https://www.graalvm.org/ 
final class com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject implements com.oracle.truffle.api.interop.TruffleObject
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject
  super_class: java.lang.Object
{
  private final java.lang.String name;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.Object owner;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)V
    flags: (0x0000) 
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
        start local 1 // java.lang.String name
        start local 2 // java.lang.String ownerName
         0: .line 339
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 340
            aload 0 /* this */
            aload 1 /* name */
            putfield com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject.name:Ljava/lang/String;
         2: .line 341
            aload 0 /* this */
            new com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject$OwnerMetaObject
            dup
            aload 2 /* ownerName */
            invokespecial com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject$OwnerMetaObject.<init>:(Ljava/lang/String;)V
            putfield com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject.owner:Ljava/lang/Object;
         3: .line 342
            return
        end local 2 // java.lang.String ownerName
        end local 1 // java.lang.String name
        end local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lcom/oracle/truffle/api/test/TruffleExceptionTest$StackTraceElementGuestObject;
            0    4     1       name  Ljava/lang/String;
            0    4     2  ownerName  Ljava/lang/String;
    MethodParameters:
           Name  Flags
      name       
      ownerName  

  boolean hasExecutableName();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
         0: .line 347
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/test/TruffleExceptionTest$StackTraceElementGuestObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.Object getExecutableName();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
         0: .line 352
            aload 0 /* this */
            getfield com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject.name:Ljava/lang/String;
            areturn
        end local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/test/TruffleExceptionTest$StackTraceElementGuestObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  boolean hasDeclaringMetaObject();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
         0: .line 358
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/test/TruffleExceptionTest$StackTraceElementGuestObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  java.lang.Object getDeclaringMetaObject();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
         0: .line 363
            aload 0 /* this */
            getfield com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject.owner:Ljava/lang/Object;
            areturn
        end local 0 // com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/test/TruffleExceptionTest$StackTraceElementGuestObject;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
}
SourceFile: "TruffleExceptionTest.java"
NestHost: com.oracle.truffle.api.test.TruffleExceptionTest
InnerClasses:
  final StackTraceElementGuestObject = com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject of com.oracle.truffle.api.test.TruffleExceptionTest
  final OwnerMetaObject = com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject$OwnerMetaObject of com.oracle.truffle.api.test.TruffleExceptionTest$StackTraceElementGuestObject
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/interop/InteropLibrary;)