true;
-@@ -2138,6 +_,7 @@
+@@ -2047,6 +_,7 @@
          try {
+             this.updateScreenAndTick(p_335030_);
              if (this.level != null) {
-                 this.gui.onDisconnected();
 +                net.minecraftforge.event.ForgeEventFactory.onLevelUnload(this.level);
-             }
+                 if (integratedserver != null) {
+                     ProfilerFiller profilerfiller = Profiler.get();
+                     profilerfiller.push("waitForServer");
+@@ -2060,6 +_,7 @@
  
-             if (integratedserver != null) {
-@@ -2150,6 +_,7 @@
-                 }
- 
-                 profilerfiller.pop();
+                 this.gui.onDisconnected();
+                 this.isLocalServer = false;
 +                net.minecraftforge.client.ForgeHooksClient.handleClientLevelClosing(this.level);
              }
  
-             this.setScreenAndShow(p_457642_);
-@@ -2292,6 +_,7 @@
+             this.level = null;
+@@ -2207,6 +_,7 @@
  
      private void pickBlock() {
          if (this.hitResult != null && this.hitResult.getType() != HitResult.Type.MISS) {
-+            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onClickInputPickBlock(this.options.keyPickItem)) return;
-             boolean flag = this.hasControlDown();
++            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onClickInput(2, this.options.keyPickItem, InteractionHand.MAIN_HAND).isCanceled()) return;
+             boolean flag = Screen.hasControlDown();
              switch (this.hitResult) {
                  case BlockHitResult blockhitresult:

patches/minecraft/net/minecraft/client/MouseHandler.java.patch

@@ -1,40 +1,40 @@
 --- a/net/minecraft/client/MouseHandler.java
 +++ b/net/minecraft/client/MouseHandler.java
-@@ -87,6 +_,7 @@
-                 this.activeButton = null;
+@@ -90,6 +_,7 @@
+                 this.activeButton = -1;
              }
  
-+            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onMouseButtonPre(mousebuttoninfo, p_423948_)) return;
++            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onMouseButtonPre(p_91532_, p_91533_, p_91534_)) return;
              if (this.minecraft.getOverlay() == null) {
                  if (this.minecraft.screen == null) {
                      if (!this.mouseGrabbed && flag) {
-@@ -106,7 +_,7 @@
-                                 && i - this.lastClick.time() < 250L
-                                 && this.lastClick.screen() == screen
-                                 && this.lastClickButton == mousebuttonevent.button();
--                            if (screen.mouseClicked(mousebuttonevent, flag1)) {
-+                            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenMouseClicked(screen, d0, d1, mousebuttonevent, flag1)) {
-                                 this.lastClick = new MouseHandler.LastClick(i, screen);
-                                 this.lastClickButton = mousebuttoninfo.button();
+@@ -103,7 +_,7 @@
+                         screen.afterMouseAction();
+ 
+                         try {
+-                            if (screen.mouseClicked(d0, d1, i)) {
++                            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenMouseClicked(screen, d0, d1, i)) {
                                  return;
-@@ -121,7 +_,7 @@
+                             }
+                         } catch (Throwable throwable1) {
+@@ -116,7 +_,7 @@
                          }
                      } else {
                          try {
--                            if (screen.mouseReleased(mousebuttonevent)) {
-+                            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenMouseReleased(screen, d0, d1, mousebuttonevent)) {
+-                            if (screen.mouseReleased(d0, d1, i)) {
++                            if (net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenMouseReleased(screen, d0, d1, i)) {
                                  return;
                              }
                          } catch (Throwable throwable) {
-@@ -151,6 +_,7 @@
-                     KeyMapping.click(inputconstants$key);
+@@ -150,6 +_,7 @@
                  }
              }
-+            net.minecraftforge.client.event.ForgeEventFactoryClient.onMouseButtonPost(mousebuttoninfo, p_423948_);
          }
++        net.minecraftforge.client.event.ForgeEventFactoryClient.onMouseButtonPost(p_91532_, p_91533_, p_91534_);
      }
  
-@@ -207,7 +_,9 @@
+     public void fillMousePositionDetails(CrashReportCategory p_398230_, Window p_398216_) {
+@@ -189,7 +_,9 @@
                  if (this.minecraft.screen != null) {
                      double d3 = this.getScaledXPos(this.minecraft.getWindow());
                      double d4 = this.getScaledYPos(this.minecraft.getWindow());
@@ -45,7 +45,7 @@
                      this.minecraft.screen.afterMouseAction();
                  } else if (this.minecraft.player != null) {
                      Vector2i vector2i = this.scrollWheelHandler.onMouseScroll(d1, d2);
-@@ -216,6 +_,7 @@
+@@ -198,6 +_,7 @@
                      }
  
                      int i = vector2i.y == 0 ? -vector2i.x : vector2i.y;
@@ -53,16 +53,16 @@
                      if (this.minecraft.player.isSpectator()) {
                          if (this.minecraft.gui.getSpectatorGui().isMenuActive()) {
                              this.minecraft.gui.getSpectatorGui().onMouseScrolled(-i);
-@@ -324,7 +_,7 @@
+@@ -303,7 +_,7 @@
                      double d5 = getScaledYPos(window, this.accumulatedDY);
  
                      try {
--                        screen.mouseDragged(new MouseButtonEvent(d2, d3, this.activeButton), d4, d5);
-+                        net.minecraftforge.client.ForgeHooksClient.onScreenMouseDrag(screen, new MouseButtonEvent(d2, d3, this.activeButton), d4, d5);
+-                        screen.mouseDragged(d2, d3, this.activeButton, d4, d5);
++                        net.minecraftforge.client.ForgeHooksClient.onScreenMouseDrag(screen, d2, d3, this.activeButton, d4, d5);
                      } catch (Throwable throwable) {
                          CrashReport crashreport1 = CrashReport.forThrowable(throwable, "mouseDragged event handler");
                          screen.fillCrashDetails(crashreport1);
-@@ -411,6 +_,14 @@
+@@ -393,6 +_,14 @@
  
      public double ypos() {
          return this.ypos;

patches/minecraft/net/minecraft/client/Options.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/client/Options.java
 +++ b/net/minecraft/client/Options.java
-@@ -816,7 +_,8 @@
+@@ -668,7 +_,8 @@
          },
          new OptionInstance.LazyEnum<>(
              () -> Stream.concat(Stream.of(""), Minecraft.getInstance().getSoundManager().getAvailableSoundDevices().stream()).toList(),
@@ -10,15 +10,15 @@
                  ? Optional.empty()
                  : Optional.of(p_232011_),
              Codec.STRING
-@@ -848,6 +_,7 @@
-     );
+@@ -683,6 +_,7 @@
+     public boolean onboardAccessibility = true;
      public boolean syncWrites;
      public boolean startedCleanly = true;
 +    private final Map<String, String> unknownKeys = new java.util.HashMap<>();
  
-     private static void operateOnLevelRenderer(Consumer<LevelRenderer> p_457625_) {
-         LevelRenderer levelrenderer = Minecraft.getInstance().levelRenderer;
-@@ -1313,6 +_,7 @@
+     public OptionInstance<Boolean> darkMojangStudiosBackground() {
+         return this.darkMojangStudiosBackground;
+@@ -1050,6 +_,7 @@
      }
  
      public Options(Minecraft p_92138_, File p_92139_) {
@@ -26,10 +26,10 @@
          this.minecraft = p_92138_;
          this.optionsFile = new File(p_92139_, "options.txt");
          boolean flag = Runtime.getRuntime().maxMemory() >= 1000000000L;
-@@ -1463,15 +_,28 @@
+@@ -1181,15 +_,28 @@
+         this.onboardAccessibility = p_168428_.process("onboardAccessibility", this.onboardAccessibility);
+         p_168428_.process("menuBackgroundBlurriness", this.menuBackgroundBlurriness);
          this.startedCleanly = p_168428_.process("startedCleanly", this.startedCleanly);
-         p_168428_.process("musicToast", this.musicToast);
-         p_168428_.process("musicFrequency", this.musicFrequency);
 +        processOptionsKeysOnly(p_168428_);
 +        processOptionsEnd(p_168428_);
 +    }
@@ -56,7 +56,7 @@
          for (SoundSource soundsource : SoundSource.values()) {
              p_168428_.process("soundCategory_" + soundsource.getName(), this.soundSourceVolumes.get(soundsource));
          }
-@@ -1486,6 +_,10 @@
+@@ -1204,6 +_,10 @@
      }
  
      public void load() {
@@ -67,17 +67,17 @@
          try {
              if (!this.optionsFile.exists()) {
                  return;
-@@ -1505,7 +_,8 @@
+@@ -1228,7 +_,8 @@
+                 this.graphicsMode.set(isTrue(optional.get()) ? GraphicsStatus.FANCY : GraphicsStatus.FAST);
              }
  
-             final CompoundTag compoundtag1 = this.dataFix(compoundtag);
 -            this.processOptions(
 +            java.util.function.Consumer<FieldAccess> processor = limited ? this::processOptionsKeysOnly : this::processOptions;
 +            processor.accept(
                  new Options.FieldAccess() {
-                     private @Nullable String getValue(String p_394210_) {
-                         Tag tag = compoundtag1.get(p_394210_);
-@@ -1585,6 +_,17 @@
+                     @Nullable
+                     private String getValue(String p_394210_) {
+@@ -1310,6 +_,17 @@
              );
              compoundtag1.getString("fullscreenResolution").ifPresent(p_389133_ -> this.fullscreenVideoModeString = p_389133_);
              KeyMapping.resetMapping();
@@ -95,10 +95,10 @@
          } catch (Exception exception) {
              LOGGER.error("Failed to load options", (Throwable)exception);
          }
-@@ -1612,9 +_,11 @@
+@@ -1337,9 +_,11 @@
      public void save() {
          try (final PrintWriter printwriter = new PrintWriter(new OutputStreamWriter(new FileOutputStream(this.optionsFile), StandardCharsets.UTF_8))) {
-             printwriter.println("version:" + SharedConstants.getCurrentVersion().dataVersion().version());
+             printwriter.println("version:" + SharedConstants.getCurrentVersion().getDataVersion().getVersion());
 +            var seen = new java.util.HashSet<String>();
              this.processOptions(
                  new Options.FieldAccess() {
@@ -107,7 +107,7 @@
                          printwriter.print(p_168491_);
                          printwriter.print(':');
                      }
-@@ -1670,6 +_,12 @@
+@@ -1395,6 +_,12 @@
              if (s != null) {
                  printwriter.println("fullscreenResolution:" + s);
              }
@@ -120,7 +120,7 @@
          } catch (Exception exception) {
              LOGGER.error("Failed to save options", (Throwable)exception);
          }
-@@ -1707,6 +_,7 @@
+@@ -1433,6 +_,7 @@
      }
  
      public void broadcastOptions() {
@@ -128,7 +128,7 @@
          if (this.minecraft.player != null) {
              this.minecraft.player.connection.broadcastClientInformation(this.buildPlayerInformation());
          }
-@@ -1820,6 +_,23 @@
+@@ -1546,6 +_,23 @@
  
      public static Component genericValueLabel(Component p_231901_, int p_231902_) {
          return genericValueLabel(p_231901_, Component.literal(Integer.toString(p_231902_)));

patches/minecraft/net/minecraft/client/Screenshot.java.patch

@@ -4,8 +4,8 @@
                      file2 = new File(file1, p_92297_);
                  }
  
-+                var event = new net.minecraftforge.client.event.ScreenshotEvent(p_447863_, file2);
-+                if (net.minecraftforge.client.event.ScreenshotEvent.BUS.post(event)) {
++                var event = net.minecraftforge.client.event.ForgeEventFactoryClient.onScreenshot(p_389141_, file2);
++                if (event.isCanceled()) {
 +                    p_92301_.accept(event.getCancelMessage());
 +                    return;
 +                }
@@ -15,12 +15,12 @@
                      .execute(
                          () -> {
 @@ -50,10 +_,13 @@
-                                 NativeImage $$4x = p_447863_;
+                                 NativeImage $$4x = p_389141_;
  
                                  try {
--                                    p_447863_.writeToFile(file2);
+-                                    p_389141_.writeToFile(file2);
 -                                    Component component = Component.literal(file2.getName())
-+                                    p_447863_.writeToFile(target);
++                                    p_389141_.writeToFile(target);
 +                                    Component component = Component.literal(target.getName())
                                          .withStyle(ChatFormatting.UNDERLINE)
                                          .withStyle(p_389149_ -> p_389149_.withClickEvent(new ClickEvent.OpenFile(file2.getAbsoluteFile())));
@@ -29,4 +29,4 @@
 +                                    else
                                      p_92301_.accept(Component.translatable("screenshot.success", component));
                                  } catch (Throwable throwable1) {
-                                     if (p_447863_ != null) {
+                                     if (p_389141_ != null) {

patches/minecraft/net/minecraft/client/ToggleKeyMapping.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/client/ToggleKeyMapping.java
 +++ b/net/minecraft/client/ToggleKeyMapping.java
-@@ -31,7 +_,7 @@
+@@ -17,7 +_,7 @@
      @Override
      public void setDown(boolean p_92534_) {
          if (this.needsToggle.getAsBoolean()) {
@@ -9,7 +9,7 @@
                  super.setDown(!this.isDown());
              }
          } else {
-@@ -56,5 +_,9 @@
+@@ -27,5 +_,9 @@
  
      protected void reset() {
          super.setDown(false);

patches/minecraft/net/minecraft/client/data/models/ItemModelGenerators.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/client/data/models/ItemModelGenerators.java
 +++ b/net/minecraft/client/data/models/ItemModelGenerators.java
-@@ -912,6 +_,9 @@
+@@ -852,6 +_,9 @@
          this.declareCustomModelItem(Items.COD);
          this.declareCustomModelItem(Items.FEATHER);
          this.declareCustomModelItem(Items.LEAD);

patches/minecraft/net/minecraft/client/data/models/ModelProvider.java.patch

@@ -21,11 +21,11 @@
      }
  
 +    protected Stream<Block> getKnownBlocks() {
-+         return BuiltInRegistries.BLOCK.stream().filter(block -> "minecraft".equals(block.builtInRegistryHolder().key().identifier().getNamespace()));
++         return BuiltInRegistries.BLOCK.stream().filter(block -> "minecraft".equals(block.builtInRegistryHolder().key().location().getNamespace()));
 +    }
 +
 +    protected Stream<Item> getKnownItems() {
-+        return BuiltInRegistries.ITEM.stream().filter(item -> "minecraft".equals(item.builtInRegistryHolder().key().identifier().getNamespace()));
++        return BuiltInRegistries.ITEM.stream().filter(item -> "minecraft".equals(item.builtInRegistryHolder().key().location().getNamespace()));
 +    }
 +
 +    protected BlockModelGenerators getBlockModelGenerators(BlockStateGeneratorCollector blocks, ItemInfoCollector items, SimpleModelCollector models) {
@@ -46,7 +46,7 @@
 +        private final Supplier<Stream<Block>> known;
 +
 +        public BlockStateGeneratorCollector() {
-+            this(() -> BuiltInRegistries.BLOCK.stream().filter(block -> "minecraft".equals(block.builtInRegistryHolder().key().identifier().getNamespace())));
++            this(() -> BuiltInRegistries.BLOCK.stream().filter(block -> "minecraft".equals(block.builtInRegistryHolder().key().location().getNamespace())));
 +        }
 +
 +        public BlockStateGeneratorCollector(Supplier<Stream<Block>> known) {
@@ -61,8 +61,8 @@
          public void validate() {
 -            Stream<Holder.Reference<Block>> stream = BuiltInRegistries.BLOCK.listElements().filter(p_376480_ -> true);
 +            Stream<Holder.Reference<Block>> stream = known.get().map(Block::builtInRegistryHolder);
-             List<Identifier> list = stream.filter(p_378423_ -> !this.generators.containsKey(p_378423_.value()))
-                 .map(p_447940_ -> p_447940_.key().identifier())
+             List<ResourceLocation> list = stream.filter(p_378423_ -> !this.generators.containsKey(p_378423_.value()))
+                 .map(p_378200_ -> p_378200_.key().location())
                  .toList();
 @@ -97,6 +_,15 @@
      public static class ItemInfoCollector implements ItemModelOutput {
@@ -71,7 +71,7 @@
 +        private final Supplier<Stream<Item>> known;
 +
 +        public ItemInfoCollector() {
-+            this(() -> BuiltInRegistries.ITEM.stream().filter(item -> "minecraft".equals(item.builtInRegistryHolder().key().identifier().getNamespace())));
++            this(() -> BuiltInRegistries.ITEM.stream().filter(item -> "minecraft".equals(item.builtInRegistryHolder().key().location().getNamespace())));
 +        }
 +
 +        public ItemInfoCollector(Supplier<Stream<Item>> known) {
@@ -79,16 +79,16 @@
 +        }
  
          @Override
-         public void accept(Item p_376450_, ItemModel.Unbaked p_378513_, ClientItem.Properties p_455809_) {
+         public void accept(Item p_376450_, ItemModel.Unbaked p_378513_) {
 @@ -115,7 +_,7 @@
              this.copies.put(p_376965_, p_377438_);
          }
  
 -        public void finalizeAndValidate() {
 +        public void generateDefaultBlockModels() {
-             BuiltInRegistries.ITEM.forEach(p_447944_ -> {
-                 if (!this.copies.containsKey(p_447944_)) {
-                     if (p_447944_ instanceof BlockItem blockitem && !this.itemInfos.containsKey(blockitem)) {
+             BuiltInRegistries.ITEM.forEach(p_378629_ -> {
+                 if (!this.copies.containsKey(p_378629_)) {
+                     if (p_378629_ instanceof BlockItem blockitem && !this.itemInfos.containsKey(blockitem)) {
 @@ -124,6 +_,8 @@
                      }
                  }
@@ -102,10 +102,10 @@
                      this.register(p_376289_, clientitem);
                  }
              });
--            List<Identifier> list = BuiltInRegistries.ITEM
+-            List<ResourceLocation> list = BuiltInRegistries.ITEM
 -                .listElements()
-+            List<Identifier> list = known.get()
++            List<ResourceLocation> list = known.get()
 +                .map(item -> item.builtInRegistryHolder())
                  .filter(p_377225_ -> !this.itemInfos.containsKey(p_377225_.value()))
-                 .map(p_447943_ -> p_447943_.key().identifier())
+                 .map(p_378591_ -> p_378591_.key().location())
                  .toList();