https://www.graalvm.org/ 
public class com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token
  super_class: java.lang.Object
{
  private final com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind kind;
    descriptor: Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind);
    descriptor: (Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token this
        start local 1 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind kind
         0: .line 122
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 123
            aload 0 /* this */
            aload 1 /* kind */
            putfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token.kind:Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;
         2: .line 124
            return
        end local 1 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind kind
        end local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token;
            0    3     1  kind  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;
    MethodParameters:
      Name  Flags
      kind  

  public com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind getKind();
    descriptor: ()Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token this
         0: .line 127
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token.kind:Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;
            areturn
        end local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token;
}
SourceFile: "ReplaceStringParser.java"
NestHost: com.oracle.truffle.js.builtins.helper.ReplaceStringParser
InnerClasses:
  public Token = com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token of com.oracle.truffle.js.builtins.helper.ReplaceStringParser
  public final Kind = com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind of com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token