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.Procedures2$ProcedureAdapter<T, P> implements org.eclipse.collections.api.block.procedure.Procedure2<T, P>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  private final org.eclipse.collections.api.block.procedure.Procedure<? super T> procedure;
    descriptor: Lorg/eclipse/collections/api/block/procedure/Procedure;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Lorg/eclipse/collections/api/block/procedure/Procedure<-TT;>;

  private void <init>(org.eclipse.collections.api.block.procedure.Procedure<? super T>);
    descriptor: (Lorg/eclipse/collections/api/block/procedure/Procedure;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter this
        start local 1 // org.eclipse.collections.api.block.procedure.Procedure procedure
         0: .line 138
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 140
            aload 0 /* this */
            aload 1 /* procedure */
            putfield org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter.procedure:Lorg/eclipse/collections/api/block/procedure/Procedure;
         2: .line 141
            return
        end local 1 // org.eclipse.collections.api.block.procedure.Procedure procedure
        end local 0 // org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lorg/eclipse/collections/impl/block/factory/Procedures2$ProcedureAdapter<TT;TP;>;
            0    3     1  procedure  Lorg/eclipse/collections/api/block/procedure/Procedure<-TT;>;
    Signature: (Lorg/eclipse/collections/api/block/procedure/Procedure<-TT;>;)V
    MethodParameters:
           Name  Flags
      procedure  

  public void value(T, );
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter this
        start local 1 // java.lang.Object each
        start local 2 // java.lang.Object parameter
         0: .line 146
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter.procedure:Lorg/eclipse/collections/api/block/procedure/Procedure;
            aload 1 /* each */
            invokeinterface org.eclipse.collections.api.block.procedure.Procedure.value:(Ljava/lang/Object;)V
         1: .line 147
            return
        end local 2 // java.lang.Object parameter
        end local 1 // java.lang.Object each
        end local 0 // org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0       this  Lorg/eclipse/collections/impl/block/factory/Procedures2$ProcedureAdapter<TT;TP;>;
            0    2     1       each  TT;
            0    2     2  parameter  TP;
    Signature: (TT;TP;)V
    MethodParameters:
           Name  Flags
      each       
      parameter  
}
Signature: <T:Ljava/lang/Object;P:Ljava/lang/Object;>Ljava/lang/Object;Lorg/eclipse/collections/api/block/procedure/Procedure2<TT;TP;>;
SourceFile: "Procedures2.java"
NestHost: org.eclipse.collections.impl.block.factory.Procedures2
InnerClasses:
  private final ProcedureAdapter = org.eclipse.collections.impl.block.factory.Procedures2$ProcedureAdapter of org.eclipse.collections.impl.block.factory.Procedures2