public class org.h2.util.CloseWatcher extends java.lang.ref.PhantomReference<java.lang.Object>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.h2.util.CloseWatcher
  super_class: java.lang.ref.PhantomReference
{
  private static java.lang.ref.ReferenceQueue<java.lang.Object> queue;
    descriptor: Ljava/lang/ref/ReferenceQueue;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Signature: Ljava/lang/ref/ReferenceQueue<Ljava/lang/Object;>;

  private static java.util.Set<org.h2.util.CloseWatcher> refs;
    descriptor: Ljava/util/Set;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Signature: Ljava/util/Set<Lorg/h2/util/CloseWatcher;>;

  private java.lang.String openStackTrace;
    descriptor: Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE

  private java.io.Closeable closeable;
    descriptor: Ljava/io/Closeable;
    flags: (0x0002) ACC_PRIVATE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 27
            new java.lang.ref.ReferenceQueue
            dup
            invokespecial java.lang.ref.ReferenceQueue.<init>:()V
            putstatic org.h2.util.CloseWatcher.queue:Ljava/lang/ref/ReferenceQueue;
         1: .line 33
            invokestatic org.h2.util.CloseWatcher.createSet:()Ljava/util/Set;
            putstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(, java.lang.ref.ReferenceQueue<java.lang.Object>, java.io.Closeable);
    descriptor: (Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;Ljava/io/Closeable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // org.h2.util.CloseWatcher this
        start local 1 // java.lang.Object referent
        start local 2 // java.lang.ref.ReferenceQueue q
        start local 3 // java.io.Closeable closeable
         0: .line 49
            aload 0 /* this */
            aload 1 /* referent */
            aload 2 /* q */
            invokespecial java.lang.ref.PhantomReference.<init>:(Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;)V
         1: .line 50
            aload 0 /* this */
            aload 3 /* closeable */
            putfield org.h2.util.CloseWatcher.closeable:Ljava/io/Closeable;
         2: .line 51
            return
        end local 3 // java.io.Closeable closeable
        end local 2 // java.lang.ref.ReferenceQueue q
        end local 1 // java.lang.Object referent
        end local 0 // org.h2.util.CloseWatcher this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lorg/h2/util/CloseWatcher;
            0    3     1   referent  Ljava/lang/Object;
            0    3     2          q  Ljava/lang/ref/ReferenceQueue<Ljava/lang/Object;>;
            0    3     3  closeable  Ljava/io/Closeable;
    Signature: (Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue<Ljava/lang/Object;>;Ljava/io/Closeable;)V
    MethodParameters:
           Name  Flags
      referent   
      q          
      closeable  

  private static java.util.Set<org.h2.util.CloseWatcher> createSet();
    descriptor: ()Ljava/util/Set;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 54
            new java.util.HashSet
            dup
            invokespecial java.util.HashSet.<init>:()V
            invokestatic java.util.Collections.synchronizedSet:(Ljava/util/Set;)Ljava/util/Set;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Signature: ()Ljava/util/Set<Lorg/h2/util/CloseWatcher;>;

  public static org.h2.util.CloseWatcher pollUnclosed();
    descriptor: ()Lorg/h2/util/CloseWatcher;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=0
         0: .line 63
            getstatic org.h2.util.CloseWatcher.queue:Ljava/lang/ref/ReferenceQueue;
            astore 0 /* q */
        start local 0 // java.lang.ref.ReferenceQueue q
         1: .line 64
            aload 0 /* q */
            ifnonnull 3
         2: .line 65
            aconst_null
            areturn
         3: .line 68
      StackMap locals: java.lang.ref.ReferenceQueue
      StackMap stack:
            aload 0 /* q */
            invokevirtual java.lang.ref.ReferenceQueue.poll:()Ljava/lang/ref/Reference;
            checkcast org.h2.util.CloseWatcher
            astore 1 /* cw */
        start local 1 // org.h2.util.CloseWatcher cw
         4: .line 69
            aload 1 /* cw */
            ifnonnull 6
         5: .line 70
            aconst_null
            areturn
         6: .line 72
      StackMap locals: org.h2.util.CloseWatcher
      StackMap stack:
            getstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
            ifnull 8
         7: .line 73
            getstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
            aload 1 /* cw */
            invokeinterface java.util.Set.remove:(Ljava/lang/Object;)Z
            pop
         8: .line 75
      StackMap locals:
      StackMap stack:
            aload 1 /* cw */
            getfield org.h2.util.CloseWatcher.closeable:Ljava/io/Closeable;
            ifnull 3
         9: .line 76
            aload 1 /* cw */
            areturn
        end local 1 // org.h2.util.CloseWatcher cw
        end local 0 // java.lang.ref.ReferenceQueue q
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            1   10     0     q  Ljava/lang/ref/ReferenceQueue<Ljava/lang/Object;>;
            4   10     1    cw  Lorg/h2/util/CloseWatcher;

  public static org.h2.util.CloseWatcher register(java.lang.Object, java.io.Closeable, boolean);
    descriptor: (Ljava/lang/Object;Ljava/io/Closeable;Z)Lorg/h2/util/CloseWatcher;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=7, args_size=3
        start local 0 // java.lang.Object o
        start local 1 // java.io.Closeable closeable
        start local 2 // boolean stackTrace
         0: .line 93
            getstatic org.h2.util.CloseWatcher.queue:Ljava/lang/ref/ReferenceQueue;
            astore 3 /* q */
        start local 3 // java.lang.ref.ReferenceQueue q
         1: .line 94
            aload 3 /* q */
            ifnonnull 4
         2: .line 95
            new java.lang.ref.ReferenceQueue
            dup
            invokespecial java.lang.ref.ReferenceQueue.<init>:()V
            astore 3 /* q */
         3: .line 96
            aload 3 /* q */
            putstatic org.h2.util.CloseWatcher.queue:Ljava/lang/ref/ReferenceQueue;
         4: .line 98
      StackMap locals: java.lang.ref.ReferenceQueue
      StackMap stack:
            new org.h2.util.CloseWatcher
            dup
            aload 0 /* o */
            aload 3 /* q */
            aload 1 /* closeable */
            invokespecial org.h2.util.CloseWatcher.<init>:(Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;Ljava/io/Closeable;)V
            astore 4 /* cw */
        start local 4 // org.h2.util.CloseWatcher cw
         5: .line 99
            iload 2 /* stackTrace */
            ifeq 10
         6: .line 100
            new java.lang.Exception
            dup
            ldc "Open Stack Trace"
            invokespecial java.lang.Exception.<init>:(Ljava/lang/String;)V
            astore 5 /* e */
        start local 5 // java.lang.Exception e
         7: .line 101
            new java.io.StringWriter
            dup
            invokespecial java.io.StringWriter.<init>:()V
            astore 6 /* s */
        start local 6 // java.io.StringWriter s
         8: .line 102
            aload 5 /* e */
            new java.io.PrintWriter
            dup
            aload 6 /* s */
            invokespecial java.io.PrintWriter.<init>:(Ljava/io/Writer;)V
            invokevirtual java.lang.Exception.printStackTrace:(Ljava/io/PrintWriter;)V
         9: .line 103
            aload 4 /* cw */
            aload 6 /* s */
            invokevirtual java.io.StringWriter.toString:()Ljava/lang/String;
            putfield org.h2.util.CloseWatcher.openStackTrace:Ljava/lang/String;
        end local 6 // java.io.StringWriter s
        end local 5 // java.lang.Exception e
        10: .line 105
      StackMap locals: org.h2.util.CloseWatcher
      StackMap stack:
            getstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
            ifnonnull 12
        11: .line 106
            invokestatic org.h2.util.CloseWatcher.createSet:()Ljava/util/Set;
            putstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
        12: .line 108
      StackMap locals:
      StackMap stack:
            getstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
            aload 4 /* cw */
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
        13: .line 109
            aload 4 /* cw */
            areturn
        end local 4 // org.h2.util.CloseWatcher cw
        end local 3 // java.lang.ref.ReferenceQueue q
        end local 2 // boolean stackTrace
        end local 1 // java.io.Closeable closeable
        end local 0 // java.lang.Object o
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   14     0           o  Ljava/lang/Object;
            0   14     1   closeable  Ljava/io/Closeable;
            0   14     2  stackTrace  Z
            1   14     3           q  Ljava/lang/ref/ReferenceQueue<Ljava/lang/Object;>;
            5   14     4          cw  Lorg/h2/util/CloseWatcher;
            7   10     5           e  Ljava/lang/Exception;
            8   10     6           s  Ljava/io/StringWriter;
    MethodParameters:
            Name  Flags
      o           
      closeable   
      stackTrace  

  public static void unregister(org.h2.util.CloseWatcher);
    descriptor: (Lorg/h2/util/CloseWatcher;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.h2.util.CloseWatcher w
         0: .line 118
            aload 0 /* w */
            aconst_null
            putfield org.h2.util.CloseWatcher.closeable:Ljava/io/Closeable;
         1: .line 119
            getstatic org.h2.util.CloseWatcher.refs:Ljava/util/Set;
            aload 0 /* w */
            invokeinterface java.util.Set.remove:(Ljava/lang/Object;)Z
            pop
         2: .line 120
            return
        end local 0 // org.h2.util.CloseWatcher w
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0     w  Lorg/h2/util/CloseWatcher;
    MethodParameters:
      Name  Flags
      w     

  public java.lang.String getOpenStackTrace();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.h2.util.CloseWatcher this
         0: .line 128
            aload 0 /* this */
            getfield org.h2.util.CloseWatcher.openStackTrace:Ljava/lang/String;
            areturn
        end local 0 // org.h2.util.CloseWatcher this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/h2/util/CloseWatcher;

  public java.io.Closeable getCloseable();
    descriptor: ()Ljava/io/Closeable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.h2.util.CloseWatcher this
         0: .line 132
            aload 0 /* this */
            getfield org.h2.util.CloseWatcher.closeable:Ljava/io/Closeable;
            areturn
        end local 0 // org.h2.util.CloseWatcher this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/h2/util/CloseWatcher;
}
Signature: Ljava/lang/ref/PhantomReference<Ljava/lang/Object;>;
SourceFile: "CloseWatcher.java"