PK70995: SOCKET FD LEAK BECAUSE OF JAVA.IO.IOEXCEPTION: THREAD SIGNAL FAILED

APAR status

• Closed as program error.

Error description

• Error Message: Socket FDs leaking
  .
  Stack Trace: The exception stack is seen as follows:
  java.io.IOException: Thread signal failed
  	at sun.nio.ch.NativeThread.signal(Native Method)
  	at
  sun.nio.ch.SocketChannelImpl.implCloseSelectableChannel(SocketCh
  annelImpl.java:646)
  	at
  java.nio.channels.spi.AbstractSelectableChannel.implCloseChannel
  (AbstractSelectableChannel.java:218)
  	at
  java.nio.channels.spi.AbstractInterruptibleChannel.close(Abstrac
  tInterruptibleChannel.java:118)
  	at
  sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.jav
  a:569)
  	at
  com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptConnectWork(
  WorkQueueManager.java:852)
  	at
  com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueue
  Manager.java:983)
  	at
  com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueu
  eManager.java:1044)
  	at
  com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled
  Code))
  .
  

Local fix

Problem summary

• The problem is occurring because a class data member is not
  being reset in finally block of finishConnect().
  

Problem conclusion

• This defect will be fixed in:
  5.0.0 SR9
  1.4.2 SR13
  .
  The SocketChannelImpl.java code has been changed so as to reset
  Class Data members wherever it is required.
  .
  To obtain the fix:
  Install build 20081119 or later
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK68592

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA(1.3/1.4 CO

• Fixed component ID

  5648C9800

Applicable component levels

• R42A PSN

     UP

• R42L PSN

     UP

• R42W PSN

     UP

• R420 PSN

     UP