https://www.graalvm.org/ 
class com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper
  super_class: java.lang.Object
{
  final java.lang.Object delegate;
    descriptor: Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL

  void <init>(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper this
        start local 1 // java.lang.Object delegate
         0: .line 101
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 102
            aload 0 /* this */
            aload 1 /* delegate */
            putfield com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper.delegate:Ljava/lang/Object;
         2: .line 103
            return
        end local 1 // java.lang.Object delegate
        end local 0 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lcom/oracle/truffle/api/library/test/examples/TaintTrackingExample$TaintWrapper;
            0    3     1  delegate  Ljava/lang/Object;
    MethodParameters:
          Name  Flags
      delegate  

  final boolean isTainted();
    descriptor: ()Z
    flags: (0x0010) ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper this
         0: .line 107
            iconst_1
            ireturn
        end local 0 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/library/test/examples/TaintTrackingExample$TaintWrapper;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()

  final java.lang.Object send(com.oracle.truffle.api.library.Message, java.lang.Object[], com.oracle.truffle.api.library.ReflectionLibrary, com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintLibrary);
    descriptor: (Lcom/oracle/truffle/api/library/Message;[Ljava/lang/Object;Lcom/oracle/truffle/api/library/ReflectionLibrary;Lcom/oracle/truffle/api/library/test/examples/TaintTrackingExample$TaintLibrary;)Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL
    Code:
      stack=4, locals=6, args_size=5
        start local 0 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper this
        start local 1 // com.oracle.truffle.api.library.Message message
        start local 2 // java.lang.Object[] args
        start local 3 // com.oracle.truffle.api.library.ReflectionLibrary reflection
        start local 4 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintLibrary results
         0: .line 114
            aload 3 /* reflection */
            aload 0 /* this */
            getfield com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper.delegate:Ljava/lang/Object;
            aload 1 /* message */
            aload 2 /* args */
            invokevirtual com.oracle.truffle.api.library.ReflectionLibrary.send:(Ljava/lang/Object;Lcom/oracle/truffle/api/library/Message;[Ljava/lang/Object;)Ljava/lang/Object;
            astore 5 /* result */
        start local 5 // java.lang.Object result
         1: .line 116
            aload 4 /* results */
            aload 5 /* result */
            invokevirtual com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintLibrary.isTainted:(Ljava/lang/Object;)Z
            ifne 3
         2: .line 117
            new com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper
            dup
            aload 5 /* result */
            invokespecial com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper.<init>:(Ljava/lang/Object;)V
            astore 5 /* result */
         3: .line 119
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 5 /* result */
            areturn
        end local 5 // java.lang.Object result
        end local 4 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintLibrary results
        end local 3 // com.oracle.truffle.api.library.ReflectionLibrary reflection
        end local 2 // java.lang.Object[] args
        end local 1 // com.oracle.truffle.api.library.Message message
        end local 0 // com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lcom/oracle/truffle/api/library/test/examples/TaintTrackingExample$TaintWrapper;
            0    4     1     message  Lcom/oracle/truffle/api/library/Message;
            0    4     2        args  [Ljava/lang/Object;
            0    4     3  reflection  Lcom/oracle/truffle/api/library/ReflectionLibrary;
            0    4     4     results  Lcom/oracle/truffle/api/library/test/examples/TaintTrackingExample$TaintLibrary;
            1    4     5      result  Ljava/lang/Object;
    Exceptions:
      throws java.lang.Exception
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
      2:
        com.oracle.truffle.api.library.CachedLibrary(value = "this.delegate")
      3:
        com.oracle.truffle.api.library.CachedLibrary(limit = "1")
    MethodParameters:
            Name  Flags
      message     
      args        
      reflection  
      results     
}
SourceFile: "TaintTrackingExample.java"
NestHost: com.oracle.truffle.api.library.test.examples.TaintTrackingExample
InnerClasses:
  public abstract Repeat = com.oracle.truffle.api.library.ExportLibrary$Repeat of com.oracle.truffle.api.library.ExportLibrary
  abstract TaintLibrary = com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintLibrary of com.oracle.truffle.api.library.test.examples.TaintTrackingExample
  TaintWrapper = com.oracle.truffle.api.library.test.examples.TaintTrackingExample$TaintWrapper of com.oracle.truffle.api.library.test.examples.TaintTrackingExample
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportLibrary$Repeat(value = {com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/library/test/examples/TaintTrackingExample$TaintLibrary;), com.oracle.truffle.api.library.ExportLibrary(value = Lcom/oracle/truffle/api/library/ReflectionLibrary;)})