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.LinkedListMultimap$1 extends java.util.AbstractSequentialList<V>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.LinkedListMultimap$1
  super_class: java.util.AbstractSequentialList
{
  final com.google.common.collect.LinkedListMultimap this$0;
    descriptor: Lcom/google/common/collect/LinkedListMultimap;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final java.lang.Object val$key;
    descriptor: Ljava/lang/Object;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.google.common.collect.LinkedListMultimap, java.lang.Object);
    descriptor: (Lcom/google/common/collect/LinkedListMultimap;Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.collect.LinkedListMultimap$1 this
         0: .line 680
            aload 0 /* this */
            aload 1
            putfield com.google.common.collect.LinkedListMultimap$1.this$0:Lcom/google/common/collect/LinkedListMultimap;
            aload 0 /* this */
            aload 2
            putfield com.google.common.collect.LinkedListMultimap$1.val$key:Ljava/lang/Object;
            aload 0 /* this */
            invokespecial java.util.AbstractSequentialList.<init>:()V
            return
        end local 0 // com.google.common.collect.LinkedListMultimap$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/LinkedListMultimap$1;
    MethodParameters:
         Name  Flags
      this$0   final
      val$key  final

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // com.google.common.collect.LinkedListMultimap$1 this
         0: .line 683
            aload 0 /* this */
            getfield com.google.common.collect.LinkedListMultimap$1.this$0:Lcom/google/common/collect/LinkedListMultimap;
            getfield com.google.common.collect.LinkedListMultimap.keyToKeyList:Ljava/util/Map;
            aload 0 /* this */
            getfield com.google.common.collect.LinkedListMultimap$1.val$key:Ljava/lang/Object;
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.google.common.collect.LinkedListMultimap$KeyList
            astore 1 /* keyList */
        start local 1 // com.google.common.collect.LinkedListMultimap$KeyList keyList
         1: .line 684
            aload 1 /* keyList */
            ifnonnull 2
            iconst_0
            goto 3
      StackMap locals: com.google.common.collect.LinkedListMultimap$KeyList
      StackMap stack:
         2: aload 1 /* keyList */
            getfield com.google.common.collect.LinkedListMultimap$KeyList.count:I
      StackMap locals:
      StackMap stack: int
         3: ireturn
        end local 1 // com.google.common.collect.LinkedListMultimap$KeyList keyList
        end local 0 // com.google.common.collect.LinkedListMultimap$1 this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lcom/google/common/collect/LinkedListMultimap$1;
            1    4     1  keyList  Lcom/google/common/collect/LinkedListMultimap$KeyList<TK;TV;>;

  public java.util.ListIterator<V> listIterator(int);
    descriptor: (I)Ljava/util/ListIterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.google.common.collect.LinkedListMultimap$1 this
        start local 1 // int index
         0: .line 689
            new com.google.common.collect.LinkedListMultimap$ValueForKeyIterator
            dup
            aload 0 /* this */
            getfield com.google.common.collect.LinkedListMultimap$1.this$0:Lcom/google/common/collect/LinkedListMultimap;
            aload 0 /* this */
            getfield com.google.common.collect.LinkedListMultimap$1.val$key:Ljava/lang/Object;
            iload 1 /* index */
            invokespecial com.google.common.collect.LinkedListMultimap$ValueForKeyIterator.<init>:(Lcom/google/common/collect/LinkedListMultimap;Ljava/lang/Object;I)V
            areturn
        end local 1 // int index
        end local 0 // com.google.common.collect.LinkedListMultimap$1 this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/google/common/collect/LinkedListMultimap$1;
            0    1     1  index  I
    Signature: (I)Ljava/util/ListIterator<TV;>;
    MethodParameters:
       Name  Flags
      index  
}
Signature: Ljava/util/AbstractSequentialList<TV;>;
SourceFile: "LinkedListMultimap.java"
EnclosingMethod: com.google.common.collect.LinkedListMultimap.get:(Ljava/lang/Object;)Ljava/util/List;
NestHost: com.google.common.collect.LinkedListMultimap
InnerClasses:
  com.google.common.collect.LinkedListMultimap$1
  private KeyList = com.google.common.collect.LinkedListMultimap$KeyList of com.google.common.collect.LinkedListMultimap
  private ValueForKeyIterator = com.google.common.collect.LinkedListMultimap$ValueForKeyIterator of com.google.common.collect.LinkedListMultimap