https://www.graalvm.org/ 
class com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode extends com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode
  super_class: com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode
{
  com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode child;
    descriptor: Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$ExpressionNode;
    flags: (0x0000) 
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  final com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets this$0;
    descriptor: Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets, com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode);
    descriptor: (Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets;Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$ExpressionNode;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode this
        start local 2 // com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode child
         0: .line 684
            aload 0 /* this */
            aload 1
            putfield com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode.this$0:Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets;
            aload 0 /* this */
            invokespecial com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode.<init>:()V
         1: .line 685
            aload 0 /* this */
            aload 2 /* child */
            putfield com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode.child:Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$ExpressionNode;
         2: .line 686
            return
        end local 2 // com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode child
        end local 0 // com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$IncrementNode;
            0    3     2  child  Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$ExpressionNode;
    MethodParameters:
        Name  Flags
      this$0  final
      child   

  int execute(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)I
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 690
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode.child:Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$ExpressionNode;
            aload 1 /* frame */
            invokevirtual com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode.execute:(Lcom/oracle/truffle/api/frame/VirtualFrame;)I
            iconst_1
            iadd
            ireturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/api/instrumentation/InstrumentableNodeSnippets$IncrementNode;
            0    1     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  
}
SourceFile: "InstrumentableNode.java"
NestHost: com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets
InnerClasses:
  abstract ExpressionNode = com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$ExpressionNode of com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets
  IncrementNode = com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets$IncrementNode of com.oracle.truffle.api.instrumentation.InstrumentableNodeSnippets
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node