https://www.graalvm.org/ 
public final class com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt extends com.oracle.truffle.api.dsl.test.TypeSystemTest$ValueNode
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt
  super_class: com.oracle.truffle.api.dsl.test.TypeSystemTest$ValueNode
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt this
         0: .line 92
            aload 0 /* this */
            invokespecial com.oracle.truffle.api.dsl.test.TypeSystemTest$ValueNode.<init>:()V
            return
        end local 0 // com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/dsl/test/SpecializationGroupingTest$GenericInt;

  public java.lang.Object execute(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 96
            aload 0 /* this */
            aload 1 /* frame */
            invokevirtual com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt.executeInt:(Lcom/oracle/truffle/api/frame/VirtualFrame;)I
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            areturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/api/dsl/test/SpecializationGroupingTest$GenericInt;
            0    1     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  

  public int executeInt(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 101
            bipush 42
            ireturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/api/dsl/test/SpecializationGroupingTest$GenericInt;
            0    1     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  
}
SourceFile: "SpecializationGroupingTest.java"
NestHost: com.oracle.truffle.api.dsl.test.SpecializationGroupingTest
InnerClasses:
  public final GenericInt = com.oracle.truffle.api.dsl.test.SpecializationGroupingTest$GenericInt of com.oracle.truffle.api.dsl.test.SpecializationGroupingTest
  public ValueNode = com.oracle.truffle.api.dsl.test.TypeSystemTest$ValueNode of com.oracle.truffle.api.dsl.test.TypeSystemTest