IV20335: ASYNCHRONOUSSOCKETCHANNEL READ/WRITE FAILS WITH TIMEOUTEXCEPTION ON AIX

APAR status

• Closed as program error.

Error description

• Error Message: On AIX, using AsynchronousSocketChannel to
  read/write data will throw TimeoutException.
  .
  Stack Trace: j> 19:53:02 java.util.concurrent.TimeoutException:
  Timeout occured reading the channel during
  runHandlerReadWriteMultiple, iteration 0
  j> 19:53:02 Incoming buffer: null
  j> 19:53:02 ServerConnectionChannel:
  sun.nio.ch.UnixAsynchronousSocketChannelImpl<OSB>closed<CSB>
  j> 19:53:02
  j> 19:53:02 at
  tests.com.ibm.jtc.nio2.asyncio.client.MultipleReadWriteAsyncTest
  .runHandlerReadWriteMultiple(MultipleReadWriteAsyncTest.java:273
  )
  j> 19:53:02 at
  tests.com.ibm.jtc.nio2.asyncio.client.MultipleReadWriteAsyncTest
  .testHandlerReadWriteSingle(MultipleReadWriteAsyncTest.java:76)
  j> 19:53:02 at
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  j> 19:53:02 at
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.java:76)
  j> 19:53:02 at
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
  AccessorImpl.java:43)
  j> 19:53:02 at java.lang.reflect.Method.invoke(Method.java:602)
  j> 19:53:02 at
  junit.framework.TestCase.runTest(TestCase.java:168)
  j> 19:53:02 at
  junit.framework.TestCase.runBare(TestCase.java:134)
  j> 19:53:02 at
  junit.framework.TestResult$1.protect(TestResult.java:110)
  j> 19:53:02 at
  junit.framework.TestResult.runProtected(TestResult.java:128)
  j> 19:53:02 at
  junit.framework.TestResult.run(TestResult.java:113)
  j> 19:53:02 at junit.framework.TestCase.run(TestCase.java:124)
  j> 19:53:02 at
  junit.framework.TestSuite.runTest(TestSuite.java:243)
  j> 19:53:02 at junit.framework.TestSuite.run(TestSuite.java:238)
  j> 19:53:02 at
  com.ibm.jtc.test.jltf.workunitadapters.JUnitWorkUnit.runWork(JUn
  itWorkUnit.java:370)
  j> 19:53:02 at
  com.ibm.jtc.test.jltf.threads.WorkUnitRunner.run(WorkUnitRunner.
  java:113)
  j> 19:53:02 at
  com.ibm.jtc.test.jltf.threads.RunOnceThread.run(RunOnceThread.ja
  va:74)
  .
  

Local fix

Problem summary

• The converting from Unix event to AIX event is done twice, once
  in Java code and once in native code. That causes the pollout
  event lost.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR1
  WRT-V3 SR1
  .
  Convert the event only in native code and revert the change in
  java code.
  

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:

  IV21499

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R700 PSY

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