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.graph.DirectedGraphConnections$6 implements com.google.common.base.Function<com.google.common.graph.DirectedGraphConnections$NodeConnection<N>, com.google.common.graph.EndpointPair<N>>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.graph.DirectedGraphConnections$6
  super_class: java.lang.Object
{
  final com.google.common.graph.DirectedGraphConnections this$0;
    descriptor: Lcom/google/common/graph/DirectedGraphConnections;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

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

  void <init>(com.google.common.graph.DirectedGraphConnections, java.lang.Object);
    descriptor: (Lcom/google/common/graph/DirectedGraphConnections;Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.graph.DirectedGraphConnections$6 this
         0: .line 395
            aload 0 /* this */
            aload 1
            putfield com.google.common.graph.DirectedGraphConnections$6.this$0:Lcom/google/common/graph/DirectedGraphConnections;
            aload 0 /* this */
            aload 2
            putfield com.google.common.graph.DirectedGraphConnections$6.val$thisNode:Ljava/lang/Object;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.google.common.graph.DirectedGraphConnections$6 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/graph/DirectedGraphConnections$6;
    MethodParameters:
              Name  Flags
      this$0        final
      val$thisNode  final

  public com.google.common.graph.EndpointPair<N> apply(com.google.common.graph.DirectedGraphConnections$NodeConnection<N>);
    descriptor: (Lcom/google/common/graph/DirectedGraphConnections$NodeConnection;)Lcom/google/common/graph/EndpointPair;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.graph.DirectedGraphConnections$6 this
        start local 1 // com.google.common.graph.DirectedGraphConnections$NodeConnection connection
         0: .line 398
            aload 1 /* connection */
            instanceof com.google.common.graph.DirectedGraphConnections$NodeConnection$Succ
            ifeq 2
         1: .line 399
            aload 0 /* this */
            getfield com.google.common.graph.DirectedGraphConnections$6.val$thisNode:Ljava/lang/Object;
            aload 1 /* connection */
            getfield com.google.common.graph.DirectedGraphConnections$NodeConnection.node:Ljava/lang/Object;
            invokestatic com.google.common.graph.EndpointPair.ordered:(Ljava/lang/Object;Ljava/lang/Object;)Lcom/google/common/graph/EndpointPair;
            areturn
         2: .line 401
      StackMap locals:
      StackMap stack:
            aload 1 /* connection */
            getfield com.google.common.graph.DirectedGraphConnections$NodeConnection.node:Ljava/lang/Object;
            aload 0 /* this */
            getfield com.google.common.graph.DirectedGraphConnections$6.val$thisNode:Ljava/lang/Object;
            invokestatic com.google.common.graph.EndpointPair.ordered:(Ljava/lang/Object;Ljava/lang/Object;)Lcom/google/common/graph/EndpointPair;
            areturn
        end local 1 // com.google.common.graph.DirectedGraphConnections$NodeConnection connection
        end local 0 // com.google.common.graph.DirectedGraphConnections$6 this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/google/common/graph/DirectedGraphConnections$6;
            0    3     1  connection  Lcom/google/common/graph/DirectedGraphConnections$NodeConnection<TN;>;
    Signature: (Lcom/google/common/graph/DirectedGraphConnections$NodeConnection<TN;>;)Lcom/google/common/graph/EndpointPair<TN;>;
    MethodParameters:
            Name  Flags
      connection  

  public java.lang.Object apply(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast com.google.common.graph.DirectedGraphConnections$NodeConnection
            invokevirtual com.google.common.graph.DirectedGraphConnections$6.apply:(Lcom/google/common/graph/DirectedGraphConnections$NodeConnection;)Lcom/google/common/graph/EndpointPair;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Lcom/google/common/base/Function<Lcom/google/common/graph/DirectedGraphConnections$NodeConnection<TN;>;Lcom/google/common/graph/EndpointPair<TN;>;>;
SourceFile: "DirectedGraphConnections.java"
EnclosingMethod: com.google.common.graph.DirectedGraphConnections.incidentEdgeIterator:(Ljava/lang/Object;)Ljava/util/Iterator;
NestHost: com.google.common.graph.DirectedGraphConnections
InnerClasses:
  com.google.common.graph.DirectedGraphConnections$6
  private abstract NodeConnection = com.google.common.graph.DirectedGraphConnections$NodeConnection of com.google.common.graph.DirectedGraphConnections
  final Succ = com.google.common.graph.DirectedGraphConnections$NodeConnection$Succ of com.google.common.graph.DirectedGraphConnections$NodeConnection