final class org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator extends org.jruby.util.collections.ConcurrentWeakHashMap<K, V>.HashIterator implements java.util.Iterator<K>, java.util.Enumeration<K>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator
  super_class: org.jruby.util.collections.ConcurrentWeakHashMap$HashIterator
{
  final org.jruby.util.collections.ConcurrentWeakHashMap this$0;
    descriptor: Lorg/jruby/util/collections/ConcurrentWeakHashMap;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.jruby.util.collections.ConcurrentWeakHashMap);
    descriptor: (Lorg/jruby/util/collections/ConcurrentWeakHashMap;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator this
         0: .line 1228
            aload 0 /* this */
            aload 1
            putfield org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator.this$0:Lorg/jruby/util/collections/ConcurrentWeakHashMap;
            aload 0 /* this */
            aload 1
            invokespecial org.jruby.util.collections.ConcurrentWeakHashMap$HashIterator.<init>:(Lorg/jruby/util/collections/ConcurrentWeakHashMap;)V
            return
        end local 0 // org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/collections/ConcurrentWeakHashMap$KeyIterator;
    MethodParameters:
        Name  Flags
      this$0  final

  public K next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator this
         0: .line 1230
            aload 0 /* this */
            invokespecial org.jruby.util.collections.ConcurrentWeakHashMap$HashIterator.nextEntry:()Lorg/jruby/util/collections/ConcurrentWeakHashMap$HashEntry;
            getfield org.jruby.util.collections.ConcurrentWeakHashMap$HashEntry.keyRef:Ljava/lang/ref/WeakReference;
            invokevirtual java.lang.ref.WeakReference.get:()Ljava/lang/Object;
            areturn
        end local 0 // org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/collections/ConcurrentWeakHashMap$KeyIterator;
    Signature: ()TK;

  public K nextElement();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator this
         0: .line 1234
            aload 0 /* this */
            invokespecial org.jruby.util.collections.ConcurrentWeakHashMap$HashIterator.nextEntry:()Lorg/jruby/util/collections/ConcurrentWeakHashMap$HashEntry;
            getfield org.jruby.util.collections.ConcurrentWeakHashMap$HashEntry.keyRef:Ljava/lang/ref/WeakReference;
            invokevirtual java.lang.ref.WeakReference.get:()Ljava/lang/Object;
            areturn
        end local 0 // org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/collections/ConcurrentWeakHashMap$KeyIterator;
    Signature: ()TK;
}
Signature: Lorg/jruby/util/collections/ConcurrentWeakHashMap<TK;TV;>.HashIterator;Ljava/util/Iterator<TK;>;Ljava/util/Enumeration<TK;>;
SourceFile: "ConcurrentWeakHashMap.java"
NestHost: org.jruby.util.collections.ConcurrentWeakHashMap
InnerClasses:
  final HashEntry = org.jruby.util.collections.ConcurrentWeakHashMap$HashEntry of org.jruby.util.collections.ConcurrentWeakHashMap
  abstract HashIterator = org.jruby.util.collections.ConcurrentWeakHashMap$HashIterator of org.jruby.util.collections.ConcurrentWeakHashMap
  final KeyIterator = org.jruby.util.collections.ConcurrentWeakHashMap$KeyIterator of org.jruby.util.collections.ConcurrentWeakHashMap