class sun.nio.ch.Iocp extends sun.nio.ch.AsynchronousChannelGroupImpl
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: sun.nio.ch.Iocp
  super_class: sun.nio.ch.AsynchronousChannelGroupImpl
{
  private static final jdk.internal.misc.Unsafe unsafe;
    descriptor: Ljdk/internal/misc/Unsafe;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final long INVALID_HANDLE_VALUE;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: -1

  private final java.util.concurrent.locks.ReadWriteLock keyToChannelLock;
    descriptor: Ljava/util/concurrent/locks/ReadWriteLock;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.util.Map<java.lang.Integer, sun.nio.ch.Iocp$OverlappedChannel> keyToChannel;
    descriptor: Ljava/util/Map;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/Integer;Lsun/nio/ch/Iocp$OverlappedChannel;>;

  private int nextCompletionKey;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private final long port;
    descriptor: J
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private boolean closed;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private final java.util.Set<java.lang.Long> staleIoSet;
    descriptor: Ljava/util/Set;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Set<Ljava/lang/Long;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 45
            invokestatic jdk.internal.misc.Unsafe.getUnsafe:()Ljdk/internal/misc/Unsafe;
            putstatic sun.nio.ch.Iocp.unsafe:Ljdk/internal/misc/Unsafe;
         1: .line 436
            invokestatic sun.nio.ch.IOUtil.load:()V
         2: .line 437
            invokestatic sun.nio.ch.Iocp.initIDs:()V
         3: .line 438
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(java.nio.channels.spi.AsynchronousChannelProvider, sun.nio.ch.ThreadPool);
    descriptor: (Ljava/nio/channels/spi/AsynchronousChannelProvider;Lsun/nio/ch/ThreadPool;)V
    flags: (0x0000) 
    Code:
      stack=7, locals=3, args_size=3
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // java.nio.channels.spi.AsynchronousChannelProvider provider
        start local 2 // sun.nio.ch.ThreadPool pool
         0: .line 68
            aload 0 /* this */
            aload 1 /* provider */
            aload 2 /* pool */
            invokespecial sun.nio.ch.AsynchronousChannelGroupImpl.<init>:(Ljava/nio/channels/spi/AsynchronousChannelProvider;Lsun/nio/ch/ThreadPool;)V
         1: .line 49
            aload 0 /* this */
            new java.util.concurrent.locks.ReentrantReadWriteLock
            dup
            invokespecial java.util.concurrent.locks.ReentrantReadWriteLock.<init>:()V
            putfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
         2: .line 50
            aload 0 /* this */
         3: .line 51
            new java.util.HashMap
            dup
            invokespecial java.util.HashMap.<init>:()V
            putfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
         4: .line 63
            aload 0 /* this */
            new java.util.HashSet
            dup
            invokespecial java.util.HashSet.<init>:()V
            putfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
         5: .line 69
            aload 0 /* this */
         6: .line 70
            ldc -1
            lconst_0
            iconst_0
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.fixedThreadCount:()I
            invokestatic sun.nio.ch.Iocp.createIoCompletionPort:(JJII)J
         7: .line 69
            putfield sun.nio.ch.Iocp.port:J
         8: .line 71
            aload 0 /* this */
            iconst_1
            putfield sun.nio.ch.Iocp.nextCompletionKey:I
         9: .line 72
            return
        end local 2 // sun.nio.ch.ThreadPool pool
        end local 1 // java.nio.channels.spi.AsynchronousChannelProvider provider
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   10     0      this  Lsun/nio/ch/Iocp;
            0   10     1  provider  Ljava/nio/channels/spi/AsynchronousChannelProvider;
            0   10     2      pool  Lsun/nio/ch/ThreadPool;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      provider  
      pool      

  sun.nio.ch.Iocp start();
    descriptor: ()Lsun/nio/ch/Iocp;
    flags: (0x0000) 
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // sun.nio.ch.Iocp this
         0: .line 75
            aload 0 /* this */
            new sun.nio.ch.Iocp$EventHandlerTask
            dup
            aload 0 /* this */
            invokespecial sun.nio.ch.Iocp$EventHandlerTask.<init>:(Lsun/nio/ch/Iocp;)V
            invokevirtual sun.nio.ch.Iocp.startThreads:(Ljava/lang/Runnable;)V
         1: .line 76
            aload 0 /* this */
            areturn
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lsun/nio/ch/Iocp;

  void implClose();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=3, locals=4, args_size=1
        start local 0 // sun.nio.ch.Iocp this
         0: .line 92
            aload 0 /* this */
            dup
            astore 1
            monitorenter
         1: .line 93
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.closed:Z
            ifeq 4
         2: .line 94
            aload 1
            monitorexit
         3: return
         4: .line 95
      StackMap locals: sun.nio.ch.Iocp
      StackMap stack:
            aload 0 /* this */
            iconst_1
            putfield sun.nio.ch.Iocp.closed:Z
         5: .line 92
            aload 1
            monitorexit
         6: goto 9
      StackMap locals:
      StackMap stack: java.lang.Throwable
         7: aload 1
            monitorexit
         8: athrow
         9: .line 97
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.port:J
            invokestatic sun.nio.ch.Iocp.close0:(J)V
        10: .line 98
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            dup
            astore 1
            monitorenter
        11: .line 99
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 3
            goto 14
      StackMap locals: sun.nio.ch.Iocp java.util.Set top java.util.Iterator
      StackMap stack:
        12: aload 3
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.Long
            astore 2 /* ov */
        start local 2 // java.lang.Long ov
        13: .line 100
            getstatic sun.nio.ch.Iocp.unsafe:Ljdk/internal/misc/Unsafe;
            aload 2 /* ov */
            invokevirtual java.lang.Long.longValue:()J
            invokevirtual jdk.internal.misc.Unsafe.freeMemory:(J)V
        end local 2 // java.lang.Long ov
        14: .line 99
      StackMap locals:
      StackMap stack:
            aload 3
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 12
        15: .line 102
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            invokeinterface java.util.Set.clear:()V
        16: .line 98
            aload 1
            monitorexit
        17: goto 20
      StackMap locals: sun.nio.ch.Iocp java.util.Set
      StackMap stack: java.lang.Throwable
        18: aload 1
            monitorexit
        19: athrow
        20: .line 104
      StackMap locals:
      StackMap stack:
            return
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   21     0  this  Lsun/nio/ch/Iocp;
           13   14     2    ov  Ljava/lang/Long;
      Exception table:
        from    to  target  type
           1     3       7  any
           4     6       7  any
           7     8       7  any
          11    17      18  any
          18    19      18  any

  boolean isEmpty();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=3, args_size=1
        start local 0 // sun.nio.ch.Iocp this
         0: .line 108
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.lock:()V
         1: .line 110
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            invokeinterface java.util.Map.isEmpty:()Z
            istore 2
         2: .line 112
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
         3: .line 110
            iload 2
            ireturn
         4: .line 111
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 1
         5: .line 112
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
         6: .line 113
            aload 1
            athrow
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lsun/nio/ch/Iocp;
      Exception table:
        from    to  target  type
           1     2       4  any

  final java.lang.Object attachForeignChannel(java.nio.channels.Channel, java.io.FileDescriptor);
    descriptor: (Ljava/nio/channels/Channel;Ljava/io/FileDescriptor;)Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL
    Code:
      stack=5, locals=4, args_size=3
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // java.nio.channels.Channel channel
        start local 2 // java.io.FileDescriptor fdObj
         0: .line 120
            aload 0 /* this */
            new sun.nio.ch.Iocp$1
            dup
            aload 0 /* this */
            aload 1 /* channel */
            invokespecial sun.nio.ch.Iocp$1.<init>:(Lsun/nio/ch/Iocp;Ljava/nio/channels/Channel;)V
         1: .line 127
            lconst_0
         2: .line 120
            invokevirtual sun.nio.ch.Iocp.associate:(Lsun/nio/ch/Iocp$OverlappedChannel;J)I
            istore 3 /* key */
        start local 3 // int key
         3: .line 128
            iload 3 /* key */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            areturn
        end local 3 // int key
        end local 2 // java.io.FileDescriptor fdObj
        end local 1 // java.nio.channels.Channel channel
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lsun/nio/ch/Iocp;
            0    4     1  channel  Ljava/nio/channels/Channel;
            0    4     2    fdObj  Ljava/io/FileDescriptor;
            3    4     3      key  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      channel  final
      fdObj    

  final void detachForeignChannel(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0010) ACC_FINAL
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // java.lang.Object key
         0: .line 133
            aload 0 /* this */
            aload 1 /* key */
            checkcast java.lang.Integer
            invokevirtual java.lang.Integer.intValue:()I
            invokevirtual sun.nio.ch.Iocp.disassociate:(I)V
         1: .line 134
            return
        end local 1 // java.lang.Object key
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lsun/nio/ch/Iocp;
            0    2     1   key  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      key   

  void closeAllChannels();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=4, locals=6, args_size=1
        start local 0 // sun.nio.ch.Iocp this
         0: .line 147
            bipush 32
            anewarray sun.nio.ch.Iocp$OverlappedChannel
            astore 1 /* channels */
        start local 1 // sun.nio.ch.Iocp$OverlappedChannel[] channels
         1: .line 151
      StackMap locals: sun.nio.ch.Iocp$OverlappedChannel[]
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.lock:()V
         2: .line 152
            iconst_0
            istore 2 /* count */
        start local 2 // int count
         3: .line 154
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            invokeinterface java.util.Map.keySet:()Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 4
            goto 8
      StackMap locals: sun.nio.ch.Iocp sun.nio.ch.Iocp$OverlappedChannel[] int top java.util.Iterator
      StackMap stack:
         4: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.Integer
            astore 3 /* key */
        start local 3 // java.lang.Integer key
         5: .line 155
            aload 1 /* channels */
            iload 2 /* count */
            iinc 2 /* count */ 1
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            aload 3 /* key */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast sun.nio.ch.Iocp$OverlappedChannel
            aastore
         6: .line 156
            iload 2 /* count */
            bipush 32
            if_icmplt 8
         7: .line 157
            goto 13
        end local 3 // java.lang.Integer key
         8: .line 154
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 4
         9: .line 159
            goto 13
      StackMap locals: sun.nio.ch.Iocp sun.nio.ch.Iocp$OverlappedChannel[] int
      StackMap stack: java.lang.Throwable
        10: astore 5
        11: .line 160
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
        12: .line 161
            aload 5
            athrow
        13: .line 160
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
        14: .line 164
            iconst_0
            istore 3 /* i */
        start local 3 // int i
        15: goto 20
        16: .line 166
      StackMap locals: int
      StackMap stack:
            aload 1 /* channels */
            iload 3 /* i */
            aaload
            invokeinterface sun.nio.ch.Iocp$OverlappedChannel.close:()V
        17: .line 167
            goto 19
      StackMap locals:
      StackMap stack: java.io.IOException
        18: pop
        19: .line 164
      StackMap locals:
      StackMap stack:
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
        20: iload 3 /* i */
            iload 2 /* count */
            if_icmplt 16
        end local 3 // int i
        21: .line 169
            iload 2 /* count */
        22: .line 149
            ifgt 1
        23: .line 170
            return
        end local 2 // int count
        end local 1 // sun.nio.ch.Iocp$OverlappedChannel[] channels
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   24     0      this  Lsun/nio/ch/Iocp;
            1   24     1  channels  [Lsun/nio/ch/Iocp$OverlappedChannel;
            3   24     2     count  I
            5    8     3       key  Ljava/lang/Integer;
           15   21     3         i  I
      Exception table:
        from    to  target  type
           3    10      10  any
          16    17      18  Class java.io.IOException

  private void wakeup();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // sun.nio.ch.Iocp this
         0: .line 174
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.port:J
            iconst_0
            invokestatic sun.nio.ch.Iocp.postQueuedCompletionStatus:(JI)V
         1: .line 175
            goto 4
      StackMap locals:
      StackMap stack: java.io.IOException
         2: astore 1 /* e */
        start local 1 // java.io.IOException e
         3: .line 177
            new java.lang.AssertionError
            dup
            aload 1 /* e */
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
        end local 1 // java.io.IOException e
         4: .line 179
      StackMap locals:
      StackMap stack:
            return
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lsun/nio/ch/Iocp;
            3    4     1     e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           0     1       2  Class java.io.IOException

  void executeOnHandlerTask(java.lang.Runnable);
    descriptor: (Ljava/lang/Runnable;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // java.lang.Runnable task
         0: .line 183
            aload 0 /* this */
            dup
            astore 2
            monitorenter
         1: .line 184
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.closed:Z
            ifeq 3
         2: .line 185
            new java.util.concurrent.RejectedExecutionException
            dup
            invokespecial java.util.concurrent.RejectedExecutionException.<init>:()V
            athrow
         3: .line 186
      StackMap locals: sun.nio.ch.Iocp
      StackMap stack:
            aload 0 /* this */
            aload 1 /* task */
            invokevirtual sun.nio.ch.Iocp.offerTask:(Ljava/lang/Runnable;)V
         4: .line 187
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.wakeup:()V
         5: .line 183
            aload 2
            monitorexit
         6: goto 9
      StackMap locals:
      StackMap stack: java.lang.Throwable
         7: aload 2
            monitorexit
         8: athrow
         9: .line 190
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.lang.Runnable task
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lsun/nio/ch/Iocp;
            0   10     1  task  Ljava/lang/Runnable;
      Exception table:
        from    to  target  type
           1     6       7  any
           7     8       7  any
    MethodParameters:
      Name  Flags
      task  

  void shutdownHandlerTasks();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=2, args_size=1
        start local 0 // sun.nio.ch.Iocp this
         0: .line 195
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.threadCount:()I
            istore 1 /* nThreads */
        start local 1 // int nThreads
         1: .line 196
            goto 3
         2: .line 197
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.wakeup:()V
         3: .line 196
      StackMap locals:
      StackMap stack:
            iload 1 /* nThreads */
            iinc 1 /* nThreads */ -1
            ifgt 2
         4: .line 199
            return
        end local 1 // int nThreads
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0      this  Lsun/nio/ch/Iocp;
            1    5     1  nThreads  I

  int associate(sun.nio.ch.Iocp$OverlappedChannel, long);
    descriptor: (Lsun/nio/ch/Iocp$OverlappedChannel;J)I
    flags: (0x0000) 
    Code:
      stack=6, locals=6, args_size=3
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // sun.nio.ch.Iocp$OverlappedChannel ch
        start local 2 // long handle
         0: .line 205
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.lock:()V
         1: .line 210
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.isShutdown:()Z
            ifeq 3
         2: .line 211
            new java.nio.channels.ShutdownChannelGroupException
            dup
            invokespecial java.nio.channels.ShutdownChannelGroupException.<init>:()V
            athrow
         3: .line 215
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield sun.nio.ch.Iocp.nextCompletionKey:I
            dup_x1
            iconst_1
            iadd
            putfield sun.nio.ch.Iocp.nextCompletionKey:I
            istore 4 /* key */
        start local 4 // int key
         4: .line 216
            iload 4 /* key */
            ifeq 3
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            iload 4 /* key */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            ifne 3
         5: .line 219
            lload 2 /* handle */
            lconst_0
            lcmp
            ifeq 7
         6: .line 220
            lload 2 /* handle */
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.port:J
            iload 4 /* key */
            iconst_0
            invokestatic sun.nio.ch.Iocp.createIoCompletionPort:(JJII)J
            pop2
         7: .line 224
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            iload 4 /* key */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            aload 1 /* ch */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         8: .line 225
            goto 12
        end local 4 // int key
      StackMap locals: sun.nio.ch.Iocp sun.nio.ch.Iocp$OverlappedChannel long
      StackMap stack: java.lang.Throwable
         9: astore 5
        10: .line 226
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
        11: .line 227
            aload 5
            athrow
        start local 4 // int key
        12: .line 226
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
        13: .line 228
            iload 4 /* key */
            ireturn
        end local 4 // int key
        end local 2 // long handle
        end local 1 // sun.nio.ch.Iocp$OverlappedChannel ch
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   14     0    this  Lsun/nio/ch/Iocp;
            0   14     1      ch  Lsun/nio/ch/Iocp$OverlappedChannel;
            0   14     2  handle  J
            4    9     4     key  I
           12   14     4     key  I
      Exception table:
        from    to  target  type
           1     9       9  any
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      ch      
      handle  

  void disassociate(int);
    descriptor: (I)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=2
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // int key
         0: .line 235
            iconst_0
            istore 2 /* checkForShutdown */
        start local 2 // boolean checkForShutdown
         1: .line 237
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.lock:()V
         2: .line 239
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            iload 1 /* key */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokeinterface java.util.Map.remove:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         3: .line 242
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannel:Ljava/util/Map;
            invokeinterface java.util.Map.isEmpty:()Z
            ifeq 9
         4: .line 243
            iconst_1
            istore 2 /* checkForShutdown */
         5: .line 245
            goto 9
      StackMap locals: sun.nio.ch.Iocp int int
      StackMap stack: java.lang.Throwable
         6: astore 3
         7: .line 246
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
         8: .line 247
            aload 3
            athrow
         9: .line 246
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.keyToChannelLock:Ljava/util/concurrent/locks/ReadWriteLock;
            invokeinterface java.util.concurrent.locks.ReadWriteLock.writeLock:()Ljava/util/concurrent/locks/Lock;
            invokeinterface java.util.concurrent.locks.Lock.unlock:()V
        10: .line 250
            iload 2 /* checkForShutdown */
            ifeq 14
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.isShutdown:()Z
            ifeq 14
        11: .line 252
            aload 0 /* this */
            invokevirtual sun.nio.ch.Iocp.shutdownNow:()V
        12: .line 253
            goto 14
      StackMap locals:
      StackMap stack: java.io.IOException
        13: pop
        14: .line 255
      StackMap locals:
      StackMap stack:
            return
        end local 2 // boolean checkForShutdown
        end local 1 // int key
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0   15     0              this  Lsun/nio/ch/Iocp;
            0   15     1               key  I
            1   15     2  checkForShutdown  Z
      Exception table:
        from    to  target  type
           2     6       6  any
          11    12      13  Class java.io.IOException
    MethodParameters:
      Name  Flags
      key   

  void makeStale(java.lang.Long);
    descriptor: (Ljava/lang/Long;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // java.lang.Long overlapped
         0: .line 262
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            dup
            astore 2
            monitorenter
         1: .line 263
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            aload 1 /* overlapped */
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
         2: .line 262
            aload 2
            monitorexit
         3: goto 6
      StackMap locals: sun.nio.ch.Iocp java.lang.Long java.util.Set
      StackMap stack: java.lang.Throwable
         4: aload 2
            monitorexit
         5: athrow
         6: .line 265
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.lang.Long overlapped
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    7     0        this  Lsun/nio/ch/Iocp;
            0    7     1  overlapped  Ljava/lang/Long;
      Exception table:
        from    to  target  type
           1     3       4  any
           4     5       4  any
    MethodParameters:
            Name  Flags
      overlapped  

  private void checkIfStale(long);
    descriptor: (J)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=5, args_size=2
        start local 0 // sun.nio.ch.Iocp this
        start local 1 // long ov
         0: .line 271
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            dup
            astore 3
            monitorenter
         1: .line 272
            aload 0 /* this */
            getfield sun.nio.ch.Iocp.staleIoSet:Ljava/util/Set;
            lload 1 /* ov */
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            invokeinterface java.util.Set.remove:(Ljava/lang/Object;)Z
            istore 4 /* removed */
        start local 4 // boolean removed
         2: .line 273
            iload 4 /* removed */
            ifeq 4
         3: .line 274
            getstatic sun.nio.ch.Iocp.unsafe:Ljdk/internal/misc/Unsafe;
            lload 1 /* ov */
            invokevirtual jdk.internal.misc.Unsafe.freeMemory:(J)V
        end local 4 // boolean removed
         4: .line 271
      StackMap locals: java.util.Set
      StackMap stack:
            aload 3
            monitorexit
         5: goto 8
      StackMap locals:
      StackMap stack: java.lang.Throwable
         6: aload 3
            monitorexit
         7: athrow
         8: .line 277
      StackMap locals:
      StackMap stack:
            return
        end local 1 // long ov
        end local 0 // sun.nio.ch.Iocp this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    9     0     this  Lsun/nio/ch/Iocp;
            0    9     1       ov  J
            2    4     4  removed  Z
      Exception table:
        from    to  target  type
           1     5       6  any
           6     7       6  any
    MethodParameters:
      Name  Flags
      ov    

  private static java.io.IOException translateErrorToIOException(int);
    descriptor: (I)Ljava/io/IOException;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // int error
         0: .line 296
            iload 0 /* error */
            invokestatic sun.nio.ch.Iocp.getErrorMessage:(I)Ljava/lang/String;
            astore 1 /* msg */
        start local 1 // java.lang.String msg
         1: .line 297
            aload 1 /* msg */
            ifnonnull 3
         2: .line 298
            new java.lang.StringBuilder
            dup
            ldc "Unknown error: 0x0"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 0 /* error */
            invokestatic java.lang.Integer.toHexString:(I)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 1 /* msg */
         3: .line 299
      StackMap locals: java.lang.String
      StackMap stack:
            new java.io.IOException
            dup
            aload 1 /* msg */
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            areturn
        end local 1 // java.lang.String msg
        end local 0 // int error
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0  error  I
            1    4     1    msg  Ljava/lang/String;
    MethodParameters:
       Name  Flags
      error  

  private static native void initIDs();
    descriptor: ()V
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE

  private static native long createIoCompletionPort(long, long, int, int);
    descriptor: (JJII)J
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    Exceptions:
      throws java.io.IOException
    MethodParameters:
               Name  Flags
      handle         
      existingPort   
      completionKey  
      concurrency    

  private static native void close0(long);
    descriptor: (J)V
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    MethodParameters:
        Name  Flags
      handle  

  private static native void getQueuedCompletionStatus(long, sun.nio.ch.Iocp$CompletionStatus);
    descriptor: (JLsun/nio/ch/Iocp$CompletionStatus;)V
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    Exceptions:
      throws java.io.IOException
    MethodParameters:
                Name  Flags
      completionPort  
      status          

  private static native void postQueuedCompletionStatus(long, int);
    descriptor: (JI)V
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    Exceptions:
      throws java.io.IOException
    MethodParameters:
                Name  Flags
      completionPort  
      completionKey   

  private static native java.lang.String getErrorMessage(int);
    descriptor: (I)Ljava/lang/String;
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    MethodParameters:
       Name  Flags
      error  
}
SourceFile: "Iocp.java"
NestMembers:
  sun.nio.ch.Iocp$1  sun.nio.ch.Iocp$CompletionStatus  sun.nio.ch.Iocp$EventHandlerTask  sun.nio.ch.Iocp$OverlappedChannel  sun.nio.ch.Iocp$ResultHandler
InnerClasses:
  sun.nio.ch.Iocp$1
  private CompletionStatus = sun.nio.ch.Iocp$CompletionStatus of sun.nio.ch.Iocp
  private EventHandlerTask = sun.nio.ch.Iocp$EventHandlerTask of sun.nio.ch.Iocp
  abstract OverlappedChannel = sun.nio.ch.Iocp$OverlappedChannel of sun.nio.ch.Iocp
  abstract ResultHandler = sun.nio.ch.Iocp$ResultHandler of sun.nio.ch.Iocp