https://www.graalvm.org/ 
class com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode extends com.oracle.truffle.api.test.ThreadSafetyTest$ValueNode
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode
  super_class: com.oracle.truffle.api.test.ThreadSafetyTest$ValueNode
{
  private final int value;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(int);
    descriptor: (I)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode this
        start local 1 // int value
         0: .line 182
            aload 0 /* this */
            invokespecial com.oracle.truffle.api.test.ThreadSafetyTest$ValueNode.<init>:()V
         1: .line 183
            aload 0 /* this */
            iload 1 /* value */
            putfield com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode.value:I
         2: .line 184
            return
        end local 1 // int value
        end local 0 // com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/api/test/ThreadSafetyTest$ConstNode;
            0    3     1  value  I
    MethodParameters:
       Name  Flags
      value  

  int execute(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)I
    flags: (0x0000) 
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 188
            aload 0 /* this */
            getfield com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode.value:I
            ireturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lcom/oracle/truffle/api/test/ThreadSafetyTest$ConstNode;
            0    1     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  
}
SourceFile: "ThreadSafetyTest.java"
NestHost: com.oracle.truffle.api.test.ThreadSafetyTest
InnerClasses:
  ConstNode = com.oracle.truffle.api.test.ThreadSafetyTest$ConstNode of com.oracle.truffle.api.test.ThreadSafetyTest
  abstract ValueNode = com.oracle.truffle.api.test.ThreadSafetyTest$ValueNode of com.oracle.truffle.api.test.ThreadSafetyTest