public class org.h2.util.AbbaDetector
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.h2.util.AbbaDetector
  super_class: java.lang.Object
{
  private static final boolean TRACE;
    descriptor: Z
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 0

  private static final java.lang.ThreadLocal<java.util.Deque<java.lang.Object>> STACK;
    descriptor: Ljava/lang/ThreadLocal;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/lang/ThreadLocal<Ljava/util/Deque<Ljava/lang/Object;>;>;

  private static final java.util.Map<java.lang.Object, java.util.Map<java.lang.Object, java.lang.Exception>> LOCK_ORDERING;
    descriptor: Ljava/util/Map;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/Object;Ljava/util/Map<Ljava/lang/Object;Ljava/lang/Exception;>;>;

  private static final java.util.Set<java.lang.String> KNOWN_DEADLOCKS;
    descriptor: Ljava/util/Set;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/Set<Ljava/lang/String;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 23
            new org.h2.util.AbbaDetector$1
            dup
            invokespecial org.h2.util.AbbaDetector$1.<init>:()V
         1: .line 22
            putstatic org.h2.util.AbbaDetector.STACK:Ljava/lang/ThreadLocal;
         2: .line 35
            new java.util.WeakHashMap
            dup
            invokespecial java.util.WeakHashMap.<init>:()V
         3: .line 34
            putstatic org.h2.util.AbbaDetector.LOCK_ORDERING:Ljava/util/Map;
         4: .line 37
            new java.util.HashSet
            dup
            invokespecial java.util.HashSet.<init>:()V
            putstatic org.h2.util.AbbaDetector.KNOWN_DEADLOCKS:Ljava/util/Set;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.h2.util.AbbaDetector this
         0: .line 18
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.h2.util.AbbaDetector this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/h2/util/AbbaDetector;

  public static java.lang.Object begin(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=3, args_size=1
        start local 0 // java.lang.Object o
         0: .line 47
            aload 0 /* o */
            ifnonnull 4
         1: .line 48
            new org.h2.util.AbbaDetector$2
            dup
            invokespecial org.h2.util.AbbaDetector$2.<init>:()V
         2: .line 50
            getfield org.h2.util.AbbaDetector$2.clazz:Ljava/lang/Class;
         3: .line 48
            astore 0 /* o */
         4: .line 52
      StackMap locals:
      StackMap stack:
            getstatic org.h2.util.AbbaDetector.STACK:Ljava/lang/ThreadLocal;
            invokevirtual java.lang.ThreadLocal.get:()Ljava/lang/Object;
            checkcast java.util.Deque
            astore 1 /* stack */
        start local 1 // java.util.Deque stack
         5: .line 53
            aload 1 /* stack */
            invokeinterface java.util.Deque.isEmpty:()Z
            ifne 13
         6: .line 56
            aload 1 /* stack */
            aload 0 /* o */
            invokeinterface java.util.Deque.contains:(Ljava/lang/Object;)Z
            ifeq 12
         7: .line 58
            aload 0 /* o */
            areturn
         8: .line 61
      StackMap locals: java.util.Deque
      StackMap stack:
            aload 1 /* stack */
            invokeinterface java.util.Deque.peek:()Ljava/lang/Object;
            astore 2 /* last */
        start local 2 // java.lang.Object last
         9: .line 62
            aload 2 /* last */
            invokestatic java.lang.Thread.holdsLock:(Ljava/lang/Object;)Z
            ifeq 11
        10: .line 63
            goto 13
        11: .line 65
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 1 /* stack */
            invokeinterface java.util.Deque.pop:()Ljava/lang/Object;
            pop
        end local 2 // java.lang.Object last
        12: .line 60
      StackMap locals:
      StackMap stack:
            aload 1 /* stack */
            invokeinterface java.util.Deque.isEmpty:()Z
            ifeq 8
        13: .line 74
      StackMap locals:
      StackMap stack:
            aload 1 /* stack */
            invokeinterface java.util.Deque.isEmpty:()Z
            ifne 15
        14: .line 75
            aload 0 /* o */
            aload 1 /* stack */
            invokestatic org.h2.util.AbbaDetector.markHigher:(Ljava/lang/Object;Ljava/util/Deque;)V
        15: .line 77
      StackMap locals:
      StackMap stack:
            aload 1 /* stack */
            aload 0 /* o */
            invokeinterface java.util.Deque.push:(Ljava/lang/Object;)V
        16: .line 78
            aload 0 /* o */
            areturn
        end local 1 // java.util.Deque stack
        end local 0 // java.lang.Object o
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   17     0      o  Ljava/lang/Object;
            5   17     1  stack  Ljava/util/Deque<Ljava/lang/Object;>;
            9   12     2   last  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      o     

  private static java.lang.Object getTest(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.Object o
         0: .line 83
            aload 0 /* o */
            areturn
        end local 0 // java.lang.Object o
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0     o  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      o     

  private static java.lang.String getObjectName(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/String;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.Object o
         0: .line 87
            new java.lang.StringBuilder
            dup
            aload 0 /* o */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getSimpleName:()Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc "@"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* o */
            invokestatic java.lang.System.identityHashCode:(Ljava/lang/Object;)I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // java.lang.Object o
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0     o  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      o     

  private static synchronized void markHigher(, java.util.Deque<java.lang.Object>);
    descriptor: (Ljava/lang/Object;Ljava/util/Deque;)V
    flags: (0x002a) ACC_PRIVATE, ACC_STATIC, ACC_SYNCHRONIZED
    Code:
      stack=3, locals=13, args_size=2
        start local 0 // java.lang.Object o
        start local 1 // java.util.Deque older
         0: .line 91
            aload 0 /* o */
            invokestatic org.h2.util.AbbaDetector.getTest:(Ljava/lang/Object;)Ljava/lang/Object;
            astore 2 /* test */
        start local 2 // java.lang.Object test
         1: .line 92
            getstatic org.h2.util.AbbaDetector.LOCK_ORDERING:Ljava/util/Map;
            aload 2 /* test */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.Map
            astore 3 /* map */
        start local 3 // java.util.Map map
         2: .line 93
            aload 3 /* map */
            ifnonnull 5
         3: .line 94
            new java.util.WeakHashMap
            dup
            invokespecial java.util.WeakHashMap.<init>:()V
            astore 3 /* map */
         4: .line 95
            getstatic org.h2.util.AbbaDetector.LOCK_ORDERING:Ljava/util/Map;
            aload 2 /* test */
            aload 3 /* map */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         5: .line 97
      StackMap locals: java.lang.Object java.util.Map
      StackMap stack:
            aconst_null
            astore 4 /* oldException */
        start local 4 // java.lang.Exception oldException
         6: .line 98
            aload 1 /* older */
            invokeinterface java.util.Deque.iterator:()Ljava/util/Iterator;
            astore 6
            goto 29
      StackMap locals: java.lang.Object java.util.Deque java.lang.Object java.util.Map java.lang.Exception top java.util.Iterator
      StackMap stack:
         7: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            astore 5 /* old */
        start local 5 // java.lang.Object old
         8: .line 99
            aload 5 /* old */
            invokestatic org.h2.util.AbbaDetector.getTest:(Ljava/lang/Object;)Ljava/lang/Object;
            astore 7 /* oldTest */
        start local 7 // java.lang.Object oldTest
         9: .line 100
            aload 7 /* oldTest */
            aload 2 /* test */
            if_acmpne 11
        10: .line 101
            goto 29
        11: .line 103
      StackMap locals: java.lang.Object java.util.Deque java.lang.Object java.util.Map java.lang.Exception java.lang.Object java.util.Iterator java.lang.Object
      StackMap stack:
            getstatic org.h2.util.AbbaDetector.LOCK_ORDERING:Ljava/util/Map;
            aload 7 /* oldTest */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.Map
            astore 8 /* oldMap */
        start local 8 // java.util.Map oldMap
        12: .line 104
            aload 8 /* oldMap */
            ifnull 25
        13: .line 105
            aload 8 /* oldMap */
            aload 2 /* test */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.Exception
            astore 9 /* e */
        start local 9 // java.lang.Exception e
        14: .line 106
            aload 9 /* e */
            ifnull 25
        15: .line 107
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            aload 2 /* test */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc " "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 7 /* oldTest */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 10 /* deadlockType */
        start local 10 // java.lang.String deadlockType
        16: .line 108
            getstatic org.h2.util.AbbaDetector.KNOWN_DEADLOCKS:Ljava/util/Set;
            aload 10 /* deadlockType */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            ifne 25
        17: .line 109
            new java.lang.StringBuilder
            dup
            aload 2 /* test */
            invokestatic org.h2.util.AbbaDetector.getObjectName:(Ljava/lang/Object;)Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
        18: .line 110
            ldc " synchronized after \n "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 7 /* oldTest */
            invokestatic org.h2.util.AbbaDetector.getObjectName:(Ljava/lang/Object;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        19: .line 111
            ldc ", but in the past before"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        20: .line 109
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 11 /* message */
        start local 11 // java.lang.String message
        21: .line 112
            new java.lang.RuntimeException
            dup
            aload 11 /* message */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            astore 12 /* ex */
        start local 12 // java.lang.RuntimeException ex
        22: .line 113
            aload 12 /* ex */
            aload 9 /* e */
            invokevirtual java.lang.RuntimeException.initCause:(Ljava/lang/Throwable;)Ljava/lang/Throwable;
            pop
        23: .line 114
            aload 12 /* ex */
            getstatic java.lang.System.out:Ljava/io/PrintStream;
            invokevirtual java.lang.RuntimeException.printStackTrace:(Ljava/io/PrintStream;)V
        24: .line 116
            getstatic org.h2.util.AbbaDetector.KNOWN_DEADLOCKS:Ljava/util/Set;
            aload 10 /* deadlockType */
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
        end local 12 // java.lang.RuntimeException ex
        end local 11 // java.lang.String message
        end local 10 // java.lang.String deadlockType
        end local 9 // java.lang.Exception e
        25: .line 120
      StackMap locals: java.util.Map
      StackMap stack:
            aload 3 /* map */
            aload 7 /* oldTest */
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            ifne 29
        26: .line 121
            aload 4 /* oldException */
            ifnonnull 28
        27: .line 122
            new java.lang.Exception
            dup
            ldc "Before"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            astore 4 /* oldException */
        28: .line 124
      StackMap locals:
      StackMap stack:
            aload 3 /* map */
            aload 7 /* oldTest */
            aload 4 /* oldException */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        end local 8 // java.util.Map oldMap
        end local 7 // java.lang.Object oldTest
        end local 5 // java.lang.Object old
        29: .line 98
      StackMap locals: java.lang.Object java.util.Deque java.lang.Object java.util.Map java.lang.Exception top java.util.Iterator
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 7
        30: .line 127
            return
        end local 4 // java.lang.Exception oldException
        end local 3 // java.util.Map map
        end local 2 // java.lang.Object test
        end local 1 // java.util.Deque older
        end local 0 // java.lang.Object o
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   31     0             o  Ljava/lang/Object;
            0   31     1         older  Ljava/util/Deque<Ljava/lang/Object;>;
            1   31     2          test  Ljava/lang/Object;
            2   31     3           map  Ljava/util/Map<Ljava/lang/Object;Ljava/lang/Exception;>;
            6   31     4  oldException  Ljava/lang/Exception;
            8   29     5           old  Ljava/lang/Object;
            9   29     7       oldTest  Ljava/lang/Object;
           12   29     8        oldMap  Ljava/util/Map<Ljava/lang/Object;Ljava/lang/Exception;>;
           14   25     9             e  Ljava/lang/Exception;
           16   25    10  deadlockType  Ljava/lang/String;
           21   25    11       message  Ljava/lang/String;
           22   25    12            ex  Ljava/lang/RuntimeException;
    Signature: (Ljava/lang/Object;Ljava/util/Deque<Ljava/lang/Object;>;)V
    MethodParameters:
       Name  Flags
      o      
      older  
}
SourceFile: "AbbaDetector.java"
NestMembers:
  org.h2.util.AbbaDetector$1  org.h2.util.AbbaDetector$2
InnerClasses:
  org.h2.util.AbbaDetector$1
  org.h2.util.AbbaDetector$2