https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.PolyglotThreadInfo
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.polyglot.PolyglotThreadInfo
  super_class: java.lang.Object
{
  static final com.oracle.truffle.polyglot.PolyglotThreadInfo NULL;
    descriptor: Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  private static final java.lang.Object NULL_CLASS_LOADER;
    descriptor: Ljava/lang/Object;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final com.oracle.truffle.polyglot.PolyglotContextImpl context;
    descriptor: Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.api.utilities.TruffleWeakReference<java.lang.Thread> thread;
    descriptor: Lcom/oracle/truffle/api/utilities/TruffleWeakReference;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Lcom/oracle/truffle/api/utilities/TruffleWeakReference<Ljava/lang/Thread;>;

  private volatile int enteredCount;
    descriptor: I
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  final java.util.LinkedList<com.oracle.truffle.polyglot.PolyglotContextImpl> explicitContextStack;
    descriptor: Ljava/util/LinkedList;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/LinkedList<Lcom/oracle/truffle/polyglot/PolyglotContextImpl;>;

  volatile boolean cancelled;
    descriptor: Z
    flags: (0x0040) ACC_VOLATILE

  private java.lang.Object originalContextClassLoader;
    descriptor: Ljava/lang/Object;
    flags: (0x0002) ACC_PRIVATE

  private com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry prevContextClassLoader;
    descriptor: Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
    flags: (0x0002) ACC_PRIVATE

  private com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry executionStatisticsEntry;
    descriptor: Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
    flags: (0x0002) ACC_PRIVATE

  private volatile java.lang.Object[] contextThreadLocals;
    descriptor: [Ljava/lang/Object;
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 50
            ldc Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
         3: .line 52
            new com.oracle.truffle.polyglot.PolyglotThreadInfo
            dup
            aconst_null
            aconst_null
            invokespecial com.oracle.truffle.polyglot.PolyglotThreadInfo.<init>:(Lcom/oracle/truffle/polyglot/PolyglotContextImpl;Ljava/lang/Thread;)V
            putstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
         4: .line 53
            new java.lang.Object
            dup
            invokespecial java.lang.Object.<init>:()V
            putstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL_CLASS_LOADER:Ljava/lang/Object;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(com.oracle.truffle.polyglot.PolyglotContextImpl, java.lang.Thread);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotContextImpl;Ljava/lang/Thread;)V
    flags: (0x0000) 
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl context
        start local 2 // java.lang.Thread thread
         0: .line 70
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 62
            aload 0 /* this */
            new java.util.LinkedList
            dup
            invokespecial java.util.LinkedList.<init>:()V
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.explicitContextStack:Ljava/util/LinkedList;
         2: .line 64
            aload 0 /* this */
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL_CLASS_LOADER:Ljava/lang/Object;
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
         3: .line 71
            aload 0 /* this */
            aload 1 /* context */
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
         4: .line 72
            aload 0 /* this */
            new com.oracle.truffle.api.utilities.TruffleWeakReference
            dup
            aload 2 /* thread */
            invokespecial com.oracle.truffle.api.utilities.TruffleWeakReference.<init>:(Ljava/lang/Object;)V
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.thread:Lcom/oracle/truffle/api/utilities/TruffleWeakReference;
         5: .line 73
            return
        end local 2 // java.lang.Thread thread
        end local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl context
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    6     0     this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0    6     1  context  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            0    6     2   thread  Ljava/lang/Thread;
    MethodParameters:
         Name  Flags
      context  
      thread   

  java.lang.Thread getThread();
    descriptor: ()Ljava/lang/Thread;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 76
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.thread:Lcom/oracle/truffle/api/utilities/TruffleWeakReference;
            invokevirtual com.oracle.truffle.api.utilities.TruffleWeakReference.get:()Ljava/lang/Object;
            checkcast java.lang.Thread
            areturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  public java.lang.Object[] getContextThreadLocals();
    descriptor: ()[Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 80
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            invokestatic java.lang.Thread.holdsLock:(Ljava/lang/Object;)Z
            ifne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 81
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.contextThreadLocals:[Ljava/lang/Object;
            areturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  public void setContextThreadLocals(java.lang.Object[]);
    descriptor: ([Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // java.lang.Object[] contextThreadLocals
         0: .line 85
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            invokestatic java.lang.Thread.holdsLock:(Ljava/lang/Object;)Z
            ifne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 86
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* contextThreadLocals */
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.contextThreadLocals:[Ljava/lang/Object;
         2: .line 87
            return
        end local 1 // java.lang.Object[] contextThreadLocals
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot                 Name  Signature
            0    3     0                 this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0    3     1  contextThreadLocals  [Ljava/lang/Object;
    MethodParameters:
                     Name  Flags
      contextThreadLocals  

  boolean isCurrent();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 90
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            if_acmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  void enter(com.oracle.truffle.polyglot.PolyglotEngineImpl, com.oracle.truffle.polyglot.PolyglotContextImpl);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;Lcom/oracle/truffle/polyglot/PolyglotContextImpl;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // com.oracle.truffle.polyglot.PolyglotEngineImpl engine
        start local 2 // com.oracle.truffle.polyglot.PolyglotContextImpl profiledContext
         0: .line 98
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 1
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            if_acmpeq 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 99
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            iconst_1
            iadd
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
         2: .line 100
            ldc 1.0E-4
            aload 2 /* profiledContext */
            getfield com.oracle.truffle.polyglot.PolyglotContextImpl.closed:Z
            invokestatic com.oracle.truffle.api.CompilerDirectives.injectBranchProbability:(DZ)Z
            ifeq 7
         3: .line 106
            invokestatic com.oracle.truffle.api.CompilerDirectives.transferToInterpreter:()V
         4: .line 107
            aload 0 /* this */
            dup
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            iconst_1
            isub
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
         5: .line 108
            aload 2 /* profiledContext */
            invokevirtual com.oracle.truffle.polyglot.PolyglotContextImpl.checkClosed:()V
         6: .line 109
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 7
            new java.lang.AssertionError
            dup
            ldc "checkClosed must throw"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         7: .line 111
      StackMap locals:
      StackMap stack:
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.customHostClassLoader:Lcom/oracle/truffle/api/Assumption;
            invokeinterface com.oracle.truffle.api.Assumption.isValid:()Z
            ifne 9
         8: .line 112
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.setContextClassLoader:()V
         9: .line 115
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.polyglot.EngineAccessor.INSTRUMENT:Lcom/oracle/truffle/api/impl/Accessor$InstrumentSupport;
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.instrumentationHandler:Ljava/lang/Object;
            aload 2 /* profiledContext */
            getfield com.oracle.truffle.polyglot.PolyglotContextImpl.creatorTruffleContext:Lcom/oracle/truffle/api/TruffleContext;
            invokevirtual com.oracle.truffle.api.impl.Accessor$InstrumentSupport.notifyEnter:(Ljava/lang/Object;Lcom/oracle/truffle/api/TruffleContext;)V
        10: .line 116
            goto 14
      StackMap locals:
      StackMap stack: java.lang.Throwable
        11: astore 3 /* t */
        start local 3 // java.lang.Throwable t
        12: .line 117
            aload 0 /* this */
            dup
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            iconst_1
            isub
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
        13: .line 118
            aload 3 /* t */
            athrow
        end local 3 // java.lang.Throwable t
        14: .line 120
      StackMap locals:
      StackMap stack:
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.specializationStatistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            ifnull 16
        15: .line 121
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.specializationStatistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            invokevirtual com.oracle.truffle.api.dsl.SpecializationStatistics.enter:()Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            pop
        16: .line 123
      StackMap locals:
      StackMap stack:
            return
        end local 2 // com.oracle.truffle.polyglot.PolyglotContextImpl profiledContext
        end local 1 // com.oracle.truffle.polyglot.PolyglotEngineImpl engine
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0   17     0             this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0   17     1           engine  Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;
            0   17     2  profiledContext  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
           12   14     3                t  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           9    10      11  Class java.lang.Throwable
    RuntimeInvisibleAnnotations: 
      com.oracle.truffle.polyglot.SuppressFBWarnings(value = {"VO_VOLATILE_INCREMENT"})
    MethodParameters:
                 Name  Flags
      engine           
      profiledContext  

  boolean isPolyglotThread(com.oracle.truffle.polyglot.PolyglotContextImpl);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotContextImpl;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl c
         0: .line 126
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            instanceof com.oracle.truffle.polyglot.PolyglotThread
            ifeq 2
         1: .line 127
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            checkcast com.oracle.truffle.polyglot.PolyglotThread
            aload 1 /* c */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThread.isOwner:(Lcom/oracle/truffle/polyglot/PolyglotContextImpl;)Z
            ireturn
         2: .line 129
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        end local 1 // com.oracle.truffle.polyglot.PolyglotContextImpl c
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0    3     1     c  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
    MethodParameters:
      Name  Flags
      c     

  void leave(com.oracle.truffle.polyglot.PolyglotEngineImpl, com.oracle.truffle.polyglot.PolyglotContextImpl);
    descriptor: (Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;Lcom/oracle/truffle/polyglot/PolyglotContextImpl;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // com.oracle.truffle.polyglot.PolyglotEngineImpl engine
        start local 2 // com.oracle.truffle.polyglot.PolyglotContextImpl profiledContext
         0: .line 137
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 1
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            if_acmpeq 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 142
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.polyglot.EngineAccessor.INSTRUMENT:Lcom/oracle/truffle/api/impl/Accessor$InstrumentSupport;
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.instrumentationHandler:Ljava/lang/Object;
            aload 2 /* profiledContext */
            getfield com.oracle.truffle.polyglot.PolyglotContextImpl.creatorTruffleContext:Lcom/oracle/truffle/api/TruffleContext;
            invokevirtual com.oracle.truffle.api.impl.Accessor$InstrumentSupport.notifyLeave:(Ljava/lang/Object;Lcom/oracle/truffle/api/TruffleContext;)V
         2: .line 143
            goto 10
      StackMap locals:
      StackMap stack: java.lang.Throwable
         3: astore 3
         4: .line 144
            aload 0 /* this */
            dup
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            iconst_1
            isub
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
         5: .line 145
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.customHostClassLoader:Lcom/oracle/truffle/api/Assumption;
            invokeinterface com.oracle.truffle.api.Assumption.isValid:()Z
            ifne 7
         6: .line 146
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.restoreContextClassLoader:()V
         7: .line 148
      StackMap locals: java.lang.Throwable
      StackMap stack:
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.specializationStatistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            ifnull 9
         8: .line 149
            aload 0 /* this */
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.specializationStatistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.leaveStatistics:(Lcom/oracle/truffle/api/dsl/SpecializationStatistics;)V
         9: .line 151
      StackMap locals:
      StackMap stack:
            aload 3
            athrow
        10: .line 144
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            iconst_1
            isub
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
        11: .line 145
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.customHostClassLoader:Lcom/oracle/truffle/api/Assumption;
            invokeinterface com.oracle.truffle.api.Assumption.isValid:()Z
            ifne 13
        12: .line 146
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.restoreContextClassLoader:()V
        13: .line 148
      StackMap locals:
      StackMap stack:
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.specializationStatistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            ifnull 15
        14: .line 149
            aload 0 /* this */
            aload 1 /* engine */
            getfield com.oracle.truffle.polyglot.PolyglotEngineImpl.specializationStatistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.leaveStatistics:(Lcom/oracle/truffle/api/dsl/SpecializationStatistics;)V
        15: .line 153
      StackMap locals:
      StackMap stack:
            return
        end local 2 // com.oracle.truffle.polyglot.PolyglotContextImpl profiledContext
        end local 1 // com.oracle.truffle.polyglot.PolyglotEngineImpl engine
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0   16     0             this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0   16     1           engine  Lcom/oracle/truffle/polyglot/PolyglotEngineImpl;
            0   16     2  profiledContext  Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
      Exception table:
        from    to  target  type
           1     3       3  any
    RuntimeInvisibleAnnotations: 
      com.oracle.truffle.polyglot.SuppressFBWarnings(value = {"VO_VOLATILE_INCREMENT"})
    MethodParameters:
                 Name  Flags
      engine           
      profiledContext  

  private void enterStatistics(com.oracle.truffle.api.dsl.SpecializationStatistics);
    descriptor: (Lcom/oracle/truffle/api/dsl/SpecializationStatistics;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // com.oracle.truffle.api.dsl.SpecializationStatistics statistics
         0: .line 157
            aload 1 /* statistics */
            invokevirtual com.oracle.truffle.api.dsl.SpecializationStatistics.enter:()Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            astore 2 /* prev */
        start local 2 // com.oracle.truffle.api.dsl.SpecializationStatistics prev
         1: .line 158
            aload 2 /* prev */
            ifnonnull 2
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.executionStatisticsEntry:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
            ifnull 3
         2: .line 159
      StackMap locals: com.oracle.truffle.api.dsl.SpecializationStatistics
      StackMap stack:
            aload 0 /* this */
            new com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry
            dup
            aload 2 /* prev */
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.executionStatisticsEntry:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
            invokespecial com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry.<init>:(Lcom/oracle/truffle/api/dsl/SpecializationStatistics;Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;)V
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.executionStatisticsEntry:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
         3: .line 161
      StackMap locals:
      StackMap stack:
            return
        end local 2 // com.oracle.truffle.api.dsl.SpecializationStatistics prev
        end local 1 // com.oracle.truffle.api.dsl.SpecializationStatistics statistics
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0    4     1  statistics  Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            1    4     2        prev  Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
            Name  Flags
      statistics  

  private void leaveStatistics(com.oracle.truffle.api.dsl.SpecializationStatistics);
    descriptor: (Lcom/oracle/truffle/api/dsl/SpecializationStatistics;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
        start local 1 // com.oracle.truffle.api.dsl.SpecializationStatistics statistics
         0: .line 165
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.executionStatisticsEntry:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
            astore 2 /* entry */
        start local 2 // com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry entry
         1: .line 166
            aload 2 /* entry */
            ifnonnull 4
         2: .line 167
            aload 1 /* statistics */
            aconst_null
            invokevirtual com.oracle.truffle.api.dsl.SpecializationStatistics.leave:(Lcom/oracle/truffle/api/dsl/SpecializationStatistics;)V
         3: .line 168
            goto 6
         4: .line 169
      StackMap locals: com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry
      StackMap stack:
            aload 1 /* statistics */
            aload 2 /* entry */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry.statistics:Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            invokevirtual com.oracle.truffle.api.dsl.SpecializationStatistics.leave:(Lcom/oracle/truffle/api/dsl/SpecializationStatistics;)V
         5: .line 170
            aload 0 /* this */
            aload 2 /* entry */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry.next:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.executionStatisticsEntry:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
         6: .line 172
      StackMap locals:
      StackMap stack:
            return
        end local 2 // com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry entry
        end local 1 // com.oracle.truffle.api.dsl.SpecializationStatistics statistics
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    7     0        this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            0    7     1  statistics  Lcom/oracle/truffle/api/dsl/SpecializationStatistics;
            1    7     2       entry  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$SpecializationStatisticsEntry;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
            Name  Flags
      statistics  

  boolean isLastActive();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 175
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            ifnull 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            iconst_1
            if_icmpne 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.cancelled:Z
            ifne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  boolean isActiveNotCancelled();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 179
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            ifnull 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            ifle 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.cancelled:Z
            ifne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  boolean isActive();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 183
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            ifnull 1
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            ifle 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 188
            new java.lang.StringBuilder
            dup
            aload 0 /* this */
            invokespecial java.lang.Object.toString:()Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc "[thread="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc ", enteredCount="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.enteredCount:I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ", cancelled="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.cancelled:Z
            invokevirtual java.lang.StringBuilder.append:(Z)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;

  private void setContextClassLoader();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=4, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 193
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            getfield com.oracle.truffle.polyglot.PolyglotContextImpl.config:Lcom/oracle/truffle/polyglot/PolyglotContextConfig;
            getfield com.oracle.truffle.polyglot.PolyglotContextConfig.hostClassLoader:Ljava/lang/ClassLoader;
            astore 1 /* hostClassLoader */
        start local 1 // java.lang.ClassLoader hostClassLoader
         1: .line 194
            aload 1 /* hostClassLoader */
            ifnull 9
         2: .line 195
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            astore 2 /* t */
        start local 2 // java.lang.Thread t
         3: .line 196
            aload 2 /* t */
            invokevirtual java.lang.Thread.getContextClassLoader:()Ljava/lang/ClassLoader;
            astore 3 /* original */
        start local 3 // java.lang.ClassLoader original
         4: .line 197
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 5
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL_CLASS_LOADER:Ljava/lang/Object;
            if_acmpne 5
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
            ifnull 5
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         5: .line 198
      StackMap locals: java.lang.ClassLoader java.lang.Thread java.lang.ClassLoader
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL_CLASS_LOADER:Ljava/lang/Object;
            if_acmpeq 7
         6: .line 199
            aload 0 /* this */
            new com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry
            dup
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
            checkcast java.lang.ClassLoader
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
            invokespecial com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry.<init>:(Ljava/lang/ClassLoader;Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;)V
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
         7: .line 201
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 3 /* original */
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
         8: .line 202
            aload 2 /* t */
            aload 1 /* hostClassLoader */
            invokevirtual java.lang.Thread.setContextClassLoader:(Ljava/lang/ClassLoader;)V
        end local 3 // java.lang.ClassLoader original
        end local 2 // java.lang.Thread t
         9: .line 204
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.lang.ClassLoader hostClassLoader
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0   10     0             this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            1   10     1  hostClassLoader  Ljava/lang/ClassLoader;
            3    9     2                t  Ljava/lang/Thread;
            4    9     3         original  Ljava/lang/ClassLoader;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()

  private void restoreContextClassLoader();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
         0: .line 208
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL_CLASS_LOADER:Ljava/lang/Object;
            if_acmpeq 9
         1: .line 209
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.$assertionsDisabled:Z
            ifne 2
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.context:Lcom/oracle/truffle/polyglot/PolyglotContextImpl;
            getfield com.oracle.truffle.polyglot.PolyglotContextImpl.config:Lcom/oracle/truffle/polyglot/PolyglotContextConfig;
            getfield com.oracle.truffle.polyglot.PolyglotContextConfig.hostClassLoader:Ljava/lang/ClassLoader;
            ifnonnull 2
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         2: .line 210
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual com.oracle.truffle.polyglot.PolyglotThreadInfo.getThread:()Ljava/lang/Thread;
            astore 1 /* t */
        start local 1 // java.lang.Thread t
         3: .line 211
            aload 1 /* t */
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
            checkcast java.lang.ClassLoader
            invokevirtual java.lang.Thread.setContextClassLoader:(Ljava/lang/ClassLoader;)V
         4: .line 212
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
            ifnull 8
         5: .line 213
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry.classLoader:Ljava/lang/ClassLoader;
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
         6: .line 214
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
            getfield com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry.next:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.prevContextClassLoader:Lcom/oracle/truffle/polyglot/PolyglotThreadInfo$ClassLoaderEntry;
         7: .line 215
            goto 9
         8: .line 216
      StackMap locals: java.lang.Thread
      StackMap stack:
            aload 0 /* this */
            getstatic com.oracle.truffle.polyglot.PolyglotThreadInfo.NULL_CLASS_LOADER:Ljava/lang/Object;
            putfield com.oracle.truffle.polyglot.PolyglotThreadInfo.originalContextClassLoader:Ljava/lang/Object;
        end local 1 // java.lang.Thread t
         9: .line 219
      StackMap locals:
      StackMap stack:
            return
        end local 0 // com.oracle.truffle.polyglot.PolyglotThreadInfo this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lcom/oracle/truffle/polyglot/PolyglotThreadInfo;
            3    9     1     t  Ljava/lang/Thread;
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
}
SourceFile: "PolyglotThreadInfo.java"
NestMembers:
  com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry  com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  public abstract InstrumentSupport = com.oracle.truffle.api.impl.Accessor$InstrumentSupport of com.oracle.truffle.api.impl.Accessor
  private final ClassLoaderEntry = com.oracle.truffle.polyglot.PolyglotThreadInfo$ClassLoaderEntry of com.oracle.truffle.polyglot.PolyglotThreadInfo
  private final SpecializationStatisticsEntry = com.oracle.truffle.polyglot.PolyglotThreadInfo$SpecializationStatisticsEntry of com.oracle.truffle.polyglot.PolyglotThreadInfo