public class java.util.concurrent.Exchanger<V>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: java.util.concurrent.Exchanger
  super_class: java.lang.Object
{
  private static final int ASHIFT;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 5

  private static final int MMASK;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 255

  private static final int SEQ;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 256

  private static final int NCPU;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static final int FULL;
    descriptor: I
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  private static final int SPINS;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1024

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

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

  private final java.util.concurrent.Exchanger$Participant participant;
    descriptor: Ljava/util/concurrent/Exchanger$Participant;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private volatile java.util.concurrent.Exchanger$Node[] arena;
    descriptor: [Ljava/util/concurrent/Exchanger$Node;
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  private volatile java.util.concurrent.Exchanger$Node slot;
    descriptor: Ljava/util/concurrent/Exchanger$Node;
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

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

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

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

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

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

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=1, args_size=0
         0: .line 271
            invokestatic java.lang.Runtime.getRuntime:()Ljava/lang/Runtime;
            invokevirtual java.lang.Runtime.availableProcessors:()I
            putstatic java.util.concurrent.Exchanger.NCPU:I
         1: .line 278
            getstatic java.util.concurrent.Exchanger.NCPU:I
            sipush 510
            if_icmplt 2
            sipush 255
            goto 3
      StackMap locals:
      StackMap stack:
         2: getstatic java.util.concurrent.Exchanger.NCPU:I
            iconst_1
            iushr
      StackMap locals:
      StackMap stack: int
         3: putstatic java.util.concurrent.Exchanger.FULL:I
         4: .line 292
            new java.lang.Object
            dup
            invokespecial java.lang.Object.<init>:()V
            putstatic java.util.concurrent.Exchanger.NULL_ITEM:Ljava/lang/Object;
         5: .line 299
            new java.lang.Object
            dup
            invokespecial java.lang.Object.<init>:()V
            putstatic java.util.concurrent.Exchanger.TIMED_OUT:Ljava/lang/Object;
         6: .line 638
            invokestatic java.lang.invoke.MethodHandles.lookup:()Ljava/lang/invoke/MethodHandles$Lookup;
            astore 0 /* l */
        start local 0 // java.lang.invoke.MethodHandles$Lookup l
         7: .line 639
            aload 0 /* l */
            ldc Ljava/util/concurrent/Exchanger;
            ldc "bound"
            getstatic java.lang.Integer.TYPE:Ljava/lang/Class;
            invokevirtual java.lang.invoke.MethodHandles$Lookup.findVarHandle:(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/Class;)Ljava/lang/invoke/VarHandle;
            putstatic java.util.concurrent.Exchanger.BOUND:Ljava/lang/invoke/VarHandle;
         8: .line 640
            aload 0 /* l */
            ldc Ljava/util/concurrent/Exchanger;
            ldc "slot"
            ldc Ljava/util/concurrent/Exchanger$Node;
            invokevirtual java.lang.invoke.MethodHandles$Lookup.findVarHandle:(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/Class;)Ljava/lang/invoke/VarHandle;
            putstatic java.util.concurrent.Exchanger.SLOT:Ljava/lang/invoke/VarHandle;
         9: .line 641
            aload 0 /* l */
            ldc Ljava/util/concurrent/Exchanger$Node;
            ldc "match"
            ldc Ljava/lang/Object;
            invokevirtual java.lang.invoke.MethodHandles$Lookup.findVarHandle:(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/Class;)Ljava/lang/invoke/VarHandle;
            putstatic java.util.concurrent.Exchanger.MATCH:Ljava/lang/invoke/VarHandle;
        10: .line 642
            ldc [Ljava/util/concurrent/Exchanger$Node;
            invokestatic java.lang.invoke.MethodHandles.arrayElementVarHandle:(Ljava/lang/Class;)Ljava/lang/invoke/VarHandle;
            putstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
        end local 0 // java.lang.invoke.MethodHandles$Lookup l
        11: .line 643
            goto 14
      StackMap locals:
      StackMap stack: java.lang.ReflectiveOperationException
        12: astore 0 /* e */
        start local 0 // java.lang.ReflectiveOperationException e
        13: .line 644
            new java.lang.ExceptionInInitializerError
            dup
            aload 0 /* e */
            invokespecial java.lang.ExceptionInInitializerError.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 0 // java.lang.ReflectiveOperationException e
        14: .line 646
      StackMap locals:
      StackMap stack:
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            7   11     0     l  Ljava/lang/invoke/MethodHandles$Lookup;
           13   14     0     e  Ljava/lang/ReflectiveOperationException;
      Exception table:
        from    to  target  type
           6    11      12  Class java.lang.ReflectiveOperationException

  private final java.lang.Object arenaExchange(java.lang.Object, boolean, long);
    descriptor: (Ljava/lang/Object;ZJ)Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Code:
      stack=5, locals=20, args_size=4
        start local 0 // java.util.concurrent.Exchanger this
        start local 1 // java.lang.Object item
        start local 2 // boolean timed
        start local 3 // long ns
         0: .line 354
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.arena:[Ljava/util/concurrent/Exchanger$Node;
            astore 5 /* a */
        start local 5 // java.util.concurrent.Exchanger$Node[] a
         1: .line 355
            aload 5 /* a */
            arraylength
            istore 6 /* alen */
        start local 6 // int alen
         2: .line 356
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.participant:Ljava/util/concurrent/Exchanger$Participant;
            invokevirtual java.util.concurrent.Exchanger$Participant.get:()Ljava/lang/Object;
            checkcast java.util.concurrent.Exchanger$Node
            astore 7 /* p */
        start local 7 // java.util.concurrent.Exchanger$Node p
         3: .line 357
            aload 7 /* p */
            getfield java.util.concurrent.Exchanger$Node.index:I
            istore 8 /* i */
        start local 8 // int i
         4: .line 359
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int
      StackMap stack:
            iload 8 /* i */
            iconst_5
            ishl
            bipush 31
            iadd
            istore 12 /* j */
        start local 12 // int j
         5: .line 360
            iload 12 /* j */
            iflt 6
            iload 12 /* j */
            iload 6 /* alen */
            if_icmplt 7
         6: .line 361
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int top top top int
      StackMap stack:
            iload 6 /* alen */
            iconst_1
            isub
            istore 12 /* j */
         7: .line 362
      StackMap locals:
      StackMap stack:
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            invokevirtual java.lang.invoke.VarHandle.getAcquire:([Ljava/util/concurrent/Exchanger$Node;I)Ljava/util/concurrent/Exchanger$Node;
            astore 13 /* q */
        start local 13 // java.util.concurrent.Exchanger$Node q
         8: .line 363
            aload 13 /* q */
            ifnull 15
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            aload 13 /* q */
            aconst_null
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:([Ljava/util/concurrent/Exchanger$Node;ILjava/util/concurrent/Exchanger$Node;Ljava/lang/Void;)Z
            ifeq 15
         9: .line 364
            aload 13 /* q */
            getfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
            astore 14 /* v */
        start local 14 // java.lang.Object v
        10: .line 365
            aload 13 /* q */
            aload 1 /* item */
            putfield java.util.concurrent.Exchanger$Node.match:Ljava/lang/Object;
        11: .line 366
            aload 13 /* q */
            getfield java.util.concurrent.Exchanger$Node.parked:Ljava/lang/Thread;
            astore 15 /* w */
        start local 15 // java.lang.Thread w
        12: .line 367
            aload 15 /* w */
            ifnull 14
        13: .line 368
            aload 15 /* w */
            invokestatic java.util.concurrent.locks.LockSupport.unpark:(Ljava/lang/Thread;)V
        14: .line 369
      StackMap locals: java.util.concurrent.Exchanger$Node java.lang.Object java.lang.Thread
      StackMap stack:
            aload 14 /* v */
            areturn
        end local 15 // java.lang.Thread w
        end local 14 // java.lang.Object v
        15: .line 371
      StackMap locals:
      StackMap stack:
            iload 8 /* i */
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.bound:I
            dup
            istore 9 /* b */
        start local 9 // int b
        16: sipush 255
            iand
            dup
            istore 10 /* m */
        start local 10 // int m
        17: if_icmpgt 65
            aload 13 /* q */
            ifnonnull 65
        18: .line 372
            aload 7 /* p */
            aload 1 /* item */
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        19: .line 373
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            aconst_null
            aload 7 /* p */
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:([Ljava/util/concurrent/Exchanger$Node;ILjava/lang/Void;Ljava/util/concurrent/Exchanger$Node;)Z
            ifeq 63
        20: .line 374
            iload 2 /* timed */
            ifeq 21
            iload 10 /* m */
            ifne 21
            invokestatic java.lang.System.nanoTime:()J
            lload 3 /* ns */
            ladd
            goto 22
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int int int top int java.util.concurrent.Exchanger$Node
      StackMap stack:
        21: lconst_0
      StackMap locals:
      StackMap stack: long
        22: lstore 14 /* end */
        start local 14 // long end
        23: .line 375
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            astore 16 /* t */
        start local 16 // java.lang.Thread t
        24: .line 376
            aload 7 /* p */
            getfield java.util.concurrent.Exchanger$Node.hash:I
            istore 17 /* h */
        start local 17 // int h
        25: sipush 1024
            istore 18 /* spins */
        start local 18 // int spins
        26: .line 377
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int int int top int java.util.concurrent.Exchanger$Node long java.lang.Thread int int
      StackMap stack:
            aload 7 /* p */
            getfield java.util.concurrent.Exchanger$Node.match:Ljava/lang/Object;
            astore 19 /* v */
        start local 19 // java.lang.Object v
        27: .line 378
            aload 19 /* v */
            ifnull 32
        28: .line 379
            getstatic java.util.concurrent.Exchanger.MATCH:Ljava/lang/invoke/VarHandle;
            aload 7 /* p */
            aconst_null
            invokevirtual java.lang.invoke.VarHandle.setRelease:(Ljava/util/concurrent/Exchanger$Node;Ljava/lang/Void;)V
        29: .line 380
            aload 7 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        30: .line 381
            aload 7 /* p */
            iload 17 /* h */
            putfield java.util.concurrent.Exchanger$Node.hash:I
        31: .line 382
            aload 19 /* v */
            areturn
        32: .line 384
      StackMap locals: java.lang.Object
      StackMap stack:
            iload 18 /* spins */
            ifle 40
        33: .line 385
            iload 17 /* h */
            iload 17 /* h */
            iconst_1
            ishl
            ixor
            istore 17 /* h */
            iload 17 /* h */
            iload 17 /* h */
            iconst_3
            iushr
            ixor
            istore 17 /* h */
            iload 17 /* h */
            iload 17 /* h */
            bipush 10
            ishl
            ixor
            istore 17 /* h */
        34: .line 386
            iload 17 /* h */
            ifne 36
        35: .line 387
            sipush 1024
            aload 16 /* t */
            invokevirtual java.lang.Thread.getId:()J
            l2i
            ior
            istore 17 /* h */
            goto 26
        36: .line 388
      StackMap locals:
      StackMap stack:
            iload 17 /* h */
            ifge 26
        37: .line 389
            iinc 18 /* spins */ -1
            iload 18 /* spins */
            sipush 511
            iand
            ifne 26
        38: .line 390
            invokestatic java.lang.Thread.yield:()V
        39: .line 391
            goto 26
        40: .line 392
      StackMap locals:
      StackMap stack:
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            invokevirtual java.lang.invoke.VarHandle.getAcquire:([Ljava/util/concurrent/Exchanger$Node;I)Ljava/lang/Object;
            aload 7 /* p */
            if_acmpeq 42
        41: .line 393
            sipush 1024
            istore 18 /* spins */
            goto 26
        42: .line 394
      StackMap locals:
      StackMap stack:
            aload 16 /* t */
            invokevirtual java.lang.Thread.isInterrupted:()Z
            ifne 52
            iload 10 /* m */
            ifne 52
        43: .line 395
            iload 2 /* timed */
            ifeq 45
        44: .line 396
            lload 14 /* end */
            invokestatic java.lang.System.nanoTime:()J
            lsub
            dup2
            lstore 3 /* ns */
            lconst_0
            lcmp
            ifle 52
        45: .line 397
      StackMap locals:
      StackMap stack:
            aload 7 /* p */
            aload 16 /* t */
            putfield java.util.concurrent.Exchanger$Node.parked:Ljava/lang/Thread;
        46: .line 398
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            invokevirtual java.lang.invoke.VarHandle.getAcquire:([Ljava/util/concurrent/Exchanger$Node;I)Ljava/lang/Object;
            aload 7 /* p */
            if_acmpne 50
        47: .line 399
            lload 3 /* ns */
            lconst_0
            lcmp
            ifne 49
        48: .line 400
            aload 0 /* this */
            invokestatic java.util.concurrent.locks.LockSupport.park:(Ljava/lang/Object;)V
            goto 50
        49: .line 402
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            lload 3 /* ns */
            invokestatic java.util.concurrent.locks.LockSupport.parkNanos:(Ljava/lang/Object;J)V
        50: .line 404
      StackMap locals:
      StackMap stack:
            aload 7 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.parked:Ljava/lang/Thread;
        51: .line 405
            goto 26
        52: .line 406
      StackMap locals:
      StackMap stack:
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            invokevirtual java.lang.invoke.VarHandle.getAcquire:([Ljava/util/concurrent/Exchanger$Node;I)Ljava/lang/Object;
            aload 7 /* p */
            if_acmpne 26
        53: .line 407
            getstatic java.util.concurrent.Exchanger.AA:Ljava/lang/invoke/VarHandle;
            aload 5 /* a */
            iload 12 /* j */
            aload 7 /* p */
            aconst_null
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:([Ljava/util/concurrent/Exchanger$Node;ILjava/util/concurrent/Exchanger$Node;Ljava/lang/Void;)Z
            ifeq 26
        54: .line 408
            iload 10 /* m */
            ifeq 56
        55: .line 409
            getstatic java.util.concurrent.Exchanger.BOUND:Ljava/lang/invoke/VarHandle;
            aload 0 /* this */
            iload 9 /* b */
            iload 9 /* b */
            sipush 256
            iadd
            iconst_1
            isub
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:(Ljava/util/concurrent/Exchanger;II)V
        56: .line 410
      StackMap locals:
      StackMap stack:
            aload 7 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        57: .line 411
            aload 7 /* p */
            iload 17 /* h */
            putfield java.util.concurrent.Exchanger$Node.hash:I
        58: .line 412
            aload 7 /* p */
            dup
            getfield java.util.concurrent.Exchanger$Node.index:I
            iconst_1
            iushr
            dup_x1
            putfield java.util.concurrent.Exchanger$Node.index:I
            istore 8 /* i */
        59: .line 413
            invokestatic java.lang.Thread.interrupted:()Z
            ifeq 61
        60: .line 414
            aconst_null
            areturn
        61: .line 415
      StackMap locals:
      StackMap stack:
            iload 2 /* timed */
            ifeq 4
            iload 10 /* m */
            ifne 4
            lload 3 /* ns */
            lconst_0
            lcmp
            ifgt 4
        62: .line 416
            getstatic java.util.concurrent.Exchanger.TIMED_OUT:Ljava/lang/Object;
            areturn
        end local 19 // java.lang.Object v
        end local 18 // int spins
        end local 17 // int h
        end local 16 // java.lang.Thread t
        end local 14 // long end
        63: .line 422
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int int int top int java.util.concurrent.Exchanger$Node
      StackMap stack:
            aload 7 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        64: .line 423
            goto 4
        65: .line 425
      StackMap locals:
      StackMap stack:
            aload 7 /* p */
            getfield java.util.concurrent.Exchanger$Node.bound:I
            iload 9 /* b */
            if_icmpeq 73
        66: .line 426
            aload 7 /* p */
            iload 9 /* b */
            putfield java.util.concurrent.Exchanger$Node.bound:I
        67: .line 427
            aload 7 /* p */
            iconst_0
            putfield java.util.concurrent.Exchanger$Node.collides:I
        68: .line 428
            iload 8 /* i */
            iload 10 /* m */
            if_icmpne 69
            iload 10 /* m */
            ifne 70
      StackMap locals:
      StackMap stack:
        69: iload 10 /* m */
            goto 71
      StackMap locals:
      StackMap stack:
        70: iload 10 /* m */
            iconst_1
            isub
      StackMap locals:
      StackMap stack: int
        71: istore 8 /* i */
        72: .line 429
            goto 82
        73: .line 430
      StackMap locals:
      StackMap stack:
            aload 7 /* p */
            getfield java.util.concurrent.Exchanger$Node.collides:I
            dup
            istore 11 /* c */
        start local 11 // int c
        74: iload 10 /* m */
            if_icmplt 76
            iload 10 /* m */
            getstatic java.util.concurrent.Exchanger.FULL:I
            if_icmpeq 76
        75: .line 431
            getstatic java.util.concurrent.Exchanger.BOUND:Ljava/lang/invoke/VarHandle;
            aload 0 /* this */
            iload 9 /* b */
            iload 9 /* b */
            sipush 256
            iadd
            iconst_1
            iadd
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:(Ljava/util/concurrent/Exchanger;II)Z
            ifne 81
        76: .line 432
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int int int int int java.util.concurrent.Exchanger$Node
      StackMap stack:
            aload 7 /* p */
            iload 11 /* c */
            iconst_1
            iadd
            putfield java.util.concurrent.Exchanger$Node.collides:I
        77: .line 433
            iload 8 /* i */
            ifne 78
            iload 10 /* m */
            goto 79
      StackMap locals:
      StackMap stack:
        78: iload 8 /* i */
            iconst_1
            isub
      StackMap locals:
      StackMap stack: int
        79: istore 8 /* i */
        80: .line 434
            goto 82
        81: .line 436
      StackMap locals:
      StackMap stack:
            iload 10 /* m */
            iconst_1
            iadd
            istore 8 /* i */
        end local 11 // int c
        82: .line 437
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object int long java.util.concurrent.Exchanger$Node[] int java.util.concurrent.Exchanger$Node int int int top int java.util.concurrent.Exchanger$Node
      StackMap stack:
            aload 7 /* p */
            iload 8 /* i */
            putfield java.util.concurrent.Exchanger$Node.index:I
        end local 13 // java.util.concurrent.Exchanger$Node q
        end local 12 // int j
        end local 10 // int m
        end local 9 // int b
        83: .line 357
            goto 4
        end local 8 // int i
        end local 7 // java.util.concurrent.Exchanger$Node p
        end local 6 // int alen
        end local 5 // java.util.concurrent.Exchanger$Node[] a
        end local 3 // long ns
        end local 2 // boolean timed
        end local 1 // java.lang.Object item
        end local 0 // java.util.concurrent.Exchanger this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   84     0   this  Ljava/util/concurrent/Exchanger<TV;>;
            0   84     1   item  Ljava/lang/Object;
            0   84     2  timed  Z
            0   84     3     ns  J
            1   84     5      a  [Ljava/util/concurrent/Exchanger$Node;
            2   84     6   alen  I
            3   84     7      p  Ljava/util/concurrent/Exchanger$Node;
            4   84     8      i  I
           16   83     9      b  I
           17   83    10      m  I
           74   82    11      c  I
            5   83    12      j  I
            8   83    13      q  Ljava/util/concurrent/Exchanger$Node;
           10   15    14      v  Ljava/lang/Object;
           12   15    15      w  Ljava/lang/Thread;
           23   63    14    end  J
           24   63    16      t  Ljava/lang/Thread;
           25   63    17      h  I
           26   63    18  spins  I
           27   63    19      v  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      item   
      timed  
      ns     

  private final java.lang.Object slotExchange(java.lang.Object, boolean, long);
    descriptor: (Ljava/lang/Object;ZJ)Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Code:
      stack=4, locals=12, args_size=4
        start local 0 // java.util.concurrent.Exchanger this
        start local 1 // java.lang.Object item
        start local 2 // boolean timed
        start local 3 // long ns
         0: .line 453
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.participant:Ljava/util/concurrent/Exchanger$Participant;
            invokevirtual java.util.concurrent.Exchanger$Participant.get:()Ljava/lang/Object;
            checkcast java.util.concurrent.Exchanger$Node
            astore 5 /* p */
        start local 5 // java.util.concurrent.Exchanger$Node p
         1: .line 454
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            astore 6 /* t */
        start local 6 // java.lang.Thread t
         2: .line 455
            aload 6 /* t */
            invokevirtual java.lang.Thread.isInterrupted:()Z
            ifeq 4
         3: .line 456
            aconst_null
            areturn
         4: .line 459
      StackMap locals: java.util.concurrent.Exchanger$Node java.lang.Thread
      StackMap stack:
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.slot:Ljava/util/concurrent/Exchanger$Node;
            dup
            astore 7 /* q */
        start local 7 // java.util.concurrent.Exchanger$Node q
         5: ifnull 17
         6: .line 460
            getstatic java.util.concurrent.Exchanger.SLOT:Ljava/lang/invoke/VarHandle;
            aload 0 /* this */
            aload 7 /* q */
            aconst_null
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:(Ljava/util/concurrent/Exchanger;Ljava/util/concurrent/Exchanger$Node;Ljava/lang/Void;)Z
            ifeq 13
         7: .line 461
            aload 7 /* q */
            getfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
            astore 8 /* v */
        start local 8 // java.lang.Object v
         8: .line 462
            aload 7 /* q */
            aload 1 /* item */
            putfield java.util.concurrent.Exchanger$Node.match:Ljava/lang/Object;
         9: .line 463
            aload 7 /* q */
            getfield java.util.concurrent.Exchanger$Node.parked:Ljava/lang/Thread;
            astore 9 /* w */
        start local 9 // java.lang.Thread w
        10: .line 464
            aload 9 /* w */
            ifnull 12
        11: .line 465
            aload 9 /* w */
            invokestatic java.util.concurrent.locks.LockSupport.unpark:(Ljava/lang/Thread;)V
        12: .line 466
      StackMap locals: java.util.concurrent.Exchanger$Node java.lang.Object java.lang.Thread
      StackMap stack:
            aload 8 /* v */
            areturn
        end local 9 // java.lang.Thread w
        end local 8 // java.lang.Object v
        13: .line 469
      StackMap locals:
      StackMap stack:
            getstatic java.util.concurrent.Exchanger.NCPU:I
            iconst_1
            if_icmple 4
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.bound:I
            ifne 4
        14: .line 470
            getstatic java.util.concurrent.Exchanger.BOUND:Ljava/lang/invoke/VarHandle;
            aload 0 /* this */
            iconst_0
            sipush 256
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:(Ljava/util/concurrent/Exchanger;II)Z
            ifeq 4
        15: .line 471
            aload 0 /* this */
            getstatic java.util.concurrent.Exchanger.FULL:I
            iconst_2
            iadd
            iconst_5
            ishl
            anewarray java.util.concurrent.Exchanger$Node
            putfield java.util.concurrent.Exchanger.arena:[Ljava/util/concurrent/Exchanger$Node;
        16: .line 472
            goto 4
        17: .line 473
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.arena:[Ljava/util/concurrent/Exchanger$Node;
            ifnull 19
        18: .line 474
            aconst_null
            areturn
        19: .line 476
      StackMap locals:
      StackMap stack:
            aload 5 /* p */
            aload 1 /* item */
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        20: .line 477
            getstatic java.util.concurrent.Exchanger.SLOT:Ljava/lang/invoke/VarHandle;
            aload 0 /* this */
            aconst_null
            aload 5 /* p */
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:(Ljava/util/concurrent/Exchanger;Ljava/lang/Void;Ljava/util/concurrent/Exchanger$Node;)Z
            ifeq 22
        21: .line 478
            goto 24
        22: .line 479
      StackMap locals:
      StackMap stack:
            aload 5 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        end local 7 // java.util.concurrent.Exchanger$Node q
        23: .line 458
            goto 4
        24: .line 484
      StackMap locals:
      StackMap stack:
            aload 5 /* p */
            getfield java.util.concurrent.Exchanger$Node.hash:I
            istore 7 /* h */
        start local 7 // int h
        25: .line 485
            iload 2 /* timed */
            ifeq 26
            invokestatic java.lang.System.nanoTime:()J
            lload 3 /* ns */
            ladd
            goto 27
      StackMap locals: int
      StackMap stack:
        26: lconst_0
      StackMap locals:
      StackMap stack: long
        27: lstore 8 /* end */
        start local 8 // long end
        28: .line 486
            getstatic java.util.concurrent.Exchanger.NCPU:I
            iconst_1
            if_icmple 29
            sipush 1024
            goto 30
      StackMap locals: long
      StackMap stack:
        29: iconst_1
      StackMap locals:
      StackMap stack: int
        30: istore 10 /* spins */
        start local 10 // int spins
        31: .line 488
            goto 55
        start local 11 // java.lang.Object v
        32: .line 489
      StackMap locals: int java.lang.Object
      StackMap stack:
            iload 10 /* spins */
            ifle 39
        33: .line 490
            iload 7 /* h */
            iload 7 /* h */
            iconst_1
            ishl
            ixor
            istore 7 /* h */
            iload 7 /* h */
            iload 7 /* h */
            iconst_3
            iushr
            ixor
            istore 7 /* h */
            iload 7 /* h */
            iload 7 /* h */
            bipush 10
            ishl
            ixor
            istore 7 /* h */
        34: .line 491
            iload 7 /* h */
            ifne 36
        35: .line 492
            sipush 1024
            aload 6 /* t */
            invokevirtual java.lang.Thread.getId:()J
            l2i
            ior
            istore 7 /* h */
            goto 55
        36: .line 493
      StackMap locals:
      StackMap stack:
            iload 7 /* h */
            ifge 55
            iinc 10 /* spins */ -1
            iload 10 /* spins */
            sipush 511
            iand
            ifne 55
        37: .line 494
            invokestatic java.lang.Thread.yield:()V
        38: .line 495
            goto 55
        39: .line 496
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.slot:Ljava/util/concurrent/Exchanger$Node;
            aload 5 /* p */
            if_acmpeq 41
        40: .line 497
            sipush 1024
            istore 10 /* spins */
            goto 55
        41: .line 498
      StackMap locals:
      StackMap stack:
            aload 6 /* t */
            invokevirtual java.lang.Thread.isInterrupted:()Z
            ifne 50
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.arena:[Ljava/util/concurrent/Exchanger$Node;
            ifnonnull 50
        42: .line 499
            iload 2 /* timed */
            ifeq 43
            lload 8 /* end */
            invokestatic java.lang.System.nanoTime:()J
            lsub
            dup2
            lstore 3 /* ns */
            lconst_0
            lcmp
            ifle 50
        43: .line 500
      StackMap locals:
      StackMap stack:
            aload 5 /* p */
            aload 6 /* t */
            putfield java.util.concurrent.Exchanger$Node.parked:Ljava/lang/Thread;
        44: .line 501
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.slot:Ljava/util/concurrent/Exchanger$Node;
            aload 5 /* p */
            if_acmpne 48
        45: .line 502
            lload 3 /* ns */
            lconst_0
            lcmp
            ifne 47
        46: .line 503
            aload 0 /* this */
            invokestatic java.util.concurrent.locks.LockSupport.park:(Ljava/lang/Object;)V
            goto 48
        47: .line 505
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            lload 3 /* ns */
            invokestatic java.util.concurrent.locks.LockSupport.parkNanos:(Ljava/lang/Object;J)V
        48: .line 507
      StackMap locals:
      StackMap stack:
            aload 5 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.parked:Ljava/lang/Thread;
        49: .line 508
            goto 55
        50: .line 509
      StackMap locals:
      StackMap stack:
            getstatic java.util.concurrent.Exchanger.SLOT:Ljava/lang/invoke/VarHandle;
            aload 0 /* this */
            aload 5 /* p */
            aconst_null
            invokevirtual java.lang.invoke.VarHandle.compareAndSet:(Ljava/util/concurrent/Exchanger;Ljava/util/concurrent/Exchanger$Node;Ljava/lang/Void;)Z
            ifeq 55
        51: .line 510
            iload 2 /* timed */
            ifeq 52
            lload 3 /* ns */
            lconst_0
            lcmp
            ifgt 52
            aload 6 /* t */
            invokevirtual java.lang.Thread.isInterrupted:()Z
            ifne 52
            getstatic java.util.concurrent.Exchanger.TIMED_OUT:Ljava/lang/Object;
            goto 53
      StackMap locals:
      StackMap stack:
        52: aconst_null
      StackMap locals:
      StackMap stack: java.lang.Object
        53: astore 11 /* v */
        54: .line 511
            goto 57
        end local 11 // java.lang.Object v
        55: .line 488
      StackMap locals:
      StackMap stack:
            aload 5 /* p */
            getfield java.util.concurrent.Exchanger$Node.match:Ljava/lang/Object;
            dup
            astore 11 /* v */
        start local 11 // java.lang.Object v
        56: ifnull 32
        57: .line 514
      StackMap locals: java.lang.Object
      StackMap stack:
            getstatic java.util.concurrent.Exchanger.MATCH:Ljava/lang/invoke/VarHandle;
            aload 5 /* p */
            aconst_null
            invokevirtual java.lang.invoke.VarHandle.setRelease:(Ljava/util/concurrent/Exchanger$Node;Ljava/lang/Void;)V
        58: .line 515
            aload 5 /* p */
            aconst_null
            putfield java.util.concurrent.Exchanger$Node.item:Ljava/lang/Object;
        59: .line 516
            aload 5 /* p */
            iload 7 /* h */
            putfield java.util.concurrent.Exchanger$Node.hash:I
        60: .line 517
            aload 11 /* v */
            areturn
        end local 11 // java.lang.Object v
        end local 10 // int spins
        end local 8 // long end
        end local 7 // int h
        end local 6 // java.lang.Thread t
        end local 5 // java.util.concurrent.Exchanger$Node p
        end local 3 // long ns
        end local 2 // boolean timed
        end local 1 // java.lang.Object item
        end local 0 // java.util.concurrent.Exchanger this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   61     0   this  Ljava/util/concurrent/Exchanger<TV;>;
            0   61     1   item  Ljava/lang/Object;
            0   61     2  timed  Z
            0   61     3     ns  J
            1   61     5      p  Ljava/util/concurrent/Exchanger$Node;
            2   61     6      t  Ljava/lang/Thread;
            5   23     7      q  Ljava/util/concurrent/Exchanger$Node;
            8   13     8      v  Ljava/lang/Object;
           10   13     9      w  Ljava/lang/Thread;
           25   61     7      h  I
           28   61     8    end  J
           31   61    10  spins  I
           32   55    11      v  Ljava/lang/Object;
           56   61    11      v  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      item   
      timed  
      ns     

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.util.concurrent.Exchanger this
         0: .line 523
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 524
            aload 0 /* this */
            new java.util.concurrent.Exchanger$Participant
            dup
            invokespecial java.util.concurrent.Exchanger$Participant.<init>:()V
            putfield java.util.concurrent.Exchanger.participant:Ljava/util/concurrent/Exchanger$Participant;
         2: .line 525
            return
        end local 0 // java.util.concurrent.Exchanger this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/util/concurrent/Exchanger<TV;>;

  public V exchange();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // java.util.concurrent.Exchanger this
        start local 1 // java.lang.Object x
         0: .line 564
            aload 1 /* x */
            ifnonnull 1
            getstatic java.util.concurrent.Exchanger.NULL_ITEM:Ljava/lang/Object;
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 1 /* x */
      StackMap locals:
      StackMap stack: java.lang.Object
         2: astore 3 /* item */
        start local 3 // java.lang.Object item
         3: .line 565
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.arena:[Ljava/util/concurrent/Exchanger$Node;
            ifnonnull 6
         4: .line 566
            aload 0 /* this */
            aload 3 /* item */
            iconst_0
            lconst_0
            invokevirtual java.util.concurrent.Exchanger.slotExchange:(Ljava/lang/Object;ZJ)Ljava/lang/Object;
            dup
            astore 2 /* v */
        start local 2 // java.lang.Object v
         5: ifnonnull 10
        end local 2 // java.lang.Object v
         6: .line 567
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object top java.lang.Object
      StackMap stack:
            invokestatic java.lang.Thread.interrupted:()Z
            ifne 9
         7: .line 568
            aload 0 /* this */
            aload 3 /* item */
            iconst_0
            lconst_0
            invokevirtual java.util.concurrent.Exchanger.arenaExchange:(Ljava/lang/Object;ZJ)Ljava/lang/Object;
            dup
            astore 2 /* v */
        start local 2 // java.lang.Object v
         8: ifnonnull 10
        end local 2 // java.lang.Object v
         9: .line 569
      StackMap locals:
      StackMap stack:
            new java.lang.InterruptedException
            dup
            invokespecial java.lang.InterruptedException.<init>:()V
            athrow
        start local 2 // java.lang.Object v
        10: .line 570
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object java.lang.Object java.lang.Object
      StackMap stack:
            aload 2 /* v */
            getstatic java.util.concurrent.Exchanger.NULL_ITEM:Ljava/lang/Object;
            if_acmpne 11
            aconst_null
            goto 12
      StackMap locals:
      StackMap stack:
        11: aload 2 /* v */
      StackMap locals:
      StackMap stack: java.lang.Object
        12: areturn
        end local 3 // java.lang.Object item
        end local 2 // java.lang.Object v
        end local 1 // java.lang.Object x
        end local 0 // java.util.concurrent.Exchanger this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   13     0  this  Ljava/util/concurrent/Exchanger<TV;>;
            0   13     1     x  TV;
            5    6     2     v  Ljava/lang/Object;
            8    9     2     v  Ljava/lang/Object;
           10   13     2     v  Ljava/lang/Object;
            3   13     3  item  Ljava/lang/Object;
    Exceptions:
      throws java.lang.InterruptedException
    Signature: (TV;)TV;
    MethodParameters:
      Name  Flags
      x     

  public V exchange(V, long, java.util.concurrent.TimeUnit);
    descriptor: (Ljava/lang/Object;JLjava/util/concurrent/TimeUnit;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=9, args_size=4
        start local 0 // java.util.concurrent.Exchanger this
        start local 1 // java.lang.Object x
        start local 2 // long timeout
        start local 4 // java.util.concurrent.TimeUnit unit
         0: .line 619
            aload 1 /* x */
            ifnonnull 1
            getstatic java.util.concurrent.Exchanger.NULL_ITEM:Ljava/lang/Object;
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 1 /* x */
      StackMap locals:
      StackMap stack: java.lang.Object
         2: astore 6 /* item */
        start local 6 // java.lang.Object item
         3: .line 620
            aload 4 /* unit */
            lload 2 /* timeout */
            invokevirtual java.util.concurrent.TimeUnit.toNanos:(J)J
            lstore 7 /* ns */
        start local 7 // long ns
         4: .line 621
            aload 0 /* this */
            getfield java.util.concurrent.Exchanger.arena:[Ljava/util/concurrent/Exchanger$Node;
            ifnonnull 7
         5: .line 622
            aload 0 /* this */
            aload 6 /* item */
            iconst_1
            lload 7 /* ns */
            invokevirtual java.util.concurrent.Exchanger.slotExchange:(Ljava/lang/Object;ZJ)Ljava/lang/Object;
            dup
            astore 5 /* v */
        start local 5 // java.lang.Object v
         6: ifnonnull 11
        end local 5 // java.lang.Object v
         7: .line 623
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object long java.util.concurrent.TimeUnit top java.lang.Object long
      StackMap stack:
            invokestatic java.lang.Thread.interrupted:()Z
            ifne 10
         8: .line 624
            aload 0 /* this */
            aload 6 /* item */
            iconst_1
            lload 7 /* ns */
            invokevirtual java.util.concurrent.Exchanger.arenaExchange:(Ljava/lang/Object;ZJ)Ljava/lang/Object;
            dup
            astore 5 /* v */
        start local 5 // java.lang.Object v
         9: ifnonnull 11
        end local 5 // java.lang.Object v
        10: .line 625
      StackMap locals:
      StackMap stack:
            new java.lang.InterruptedException
            dup
            invokespecial java.lang.InterruptedException.<init>:()V
            athrow
        start local 5 // java.lang.Object v
        11: .line 626
      StackMap locals: java.util.concurrent.Exchanger java.lang.Object long java.util.concurrent.TimeUnit java.lang.Object java.lang.Object long
      StackMap stack:
            aload 5 /* v */
            getstatic java.util.concurrent.Exchanger.TIMED_OUT:Ljava/lang/Object;
            if_acmpne 13
        12: .line 627
            new java.util.concurrent.TimeoutException
            dup
            invokespecial java.util.concurrent.TimeoutException.<init>:()V
            athrow
        13: .line 628
      StackMap locals:
      StackMap stack:
            aload 5 /* v */
            getstatic java.util.concurrent.Exchanger.NULL_ITEM:Ljava/lang/Object;
            if_acmpne 14
            aconst_null
            goto 15
      StackMap locals:
      StackMap stack:
        14: aload 5 /* v */
      StackMap locals:
      StackMap stack: java.lang.Object
        15: areturn
        end local 7 // long ns
        end local 6 // java.lang.Object item
        end local 5 // java.lang.Object v
        end local 4 // java.util.concurrent.TimeUnit unit
        end local 2 // long timeout
        end local 1 // java.lang.Object x
        end local 0 // java.util.concurrent.Exchanger this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   16     0     this  Ljava/util/concurrent/Exchanger<TV;>;
            0   16     1        x  TV;
            0   16     2  timeout  J
            0   16     4     unit  Ljava/util/concurrent/TimeUnit;
            6    7     5        v  Ljava/lang/Object;
            9   10     5        v  Ljava/lang/Object;
           11   16     5        v  Ljava/lang/Object;
            3   16     6     item  Ljava/lang/Object;
            4   16     7       ns  J
    Exceptions:
      throws java.lang.InterruptedException, java.util.concurrent.TimeoutException
    Signature: (TV;JLjava/util/concurrent/TimeUnit;)TV;
    MethodParameters:
         Name  Flags
      x        
      timeout  
      unit     
}
Signature: <V:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "Exchanger.java"
NestMembers:
  java.util.concurrent.Exchanger$Node  java.util.concurrent.Exchanger$Participant
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles
  final Node = java.util.concurrent.Exchanger$Node of java.util.concurrent.Exchanger
  final Participant = java.util.concurrent.Exchanger$Participant of java.util.concurrent.Exchanger