IV50158: JAVA.IO.IOEXCEPTION FROM SOCKETCHANNEL.CLOSE()

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: java.io.IOException: EDC5112I Resource temporarily
  unavailable.
  at sun.nio.ch.FileDispatcher.preClose0(Native Method)
  at
  sun.nio.ch.SocketDispatcher.preClose(SocketDispatcher.java:53)
  at
  sun.nio.ch.ServerSocketChannelImpl.implCloseSelectableChannel(Se
  rverSocketChannelImpl.java:248)
  at
  java.nio.channels.spi.AbstractSelectableChannel.implCloseChannel
  (AbstractSelectableChannel.java:212)
  at
  java.nio.channels.spi.AbstractInterruptibleChannel.close(Abstrac
  tInterruptibleChannel.java:97)
  .
  

Local fix

Problem summary

• Even though the threads which used the file descriptor are
  notified before issuing the dup2 call, the notify did not
  actioned by the time dup2 happened on the file descriptor.
  Hence, system issued a Resource temporarily unavailable message.
  

Problem conclusion

• This APAR will be fixed in the following Java Releases:
     6    SR15 FP1  (6.0.15.1)
     6 R1 SR7 FP1   (6.1.7.1)
     7    SR6 FP1   (7.0.6.1)
  .
  The JDK has been updated to retry the dup2() operation so that
  it will attempt a retry again by the time all the threads
  releases the file descriptor due to the notification
  

Temporary fix

Comments

APAR Information

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

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

  PI07923 PI08532

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSY

     UP

• R700 PSY

     UP