APAR status
Closed as program error.
Error description
Error Message: NullPointerException . Stack Trace: Exception in thread "ServerWorker1" java.lang.NullPointerException at sun.nio.ch.WindowsSelectorImpl.implDereg(WindowsSelectorImpl.jav a:653) at sun.nio.ch.SelectorImpl.processDeregisterQueue(SelectorImpl.java :168) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java :205) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:99) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:110) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:114) at com.ibm.mq.communications.NonBlockingServerWorker.run(NonBlockin gServerWorker.java:110) at java.lang.Thread.run(Thread.java:811) . NA
Local fix
Problem is not observed with ipV4 stack enabled. Use JVM argument -Djava.net.preferIPv4Stack=TRUE as a workaround
Problem summary
java.lang.NullPointerException thrown during nio channel selection process. NPE was seen to be thrown while one of channel which is not registered was tried to get accessed during deregistering process.
Problem conclusion
This defect will be fixed in: 6.0.0 SR9 FP2 . JVM is updated to deregister only the registered channels and there by avoid the null pointer exception . To obtain the fix: Install build 20110106 or later
Temporary fix
n/a
Comments
APAR Information
APAR number
IZ97564
Reported component name
JAVA CLASS LIBS
Reported component ID
620700130
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-04-04
Closed date
2011-07-23
Last modified date
2011-07-23
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
JAVA CLASS LIBS
Fixed component ID
620700130
Applicable component levels
R600 PSY
UP
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Document Information
Modified date:
23 July 2011