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.FluentIterable$1 extends com.google.common.collect.FluentIterable<E>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.FluentIterable$1
  super_class: com.google.common.collect.FluentIterable
{
  private final java.lang.Iterable val$iterable;
    descriptor: Ljava/lang/Iterable;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.lang.Iterable, java.lang.Iterable);
    descriptor: (Ljava/lang/Iterable;Ljava/lang/Iterable;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.collect.FluentIterable$1 this
        start local 1 // java.lang.Iterable $anonymous0
         0: .line 141
            aload 0 /* this */
            aload 2
            putfield com.google.common.collect.FluentIterable$1.val$iterable:Ljava/lang/Iterable;
            aload 0 /* this */
            aload 1 /* $anonymous0 */
            invokespecial com.google.common.collect.FluentIterable.<init>:(Ljava/lang/Iterable;)V
            return
        end local 1 // java.lang.Iterable $anonymous0
        end local 0 // com.google.common.collect.FluentIterable$1 this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lcom/google/common/collect/FluentIterable$1;
            0    1     1  $anonymous0  Ljava/lang/Iterable<TE;>;
    MethodParameters:
              Name  Flags
      $anonymous0   
      val$iterable  final

  public java.util.Iterator<E> iterator();
    descriptor: ()Ljava/util/Iterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.FluentIterable$1 this
         0: .line 144
            aload 0 /* this */
            getfield com.google.common.collect.FluentIterable$1.val$iterable:Ljava/lang/Iterable;
            invokeinterface java.lang.Iterable.iterator:()Ljava/util/Iterator;
            areturn
        end local 0 // com.google.common.collect.FluentIterable$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/FluentIterable$1;
    Signature: ()Ljava/util/Iterator<TE;>;
}
Signature: Lcom/google/common/collect/FluentIterable<TE;>;
SourceFile: "FluentIterable.java"
EnclosingMethod: com.google.common.collect.FluentIterable.from:(Ljava/lang/Iterable;)Lcom/google/common/collect/FluentIterable;
NestHost: com.google.common.collect.FluentIterable
InnerClasses:
  com.google.common.collect.FluentIterable$1