https://www.graalvm.org/ 
public class com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel extends com.oracle.truffle.api.instrumentation.TruffleInstrument
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel
  super_class: com.oracle.truffle.api.instrumentation.TruffleInstrument
{
  private com.oracle.truffle.api.instrumentation.TruffleInstrument$Env env;
    descriptor: Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
    flags: (0x0002) ACC_PRIVATE

  private com.oracle.truffle.api.instrumentation.EventBinding<? extends com.oracle.truffle.api.instrumentation.ExecutionEventListener> bindingExec;
    descriptor: Lcom/oracle/truffle/api/instrumentation/EventBinding;
    flags: (0x0002) ACC_PRIVATE
    Signature: Lcom/oracle/truffle/api/instrumentation/EventBinding<+Lcom/oracle/truffle/api/instrumentation/ExecutionEventListener;>;

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
         0: .line 900
            aload 0 /* this */
            invokespecial com.oracle.truffle.api.instrumentation.TruffleInstrument.<init>:()V
            return
        end local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;

  protected void onCreate(com.oracle.truffle.api.instrumentation.TruffleInstrument$Env);
    descriptor: (Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
        start local 1 // com.oracle.truffle.api.instrumentation.TruffleInstrument$Env env
         0: .line 908
            aload 0 /* this */
            aload 1 /* env */
            putfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.env:Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
         1: .line 909
            aload 1 /* env */
            aload 0 /* this */
            invokevirtual com.oracle.truffle.api.instrumentation.TruffleInstrument$Env.registerService:(Ljava/lang/Object;)V
         2: .line 910
            return
        end local 1 // com.oracle.truffle.api.instrumentation.TruffleInstrument$Env env
        end local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;
            0    3     1   env  Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
    MethodParameters:
      Name  Flags
      env   

  protected void onDispose(com.oracle.truffle.api.instrumentation.TruffleInstrument$Env);
    descriptor: (Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
        start local 1 // com.oracle.truffle.api.instrumentation.TruffleInstrument$Env env
         0: .line 915
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.bindingExec:Lcom/oracle/truffle/api/instrumentation/EventBinding;
            ifnull 3
         1: .line 916
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.bindingExec:Lcom/oracle/truffle/api/instrumentation/EventBinding;
            invokevirtual com.oracle.truffle.api.instrumentation.EventBinding.dispose:()V
         2: .line 917
            aload 0 /* this */
            aconst_null
            putfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.bindingExec:Lcom/oracle/truffle/api/instrumentation/EventBinding;
         3: .line 919
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* env */
            invokespecial com.oracle.truffle.api.instrumentation.TruffleInstrument.onDispose:(Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;)V
         4: .line 920
            return
        end local 1 // com.oracle.truffle.api.instrumentation.TruffleInstrument$Env env
        end local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;
            0    5     1   env  Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
    MethodParameters:
      Name  Flags
      env   

  void submitOneForAll(java.util.concurrent.CompletableFuture<java.lang.Throwable>);
    descriptor: (Ljava/util/concurrent/CompletableFuture;)V
    flags: (0x0000) 
    Code:
      stack=10, locals=5, args_size=2
        start local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
        start local 1 // java.util.concurrent.CompletableFuture exception
         0: .line 923
            iconst_1
            anewarray java.lang.ThreadDeath
            astore 2 /* unwindPtr */
        start local 2 // java.lang.ThreadDeath[] unwindPtr
         1: .line 924
            new java.util.concurrent.CyclicBarrier
            dup
            iconst_3
            invokespecial java.util.concurrent.CyclicBarrier.<init>:(I)V
            astore 3 /* enterBarrier */
        start local 3 // java.util.concurrent.CyclicBarrier enterBarrier
         2: .line 925
            new java.util.concurrent.CyclicBarrier
            dup
            iconst_3
            invokespecial java.util.concurrent.CyclicBarrier.<init>:(I)V
            astore 4 /* unwindBarrier */
        start local 4 // java.util.concurrent.CyclicBarrier unwindBarrier
         3: .line 926
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.env:Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
            invokevirtual com.oracle.truffle.api.instrumentation.TruffleInstrument$Env.getInstrumenter:()Lcom/oracle/truffle/api/instrumentation/Instrumenter;
         4: .line 927
            invokestatic com.oracle.truffle.api.instrumentation.SourceSectionFilter.newBuilder:()Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter$Builder;
            iconst_2
            anewarray java.lang.Class
            dup
            iconst_0
            ldc Lcom/oracle/truffle/api/instrumentation/StandardTags$StatementTag;
            aastore
            dup
            iconst_1
            ldc Lcom/oracle/truffle/api/instrumentation/StandardTags$CallTag;
            aastore
            invokevirtual com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder.tagIs:([Ljava/lang/Class;)Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter$Builder;
            invokevirtual com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder.build:()Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter;
         5: .line 928
            new com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$1
            dup
            aload 0 /* this */
            aload 2 /* unwindPtr */
            aload 3 /* enterBarrier */
            aload 1 /* exception */
            aload 4 /* unwindBarrier */
            invokespecial com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$1.<init>:(Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;[Ljava/lang/ThreadDeath;Ljava/util/concurrent/CyclicBarrier;Ljava/util/concurrent/CompletableFuture;Ljava/util/concurrent/CyclicBarrier;)V
         6: .line 926
            invokevirtual com.oracle.truffle.api.instrumentation.Instrumenter.attachExecutionEventListener:(Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter;Lcom/oracle/truffle/api/instrumentation/ExecutionEventListener;)Lcom/oracle/truffle/api/instrumentation/EventBinding;
            putfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.bindingExec:Lcom/oracle/truffle/api/instrumentation/EventBinding;
         7: .line 990
            return
        end local 4 // java.util.concurrent.CyclicBarrier unwindBarrier
        end local 3 // java.util.concurrent.CyclicBarrier enterBarrier
        end local 2 // java.lang.ThreadDeath[] unwindPtr
        end local 1 // java.util.concurrent.CompletableFuture exception
        end local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    8     0           this  Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;
            0    8     1      exception  Ljava/util/concurrent/CompletableFuture<Ljava/lang/Throwable;>;
            1    8     2      unwindPtr  [Ljava/lang/ThreadDeath;
            2    8     3   enterBarrier  Ljava/util/concurrent/CyclicBarrier;
            3    8     4  unwindBarrier  Ljava/util/concurrent/CyclicBarrier;
    Signature: (Ljava/util/concurrent/CompletableFuture<Ljava/lang/Throwable;>;)V
    MethodParameters:
           Name  Flags
      exception  

  void submitConcurrent();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=7, locals=2, args_size=1
        start local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
         0: .line 993
            new java.util.concurrent.CyclicBarrier
            dup
            iconst_3
            invokespecial java.util.concurrent.CyclicBarrier.<init>:(I)V
            astore 1 /* unwindBarrier */
        start local 1 // java.util.concurrent.CyclicBarrier unwindBarrier
         1: .line 994
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.env:Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
            invokevirtual com.oracle.truffle.api.instrumentation.TruffleInstrument$Env.getInstrumenter:()Lcom/oracle/truffle/api/instrumentation/Instrumenter;
         2: .line 995
            invokestatic com.oracle.truffle.api.instrumentation.SourceSectionFilter.newBuilder:()Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter$Builder;
            iconst_2
            anewarray java.lang.Class
            dup
            iconst_0
            ldc Lcom/oracle/truffle/api/instrumentation/StandardTags$StatementTag;
            aastore
            dup
            iconst_1
            ldc Lcom/oracle/truffle/api/instrumentation/StandardTags$CallTag;
            aastore
            invokevirtual com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder.tagIs:([Ljava/lang/Class;)Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter$Builder;
            invokevirtual com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder.build:()Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter;
         3: .line 996
            new com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$2
            dup
            aload 0 /* this */
            aload 1 /* unwindBarrier */
            invokespecial com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$2.<init>:(Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;Ljava/util/concurrent/CyclicBarrier;)V
         4: .line 994
            invokevirtual com.oracle.truffle.api.instrumentation.Instrumenter.attachExecutionEventListener:(Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter;Lcom/oracle/truffle/api/instrumentation/ExecutionEventListener;)Lcom/oracle/truffle/api/instrumentation/EventBinding;
            putfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.bindingExec:Lcom/oracle/truffle/api/instrumentation/EventBinding;
         5: .line 1033
            return
        end local 1 // java.util.concurrent.CyclicBarrier unwindBarrier
        end local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    6     0           this  Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;
            1    6     1  unwindBarrier  Ljava/util/concurrent/CyclicBarrier;

  void submitSequential();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=8, locals=3, args_size=1
        start local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
         0: .line 1036
            iconst_1
            anewarray java.lang.ThreadDeath
            astore 1 /* unwindPtr */
        start local 1 // java.lang.ThreadDeath[] unwindPtr
         1: .line 1037
            new java.util.concurrent.locks.ReentrantLock
            dup
            invokespecial java.util.concurrent.locks.ReentrantLock.<init>:()V
            astore 2 /* lock */
        start local 2 // java.util.concurrent.locks.ReentrantLock lock
         2: .line 1038
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.env:Lcom/oracle/truffle/api/instrumentation/TruffleInstrument$Env;
            invokevirtual com.oracle.truffle.api.instrumentation.TruffleInstrument$Env.getInstrumenter:()Lcom/oracle/truffle/api/instrumentation/Instrumenter;
         3: .line 1039
            invokestatic com.oracle.truffle.api.instrumentation.SourceSectionFilter.newBuilder:()Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter$Builder;
            iconst_2
            anewarray java.lang.Class
            dup
            iconst_0
            ldc Lcom/oracle/truffle/api/instrumentation/StandardTags$StatementTag;
            aastore
            dup
            iconst_1
            ldc Lcom/oracle/truffle/api/instrumentation/StandardTags$CallTag;
            aastore
            invokevirtual com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder.tagIs:([Ljava/lang/Class;)Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter$Builder;
            invokevirtual com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder.build:()Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter;
         4: .line 1040
            new com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$3
            dup
            aload 0 /* this */
            aload 1 /* unwindPtr */
            aload 2 /* lock */
            invokespecial com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$3.<init>:(Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;[Ljava/lang/ThreadDeath;Ljava/util/concurrent/locks/ReentrantLock;)V
         5: .line 1038
            invokevirtual com.oracle.truffle.api.instrumentation.Instrumenter.attachExecutionEventListener:(Lcom/oracle/truffle/api/instrumentation/SourceSectionFilter;Lcom/oracle/truffle/api/instrumentation/ExecutionEventListener;)Lcom/oracle/truffle/api/instrumentation/EventBinding;
            putfield com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel.bindingExec:Lcom/oracle/truffle/api/instrumentation/EventBinding;
         6: .line 1085
            return
        end local 2 // java.util.concurrent.locks.ReentrantLock lock
        end local 1 // java.lang.ThreadDeath[] unwindPtr
        end local 0 // com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    7     0       this  Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;
            1    7     1  unwindPtr  [Ljava/lang/ThreadDeath;
            2    7     2       lock  Ljava/util/concurrent/locks/ReentrantLock;
}
SourceFile: "UnwindReenterReturnTest.java"
NestHost: com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest
InnerClasses:
  public final Builder = com.oracle.truffle.api.instrumentation.SourceSectionFilter$Builder of com.oracle.truffle.api.instrumentation.SourceSectionFilter
  public final CallTag = com.oracle.truffle.api.instrumentation.StandardTags$CallTag of com.oracle.truffle.api.instrumentation.StandardTags
  public final StatementTag = com.oracle.truffle.api.instrumentation.StandardTags$StatementTag of com.oracle.truffle.api.instrumentation.StandardTags
  public final Env = com.oracle.truffle.api.instrumentation.TruffleInstrument$Env of com.oracle.truffle.api.instrumentation.TruffleInstrument
  public abstract Registration = com.oracle.truffle.api.instrumentation.TruffleInstrument$Registration of com.oracle.truffle.api.instrumentation.TruffleInstrument
  public UnwindParallel = com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel of com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest
  com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$1
  com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$2
  com.oracle.truffle.api.instrumentation.test.UnwindReenterReturnTest$UnwindParallel$3
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.instrumentation.TruffleInstrument$Registration(id = "testUnwindParallel", services = {Lcom/oracle/truffle/api/instrumentation/test/UnwindReenterReturnTest$UnwindParallel;})