Revert

java/net/minecraft/util/math/IntHashMap.java

@@ -1,7 +1,5 @@
 package net.minecraft.util.math;
 
-import java.util.Objects;
-
 public class IntHashMap<V> {
     private transient IntHashMap.Entry<V>[] slots = new IntHashMap.Entry[16];
     /**
@@ -44,7 +42,7 @@ public class IntHashMap<V> {
             }
         }
 
-        return null;
+        return (V) null;
     }
 
     /**
@@ -133,7 +131,7 @@ public class IntHashMap<V> {
      */
     public V removeObject(int p_76049_1_) {
         IntHashMap.Entry<V> entry = this.removeEntry(p_76049_1_);
-        return entry == null ? null : entry.valueEntry;
+        return (V) (entry == null ? null : entry.valueEntry);
     }
 
     final IntHashMap.Entry<V> removeEntry(int p_76036_1_) {
@@ -233,11 +231,13 @@ public class IntHashMap<V> {
                 Object object = Integer.valueOf(this.getHash());
                 Object object1 = Integer.valueOf(entry.getHash());
 
-                if (Objects.equals(object, object1)) {
+                if (object == object1 || object != null && object.equals(object1)) {
                     Object object2 = this.getValue();
                     Object object3 = entry.getValue();
 
-                    return Objects.equals(object2, object3);
+                    if (object2 == object3 || object2 != null && object2.equals(object3)) {
+                        return true;
+                    }
                 }
 
                 return false;
@@ -252,4 +252,4 @@ public class IntHashMap<V> {
             return this.getHash() + "=" + this.getValue();
         }
     }
-}
+}