public abstract class java.lang.ref.Reference<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: java.lang.ref.Reference
  super_class: java.lang.Object
{
  private T referent;
    descriptor: Ljava/lang/Object;
    flags: (0x0002) ACC_PRIVATE
    Signature: TT;

  volatile java.lang.ref.ReferenceQueue<? super T> queue;
    descriptor: Ljava/lang/ref/ReferenceQueue;
    flags: (0x0040) ACC_VOLATILE
    Signature: Ljava/lang/ref/ReferenceQueue<-TT;>;

  volatile java.lang.ref.Reference next;
    descriptor: Ljava/lang/ref/Reference;
    flags: (0x0040) ACC_VOLATILE

  private transient java.lang.ref.Reference<T> discovered;
    descriptor: Ljava/lang/ref/Reference;
    flags: (0x0082) ACC_PRIVATE, ACC_TRANSIENT
    Signature: Ljava/lang/ref/Reference<TT;>;

  private static java.lang.ref.Reference$Lock lock;
    descriptor: Ljava/lang/ref/Reference$Lock;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  private static java.lang.ref.Reference<java.lang.Object> pending;
    descriptor: Ljava/lang/ref/Reference;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Signature: Ljava/lang/ref/Reference<Ljava/lang/Object;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=2, args_size=0
         0: .line 117
            new java.lang.ref.Reference$Lock
            dup
            invokespecial java.lang.ref.Reference$Lock.<init>:()V
            putstatic java.lang.ref.Reference.lock:Ljava/lang/ref/Reference$Lock;
         1: .line 125
            aconst_null
            putstatic java.lang.ref.Reference.pending:Ljava/lang/ref/Reference;
         2: .line 222
            invokestatic java.lang.Thread.currentThread:()Ljava/lang/Thread;
            invokevirtual java.lang.Thread.getThreadGroup:()Ljava/lang/ThreadGroup;
            astore 0 /* tg */
        start local 0 // java.lang.ThreadGroup tg
         3: .line 223
            aload 0 /* tg */
            astore 1 /* tgn */
        start local 1 // java.lang.ThreadGroup tgn
         4: .line 224
            goto 6
         5: .line 225
      StackMap locals: java.lang.ThreadGroup java.lang.ThreadGroup
      StackMap stack:
            aload 1 /* tgn */
            astore 0 /* tg */
            aload 0 /* tg */
            invokevirtual java.lang.ThreadGroup.getParent:()Ljava/lang/ThreadGroup;
            astore 1 /* tgn */
         6: .line 224
      StackMap locals:
      StackMap stack:
            aload 1 /* tgn */
            ifnonnull 5
        end local 1 // java.lang.ThreadGroup tgn
         7: .line 226
            new java.lang.ref.Reference$ReferenceHandler
            dup
            aload 0 /* tg */
            ldc "Reference Handler"
            invokespecial java.lang.ref.Reference$ReferenceHandler.<init>:(Ljava/lang/ThreadGroup;Ljava/lang/String;)V
            astore 1 /* handler */
        start local 1 // java.lang.Thread handler
         8: .line 230
            aload 1 /* handler */
            bipush 10
            invokevirtual java.lang.Thread.setPriority:(I)V
         9: .line 231
            aload 1 /* handler */
            iconst_1
            invokevirtual java.lang.Thread.setDaemon:(Z)V
        10: .line 232
            aload 1 /* handler */
            invokevirtual java.lang.Thread.start:()V
        11: .line 235
            new java.lang.ref.Reference$1
            dup
            invokespecial java.lang.ref.Reference$1.<init>:()V
            invokestatic sun.misc.SharedSecrets.setJavaLangRefAccess:(Lsun/misc/JavaLangRefAccess;)V
        end local 1 // java.lang.Thread handler
        end local 0 // java.lang.ThreadGroup tg
        12: .line 241
            return
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            3   12     0       tg  Ljava/lang/ThreadGroup;
            4    7     1      tgn  Ljava/lang/ThreadGroup;
            8   12     1  handler  Ljava/lang/Thread;

  static boolean tryHandlePending(boolean);
    descriptor: (Z)Z
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // boolean waitForNotify
         0: .line 178
            getstatic java.lang.ref.Reference.lock:Ljava/lang/ref/Reference$Lock;
            dup
            astore 3
            monitorenter
         1: .line 179
            getstatic java.lang.ref.Reference.pending:Ljava/lang/ref/Reference;
            ifnull 9
         2: .line 180
            getstatic java.lang.ref.Reference.pending:Ljava/lang/ref/Reference;
            astore 1 /* r */
        start local 1 // java.lang.ref.Reference r
         3: .line 183
            aload 1 /* r */
            instanceof sun.misc.Cleaner
            ifeq 4
            aload 1 /* r */
            checkcast sun.misc.Cleaner
            goto 5
      StackMap locals: int java.lang.ref.Reference top java.lang.ref.Reference$Lock
      StackMap stack:
         4: aconst_null
      StackMap locals:
      StackMap stack: sun.misc.Cleaner
         5: astore 2 /* c */
        start local 2 // sun.misc.Cleaner c
         6: .line 185
            aload 1 /* r */
            getfield java.lang.ref.Reference.discovered:Ljava/lang/ref/Reference;
            putstatic java.lang.ref.Reference.pending:Ljava/lang/ref/Reference;
         7: .line 186
            aload 1 /* r */
            aconst_null
            putfield java.lang.ref.Reference.discovered:Ljava/lang/ref/Reference;
         8: .line 187
            goto 13
        end local 2 // sun.misc.Cleaner c
        end local 1 // java.lang.ref.Reference r
         9: .line 190
      StackMap locals: int top top java.lang.ref.Reference$Lock
      StackMap stack:
            iload 0 /* waitForNotify */
            ifeq 11
        10: .line 191
            getstatic java.lang.ref.Reference.lock:Ljava/lang/ref/Reference$Lock;
            invokevirtual java.lang.Object.wait:()V
        11: .line 194
      StackMap locals:
      StackMap stack:
            iload 0 /* waitForNotify */
            aload 3
            monitorexit
        12: ireturn
        start local 1 // java.lang.ref.Reference r
        start local 2 // sun.misc.Cleaner c
        13: .line 178
      StackMap locals: int java.lang.ref.Reference sun.misc.Cleaner java.lang.ref.Reference$Lock
      StackMap stack:
            aload 3
            monitorexit
        14: goto 22
        end local 2 // sun.misc.Cleaner c
        end local 1 // java.lang.ref.Reference r
      StackMap locals: int top top java.lang.ref.Reference$Lock
      StackMap stack: java.lang.Throwable
        15: aload 3
            monitorexit
        16: athrow
        17: .line 197
      StackMap locals: int
      StackMap stack: java.lang.OutOfMemoryError
            pop
        18: .line 202
            invokestatic java.lang.Thread.yield:()V
        19: .line 204
            iconst_1
            ireturn
        20: .line 205
      StackMap locals:
      StackMap stack: java.lang.InterruptedException
            pop
        21: .line 207
            iconst_1
            ireturn
        start local 1 // java.lang.ref.Reference r
        start local 2 // sun.misc.Cleaner c
        22: .line 211
      StackMap locals: java.lang.ref.Reference sun.misc.Cleaner
      StackMap stack:
            aload 2 /* c */
            ifnull 25
        23: .line 212
            aload 2 /* c */
            invokevirtual sun.misc.Cleaner.clean:()V
        24: .line 213
            iconst_1
            ireturn
        25: .line 216
      StackMap locals:
      StackMap stack:
            aload 1 /* r */
            getfield java.lang.ref.Reference.queue:Ljava/lang/ref/ReferenceQueue;
            astore 3 /* q */
        start local 3 // java.lang.ref.ReferenceQueue q
        26: .line 217
            aload 3 /* q */
            getstatic java.lang.ref.ReferenceQueue.NULL:Ljava/lang/ref/ReferenceQueue;
            if_acmpeq 27
            aload 3 /* q */
            aload 1 /* r */
            invokevirtual java.lang.ref.ReferenceQueue.enqueue:(Ljava/lang/ref/Reference;)Z
            pop
        27: .line 218
      StackMap locals: java.lang.ref.ReferenceQueue
      StackMap stack:
            iconst_1
            ireturn
        end local 3 // java.lang.ref.ReferenceQueue q
        end local 2 // sun.misc.Cleaner c
        end local 1 // java.lang.ref.Reference r
        end local 0 // boolean waitForNotify
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   28     0  waitForNotify  Z
            3    9     1              r  Ljava/lang/ref/Reference<Ljava/lang/Object;>;
           13   15     1              r  Ljava/lang/ref/Reference<Ljava/lang/Object;>;
           22   28     1              r  Ljava/lang/ref/Reference<Ljava/lang/Object;>;
            6    9     2              c  Lsun/misc/Cleaner;
           13   15     2              c  Lsun/misc/Cleaner;
           22   28     2              c  Lsun/misc/Cleaner;
           26   28     3              q  Ljava/lang/ref/ReferenceQueue<-Ljava/lang/Object;>;
      Exception table:
        from    to  target  type
           1    12      15  any
          13    14      15  any
          15    16      15  any
           0    12      17  Class java.lang.OutOfMemoryError
          13    17      17  Class java.lang.OutOfMemoryError
           0    12      20  Class java.lang.InterruptedException
          13    17      20  Class java.lang.InterruptedException
    MethodParameters:
               Name  Flags
      waitForNotify  

  public T get();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.ref.Reference this
         0: .line 254
            aload 0 /* this */
            getfield java.lang.ref.Reference.referent:Ljava/lang/Object;
            areturn
        end local 0 // java.lang.ref.Reference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/lang/ref/Reference<TT;>;
    Signature: ()TT;

  public void clear();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.ref.Reference this
         0: .line 265
            aload 0 /* this */
            aconst_null
            putfield java.lang.ref.Reference.referent:Ljava/lang/Object;
         1: .line 266
            return
        end local 0 // java.lang.ref.Reference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/lang/ref/Reference<TT;>;

  public boolean isEnqueued();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.ref.Reference this
         0: .line 281
            aload 0 /* this */
            getfield java.lang.ref.Reference.queue:Ljava/lang/ref/ReferenceQueue;
            getstatic java.lang.ref.ReferenceQueue.ENQUEUED:Ljava/lang/ref/ReferenceQueue;
            if_acmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // java.lang.ref.Reference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/lang/ref/Reference<TT;>;

  public boolean enqueue();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.ref.Reference this
         0: .line 296
            aload 0 /* this */
            getfield java.lang.ref.Reference.queue:Ljava/lang/ref/ReferenceQueue;
            aload 0 /* this */
            invokevirtual java.lang.ref.ReferenceQueue.enqueue:(Ljava/lang/ref/Reference;)Z
            ireturn
        end local 0 // java.lang.ref.Reference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/lang/ref/Reference<TT;>;

  void <init>();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // java.lang.ref.Reference this
        start local 1 // java.lang.Object referent
         0: .line 303
            aload 0 /* this */
            aload 1 /* referent */
            aconst_null
            invokespecial java.lang.ref.Reference.<init>:(Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;)V
         1: .line 304
            return
        end local 1 // java.lang.Object referent
        end local 0 // java.lang.ref.Reference this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Ljava/lang/ref/Reference<TT;>;
            0    2     1  referent  TT;
    Signature: (TT;)V
    MethodParameters:
          Name  Flags
      referent  

  void <init>(T, java.lang.ref.ReferenceQueue<? super T>);
    descriptor: (Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // java.lang.ref.Reference this
        start local 1 // java.lang.Object referent
        start local 2 // java.lang.ref.ReferenceQueue queue
         0: .line 306
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 307
            aload 0 /* this */
            aload 1 /* referent */
            putfield java.lang.ref.Reference.referent:Ljava/lang/Object;
         2: .line 308
            aload 0 /* this */
            aload 2 /* queue */
            ifnonnull 3
            getstatic java.lang.ref.ReferenceQueue.NULL:Ljava/lang/ref/ReferenceQueue;
            goto 4
      StackMap locals: java.lang.ref.Reference java.lang.Object java.lang.ref.ReferenceQueue
      StackMap stack: java.lang.ref.Reference
         3: aload 2 /* queue */
      StackMap locals: java.lang.ref.Reference java.lang.Object java.lang.ref.ReferenceQueue
      StackMap stack: java.lang.ref.Reference java.lang.ref.ReferenceQueue
         4: putfield java.lang.ref.Reference.queue:Ljava/lang/ref/ReferenceQueue;
         5: .line 309
            return
        end local 2 // java.lang.ref.ReferenceQueue queue
        end local 1 // java.lang.Object referent
        end local 0 // java.lang.ref.Reference this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    6     0      this  Ljava/lang/ref/Reference<TT;>;
            0    6     1  referent  TT;
            0    6     2     queue  Ljava/lang/ref/ReferenceQueue<-TT;>;
    Signature: (TT;Ljava/lang/ref/ReferenceQueue<-TT;>;)V
    MethodParameters:
          Name  Flags
      referent  
      queue     
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "Reference.java"
NestMembers:
  java.lang.ref.Reference$1  java.lang.ref.Reference$Lock  java.lang.ref.Reference$ReferenceHandler
InnerClasses:
  java.lang.ref.Reference$1
  private Lock = java.lang.ref.Reference$Lock of java.lang.ref.Reference
  private ReferenceHandler = java.lang.ref.Reference$ReferenceHandler of java.lang.ref.Reference