https://www.graalvm.org/ 
public class com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken extends com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken
  super_class: com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token
{
  private final int groupNumber;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int literalStart;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int literalEnd;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(int, int, int);
    descriptor: (III)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
        start local 1 // int groupNumber
        start local 2 // int literalStart
        start local 3 // int literalEnd
         0: .line 158
            aload 0 /* this */
            getstatic com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token$Kind.captureGroup:Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;
            invokespecial com.oracle.truffle.js.builtins.helper.ReplaceStringParser$Token.<init>:(Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$Token$Kind;)V
         1: .line 159
            aload 0 /* this */
            iload 1 /* groupNumber */
            putfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken.groupNumber:I
         2: .line 160
            aload 0 /* this */
            iload 2 /* literalStart */
            putfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken.literalStart:I
         3: .line 161
            aload 0 /* this */
            iload 3 /* literalEnd */
            putfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken.literalEnd:I
         4: .line 162
            return
        end local 3 // int literalEnd
        end local 2 // int literalStart
        end local 1 // int groupNumber
        end local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    5     0          this  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$CaptureGroupToken;
            0    5     1   groupNumber  I
            0    5     2  literalStart  I
            0    5     3    literalEnd  I
    MethodParameters:
              Name  Flags
      groupNumber   
      literalStart  
      literalEnd    

  public int getGroupNumber();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
         0: .line 165
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken.groupNumber:I
            ireturn
        end local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$CaptureGroupToken;

  public int getLiteralStart();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
         0: .line 169
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken.literalStart:I
            ireturn
        end local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$CaptureGroupToken;

  public int getLiteralEnd();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
         0: .line 173
            aload 0 /* this */
            getfield com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken.literalEnd:I
            ireturn
        end local 0 // com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/builtins/helper/ReplaceStringParser$CaptureGroupToken;
}
SourceFile: "ReplaceStringParser.java"
NestHost: com.oracle.truffle.js.builtins.helper.ReplaceStringParser
InnerClasses:
  public CaptureGroupToken = com.oracle.truffle.js.builtins.helper.ReplaceStringParser$CaptureGroupToken of com.oracle.truffle.js.builtins.helper.ReplaceStringParser
  public Token = com.oracle.truffle.js.builtins.helper.ReplaceStringParser$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