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.Maps$8 extends com.google.common.collect.UnmodifiableIterator<java.util.Map$Entry<K, V>>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.Maps$8
  super_class: com.google.common.collect.UnmodifiableIterator
{
  private final java.util.Iterator val$entryIterator;
    descriptor: Ljava/util/Iterator;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.util.Iterator);
    descriptor: (Ljava/util/Iterator;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.collect.Maps$8 this
         0: .line 1420
            aload 0 /* this */
            aload 1
            putfield com.google.common.collect.Maps$8.val$entryIterator:Ljava/util/Iterator;
            aload 0 /* this */
            invokespecial com.google.common.collect.UnmodifiableIterator.<init>:()V
            return
        end local 0 // com.google.common.collect.Maps$8 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Maps$8;
    MethodParameters:
                   Name  Flags
      val$entryIterator  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.Maps$8 this
         0: .line 1423
            aload 0 /* this */
            getfield com.google.common.collect.Maps$8.val$entryIterator:Ljava/util/Iterator;
            invokeinterface java.util.Iterator.hasNext:()Z
            ireturn
        end local 0 // com.google.common.collect.Maps$8 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Maps$8;

  public java.util.Map$Entry<K, V> next();
    descriptor: ()Ljava/util/Map$Entry;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Maps$8 this
         0: .line 1428
            aload 0 /* this */
            getfield com.google.common.collect.Maps$8.val$entryIterator:Ljava/util/Iterator;
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.util.Map$Entry
            invokestatic com.google.common.collect.Maps.unmodifiableEntry:(Ljava/util/Map$Entry;)Ljava/util/Map$Entry;
            areturn
        end local 0 // com.google.common.collect.Maps$8 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Maps$8;
    Signature: ()Ljava/util/Map$Entry<TK;TV;>;

  public java.lang.Object next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual com.google.common.collect.Maps$8.next:()Ljava/util/Map$Entry;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Lcom/google/common/collect/UnmodifiableIterator<Ljava/util/Map$Entry<TK;TV;>;>;
SourceFile: "Maps.java"
EnclosingMethod: com.google.common.collect.Maps.unmodifiableEntryIterator:(Ljava/util/Iterator;)Lcom/google/common/collect/UnmodifiableIterator;
NestHost: com.google.common.collect.Maps
InnerClasses:
  com.google.common.collect.Maps$8
  public abstract Entry = java.util.Map$Entry of java.util.Map