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.lazy.primitive.TapDoubleIterable$TapDoubleIterator implements org.eclipse.collections.api.iterator.DoubleIterator
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator
  super_class: java.lang.Object
{
  private final org.eclipse.collections.api.iterator.DoubleIterator iterator;
    descriptor: Lorg/eclipse/collections/api/iterator/DoubleIterator;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure procedure;
    descriptor: Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.eclipse.collections.api.DoubleIterable, org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure);
    descriptor: (Lorg/eclipse/collections/api/DoubleIterable;Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
        start local 1 // org.eclipse.collections.api.DoubleIterable iterable
        start local 2 // org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure procedure
         0: .line 96
            aload 0 /* this */
            aload 1 /* iterable */
            invokeinterface org.eclipse.collections.api.DoubleIterable.doubleIterator:()Lorg/eclipse/collections/api/iterator/DoubleIterator;
            aload 2 /* procedure */
            invokespecial org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator.<init>:(Lorg/eclipse/collections/api/iterator/DoubleIterator;Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;)V
         1: .line 97
            return
        end local 2 // org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure procedure
        end local 1 // org.eclipse.collections.api.DoubleIterable iterable
        end local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0       this  Lorg/eclipse/collections/impl/lazy/primitive/TapDoubleIterable$TapDoubleIterator;
            0    2     1   iterable  Lorg/eclipse/collections/api/DoubleIterable;
            0    2     2  procedure  Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;
    MethodParameters:
           Name  Flags
      iterable   
      procedure  

  public void <init>(org.eclipse.collections.api.iterator.DoubleIterator, org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure);
    descriptor: (Lorg/eclipse/collections/api/iterator/DoubleIterator;Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
        start local 1 // org.eclipse.collections.api.iterator.DoubleIterator iterator
        start local 2 // org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure procedure
         0: .line 99
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 101
            aload 0 /* this */
            aload 1 /* iterator */
            putfield org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator.iterator:Lorg/eclipse/collections/api/iterator/DoubleIterator;
         2: .line 102
            aload 0 /* this */
            aload 2 /* procedure */
            putfield org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator.procedure:Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;
         3: .line 103
            return
        end local 2 // org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure procedure
        end local 1 // org.eclipse.collections.api.iterator.DoubleIterator iterator
        end local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lorg/eclipse/collections/impl/lazy/primitive/TapDoubleIterable$TapDoubleIterator;
            0    4     1   iterator  Lorg/eclipse/collections/api/iterator/DoubleIterator;
            0    4     2  procedure  Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;
    MethodParameters:
           Name  Flags
      iterator   
      procedure  

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
         0: .line 108
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator.iterator:Lorg/eclipse/collections/api/iterator/DoubleIterator;
            invokeinterface org.eclipse.collections.api.iterator.DoubleIterator.hasNext:()Z
            ireturn
        end local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/lazy/primitive/TapDoubleIterable$TapDoubleIterator;

  public double next();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
         0: .line 114
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator.iterator:Lorg/eclipse/collections/api/iterator/DoubleIterator;
            invokeinterface org.eclipse.collections.api.iterator.DoubleIterator.next:()D
            dstore 1 /* next */
        start local 1 // double next
         1: .line 115
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator.procedure:Lorg/eclipse/collections/api/block/procedure/primitive/DoubleProcedure;
            dload 1 /* next */
            invokeinterface org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure.value:(D)V
         2: .line 116
            dload 1 /* next */
            dreturn
        end local 1 // double next
        end local 0 // org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/eclipse/collections/impl/lazy/primitive/TapDoubleIterable$TapDoubleIterator;
            1    3     1  next  D
}
SourceFile: "TapDoubleIterable.java"
NestHost: org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable
InnerClasses:
  public TapDoubleIterator = org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable$TapDoubleIterator of org.eclipse.collections.impl.lazy.primitive.TapDoubleIterable