https://github.com/eclipse/eclipse-collections/eclipse-collections: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
public class org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry<K, V> implements java.util.Map$Entry<K, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry
  super_class: java.lang.Object
{
  protected final K key;
    descriptor: Ljava/lang/Object;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Signature: TK;

  protected V value;
    descriptor: Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Signature: TV;

  protected final java.lang.ref.WeakReference<org.eclipse.collections.impl.map.mutable.UnifiedMap<K, V>> holder;
    descriptor: Ljava/lang/ref/WeakReference;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Signature: Ljava/lang/ref/WeakReference<Lorg/eclipse/collections/impl/map/mutable/UnifiedMap<TK;TV;>;>;

  protected void <init>(K, V, java.lang.ref.WeakReference<org.eclipse.collections.impl.map.mutable.UnifiedMap<K, V>>);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/ref/WeakReference;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
        start local 1 // java.lang.Object key
        start local 2 // java.lang.Object value
        start local 3 // java.lang.ref.WeakReference holder
         0: .line 2931
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 2933
            aload 0 /* this */
            aload 1 /* key */
            putfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
         2: .line 2934
            aload 0 /* this */
            aload 2 /* value */
            putfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
         3: .line 2935
            aload 0 /* this */
            aload 3 /* holder */
            putfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.holder:Ljava/lang/ref/WeakReference;
         4: .line 2936
            return
        end local 3 // java.lang.ref.WeakReference holder
        end local 2 // java.lang.Object value
        end local 1 // java.lang.Object key
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0    this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;
            0    5     1     key  TK;
            0    5     2   value  TV;
            0    5     3  holder  Ljava/lang/ref/WeakReference<Lorg/eclipse/collections/impl/map/mutable/UnifiedMap<TK;TV;>;>;
    Signature: (TK;TV;Ljava/lang/ref/WeakReference<Lorg/eclipse/collections/impl/map/mutable/UnifiedMap<TK;TV;>;>;)V
    MethodParameters:
        Name  Flags
      key     
      value   
      holder  

  public K getKey();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
         0: .line 2941
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            areturn
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;
    Signature: ()TK;

  public V getValue();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
         0: .line 2947
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
            areturn
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;
    Signature: ()TV;

  public V setValue();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
        start local 1 // java.lang.Object value
         0: .line 2953
            aload 0 /* this */
            aload 1 /* value */
            putfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
         1: .line 2954
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.holder:Ljava/lang/ref/WeakReference;
            invokevirtual java.lang.ref.WeakReference.get:()Ljava/lang/Object;
            checkcast org.eclipse.collections.impl.map.mutable.UnifiedMap
            astore 2 /* map */
        start local 2 // org.eclipse.collections.impl.map.mutable.UnifiedMap map
         2: .line 2955
            aload 2 /* map */
            ifnull 4
            aload 2 /* map */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            invokevirtual org.eclipse.collections.impl.map.mutable.UnifiedMap.containsKey:(Ljava/lang/Object;)Z
            ifeq 4
         3: .line 2957
            aload 2 /* map */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            aload 1 /* value */
            invokevirtual org.eclipse.collections.impl.map.mutable.UnifiedMap.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
         4: .line 2959
      StackMap locals: org.eclipse.collections.impl.map.mutable.UnifiedMap
      StackMap stack:
            aconst_null
            areturn
        end local 2 // org.eclipse.collections.impl.map.mutable.UnifiedMap map
        end local 1 // java.lang.Object value
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    5     0   this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;
            0    5     1  value  TV;
            2    5     2    map  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap<TK;TV;>;
    Signature: (TV;)TV;
    MethodParameters:
       Name  Flags
      value  

  public boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=2
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
        start local 1 // java.lang.Object obj
         0: .line 2965
            aload 1 /* obj */
            instanceof java.util.Map$Entry
            ifeq 8
         1: .line 2967
            aload 1 /* obj */
            checkcast java.util.Map$Entry
            astore 2 /* other */
        start local 2 // java.util.Map$Entry other
         2: .line 2968
            aload 2 /* other */
            invokeinterface java.util.Map$Entry.getKey:()Ljava/lang/Object;
            astore 3 /* otherKey */
        start local 3 // java.lang.Object otherKey
         3: .line 2969
            aload 2 /* other */
            invokeinterface java.util.Map$Entry.getValue:()Ljava/lang/Object;
            astore 4 /* otherValue */
        start local 4 // java.lang.Object otherValue
         4: .line 2970
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            aload 3 /* otherKey */
            invokestatic org.eclipse.collections.impl.map.mutable.UnifiedMap.nullSafeEquals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         5: .line 2971
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
            aload 4 /* otherValue */
            invokestatic org.eclipse.collections.impl.map.mutable.UnifiedMap.nullSafeEquals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         6: .line 2970
            iconst_1
            ireturn
      StackMap locals: java.util.Map$Entry java.lang.Object java.lang.Object
      StackMap stack:
         7: iconst_0
            ireturn
        end local 4 // java.lang.Object otherValue
        end local 3 // java.lang.Object otherKey
        end local 2 // java.util.Map$Entry other
         8: .line 2973
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        end local 1 // java.lang.Object obj
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    9     0        this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;
            0    9     1         obj  Ljava/lang/Object;
            2    8     2       other  Ljava/util/Map$Entry<**>;
            3    8     3    otherKey  TK;
            4    8     4  otherValue  TV;
    MethodParameters:
      Name  Flags
      obj   

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
         0: .line 2979
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            ifnonnull 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            invokevirtual java.lang.Object.hashCode:()I
         2: .line 2980
      StackMap locals:
      StackMap stack: int
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
            ifnonnull 3
            iconst_0
            goto 4
      StackMap locals:
      StackMap stack: int
         3: aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
            invokevirtual java.lang.Object.hashCode:()I
         4: .line 2979
      StackMap locals: org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry
      StackMap stack: int int
            ixor
            ireturn
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
         0: .line 2986
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.key:Ljava/lang/Object;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc "="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry.value:Ljava/lang/Object;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/map/mutable/UnifiedMap$WeakBoundEntry<TK;TV;>;
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;Ljava/util/Map$Entry<TK;TV;>;
SourceFile: "UnifiedMap.java"
NestHost: org.eclipse.collections.impl.map.mutable.UnifiedMap
InnerClasses:
  public abstract Entry = java.util.Map$Entry of java.util.Map
  protected WeakBoundEntry = org.eclipse.collections.impl.map.mutable.UnifiedMap$WeakBoundEntry of org.eclipse.collections.impl.map.mutable.UnifiedMap