https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
class com.google.common.collect.Iterators$10 extends com.google.common.collect.UnmodifiableIterator<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.Iterators$10
  super_class: com.google.common.collect.UnmodifiableIterator
{
  private final java.util.Enumeration val$enumeration;
    descriptor: Ljava/util/Enumeration;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.util.Enumeration);
    descriptor: (Ljava/util/Enumeration;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.collect.Iterators$10 this
         0: .line 1079
            aload 0 /* this */
            aload 1
            putfield com.google.common.collect.Iterators$10.val$enumeration:Ljava/util/Enumeration;
            aload 0 /* this */
            invokespecial com.google.common.collect.UnmodifiableIterator.<init>:()V
            return
        end local 0 // com.google.common.collect.Iterators$10 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Iterators$10;
    MethodParameters:
                 Name  Flags
      val$enumeration  final

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Iterators$10 this
         0: .line 1082
            aload 0 /* this */
            getfield com.google.common.collect.Iterators$10.val$enumeration:Ljava/util/Enumeration;
            invokeinterface java.util.Enumeration.hasMoreElements:()Z
            ireturn
        end local 0 // com.google.common.collect.Iterators$10 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Iterators$10;

  public T next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Iterators$10 this
         0: .line 1087
            aload 0 /* this */
            getfield com.google.common.collect.Iterators$10.val$enumeration:Ljava/util/Enumeration;
            invokeinterface java.util.Enumeration.nextElement:()Ljava/lang/Object;
            areturn
        end local 0 // com.google.common.collect.Iterators$10 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Iterators$10;
    Signature: ()TT;
}
Signature: Lcom/google/common/collect/UnmodifiableIterator<TT;>;
SourceFile: "Iterators.java"
EnclosingMethod: com.google.common.collect.Iterators.forEnumeration:(Ljava/util/Enumeration;)Lcom/google/common/collect/UnmodifiableIterator;
NestHost: com.google.common.collect.Iterators
InnerClasses:
  com.google.common.collect.Iterators$10