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.ChunkDoubleIterable extends org.eclipse.collections.impl.lazy.AbstractLazyIterable<org.eclipse.collections.api.DoubleIterable>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable
  super_class: org.eclipse.collections.impl.lazy.AbstractLazyIterable
{
  private final org.eclipse.collections.api.DoubleIterable adapted;
    descriptor: Lorg/eclipse/collections/api/DoubleIterable;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int size;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.eclipse.collections.api.DoubleIterable, int);
    descriptor: (Lorg/eclipse/collections/api/DoubleIterable;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable this
        start local 1 // org.eclipse.collections.api.DoubleIterable delegate
        start local 2 // int size
         0: .line 34
            aload 0 /* this */
            invokespecial org.eclipse.collections.impl.lazy.AbstractLazyIterable.<init>:()V
         1: .line 36
            iload 2 /* size */
            ifgt 3
         2: .line 38
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Size for groups must be positive but was: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 2 /* size */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 41
      StackMap locals: org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable org.eclipse.collections.api.DoubleIterable int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* delegate */
            putfield org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable.adapted:Lorg/eclipse/collections/api/DoubleIterable;
         4: .line 42
            aload 0 /* this */
            iload 2 /* size */
            putfield org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable.size:I
         5: .line 43
            return
        end local 2 // int size
        end local 1 // org.eclipse.collections.api.DoubleIterable delegate
        end local 0 // org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    6     0      this  Lorg/eclipse/collections/impl/lazy/primitive/ChunkDoubleIterable;
            0    6     1  delegate  Lorg/eclipse/collections/api/DoubleIterable;
            0    6     2      size  I
    MethodParameters:
          Name  Flags
      delegate  
      size      

  public java.util.Iterator<org.eclipse.collections.api.DoubleIterable> iterator();
    descriptor: ()Ljava/util/Iterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable this
         0: .line 48
            new org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable$ChunkDoubleIterator
            dup
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable.adapted:Lorg/eclipse/collections/api/DoubleIterable;
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable.size:I
            invokespecial org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable$ChunkDoubleIterator.<init>:(Lorg/eclipse/collections/api/DoubleIterable;I)V
            areturn
        end local 0 // org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/lazy/primitive/ChunkDoubleIterable;
    Signature: ()Ljava/util/Iterator<Lorg/eclipse/collections/api/DoubleIterable;>;

  public void each(org.eclipse.collections.api.block.procedure.Procedure<? super org.eclipse.collections.api.DoubleIterable>);
    descriptor: (Lorg/eclipse/collections/api/block/procedure/Procedure;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable this
        start local 1 // org.eclipse.collections.api.block.procedure.Procedure procedure
         0: .line 54
            aload 0 /* this */
            aload 1 /* procedure */
            invokestatic org.eclipse.collections.impl.utility.internal.IterableIterate.forEach:(Ljava/lang/Iterable;Lorg/eclipse/collections/api/block/procedure/Procedure;)V
         1: .line 55
            return
        end local 1 // org.eclipse.collections.api.block.procedure.Procedure procedure
        end local 0 // org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0       this  Lorg/eclipse/collections/impl/lazy/primitive/ChunkDoubleIterable;
            0    2     1  procedure  Lorg/eclipse/collections/api/block/procedure/Procedure<-Lorg/eclipse/collections/api/DoubleIterable;>;
    Signature: (Lorg/eclipse/collections/api/block/procedure/Procedure<-Lorg/eclipse/collections/api/DoubleIterable;>;)V
    MethodParameters:
           Name  Flags
      procedure  
}
Signature: Lorg/eclipse/collections/impl/lazy/AbstractLazyIterable<Lorg/eclipse/collections/api/DoubleIterable;>;
SourceFile: "ChunkDoubleIterable.java"
NestMembers:
  org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable$ChunkDoubleIterator
InnerClasses:
  public ChunkDoubleIterator = org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable$ChunkDoubleIterator of org.eclipse.collections.impl.lazy.primitive.ChunkDoubleIterable