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 final class org.eclipse.collections.impl.block.function.PassThruFunction0<T> implements org.eclipse.collections.api.block.function.Function0<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.function.PassThruFunction0
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  private final T result;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: TT;

  public void <init>();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.function.PassThruFunction0 this
        start local 1 // java.lang.Object newResult
         0: .line 24
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 26
            aload 0 /* this */
            aload 1 /* newResult */
            putfield org.eclipse.collections.impl.block.function.PassThruFunction0.result:Ljava/lang/Object;
         2: .line 27
            return
        end local 1 // java.lang.Object newResult
        end local 0 // org.eclipse.collections.impl.block.function.PassThruFunction0 this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lorg/eclipse/collections/impl/block/function/PassThruFunction0<TT;>;
            0    3     1  newResult  TT;
    Signature: (TT;)V
    MethodParameters:
           Name  Flags
      newResult  

  public T value();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.block.function.PassThruFunction0 this
         0: .line 32
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.function.PassThruFunction0.result:Ljava/lang/Object;
            areturn
        end local 0 // org.eclipse.collections.impl.block.function.PassThruFunction0 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/block/function/PassThruFunction0<TT;>;
    Signature: ()TT;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;Lorg/eclipse/collections/api/block/function/Function0<TT;>;
SourceFile: "PassThruFunction0.java"