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 
class org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator implements org.eclipse.collections.api.iterator.CharIterator
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator
  super_class: java.lang.Object
{
  private int currentIndex;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  final org.eclipse.collections.impl.string.immutable.CharAdapter this$0;
    descriptor: Lorg/eclipse/collections/impl/string/immutable/CharAdapter;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private void <init>(org.eclipse.collections.impl.string.immutable.CharAdapter);
    descriptor: (Lorg/eclipse/collections/impl/string/immutable/CharAdapter;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator this
         0: .line 603
            aload 0 /* this */
            aload 1
            putfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.this$0:Lorg/eclipse/collections/impl/string/immutable/CharAdapter;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/string/immutable/CharAdapter$InternalCharIterator;
    MethodParameters:
        Name  Flags
      this$0  final

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator this
         0: .line 613
            aload 0 /* this */
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.currentIndex:I
            aload 0 /* this */
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.this$0:Lorg/eclipse/collections/impl/string/immutable/CharAdapter;
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter.adapted:Ljava/lang/String;
            invokevirtual java.lang.String.length:()I
            if_icmpeq 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/eclipse/collections/impl/string/immutable/CharAdapter$InternalCharIterator;

  public char next();
    descriptor: ()C
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator this
         0: .line 619
            aload 0 /* this */
            invokevirtual org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.hasNext:()Z
            ifne 2
         1: .line 621
            new java.util.NoSuchElementException
            dup
            invokespecial java.util.NoSuchElementException.<init>:()V
            athrow
         2: .line 623
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.this$0:Lorg/eclipse/collections/impl/string/immutable/CharAdapter;
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter.adapted:Ljava/lang/String;
            aload 0 /* this */
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.currentIndex:I
            invokevirtual java.lang.String.charAt:(I)C
            istore 1 /* next */
        start local 1 // char next
         3: .line 624
            aload 0 /* this */
            dup
            getfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.currentIndex:I
            iconst_1
            iadd
            putfield org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator.currentIndex:I
         4: .line 625
            iload 1 /* next */
            ireturn
        end local 1 // char next
        end local 0 // org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/eclipse/collections/impl/string/immutable/CharAdapter$InternalCharIterator;
            3    5     1  next  C
}
SourceFile: "CharAdapter.java"
NestHost: org.eclipse.collections.impl.string.immutable.CharAdapter
InnerClasses:
  private InternalCharIterator = org.eclipse.collections.impl.string.immutable.CharAdapter$InternalCharIterator of org.eclipse.collections.impl.string.immutable.CharAdapter