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 
final class org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction<T, V> implements org.eclipse.collections.api.block.function.Function<T, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  private final V value;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: TV;

  private void <init>();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction this
        start local 1 // java.lang.Object value
         0: .line 103
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 105
            aload 0 /* this */
            aload 1 /* value */
            putfield org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction.value:Ljava/lang/Object;
         2: .line 106
            return
        end local 1 // java.lang.Object value
        end local 0 // org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lorg/eclipse/collections/impl/block/factory/Functions$FixedValueFunction<TT;TV;>;
            0    3     1  value  TV;
    Signature: (TV;)V
    MethodParameters:
       Name  Flags
      value  

  public V valueOf();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction this
        start local 1 // java.lang.Object object
         0: .line 111
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction.value:Ljava/lang/Object;
            areturn
        end local 1 // java.lang.Object object
        end local 0 // org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lorg/eclipse/collections/impl/block/factory/Functions$FixedValueFunction<TT;TV;>;
            0    1     1  object  TT;
    Signature: (TT;)TV;
    MethodParameters:
        Name  Flags
      object  
}
Signature: <T:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;Lorg/eclipse/collections/api/block/function/Function<TT;TV;>;
SourceFile: "Functions.java"
NestHost: org.eclipse.collections.impl.block.factory.Functions
InnerClasses:
  private final FixedValueFunction = org.eclipse.collections.impl.block.factory.Functions$FixedValueFunction of org.eclipse.collections.impl.block.factory.Functions