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Posted to users@tomcat.apache.org by Igor <ia...@ukr.net> on 2005/03/05 07:03:54 UTC

"Unable to perform background process on manager" question

Hello!

I have the following entry in catalina.out:

org.apache.catalina.core.StandardContext backgroundProcess
WARNING: Unable to perform background process on manager
java.util.NoSuchElementException
        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:790)
        at java.util.HashMap$KeyIterator.next(HashMap.java:823)
        at java.util.AbstractCollection.toArray(AbstractCollection.java:176)
        at org.apache.catalina.session.StandardSession.keys(StandardSession.java:1523)
        at org.apache.catalina.session.StandardSession.expire(StandardSession.java:706)
        at org.apache.catalina.session.StandardSession.isValid(StandardSession.java:566)
        at org.apache.catalina.session.StandardManager.processExpires(StandardManager.java:782)
        at org.apache.catalina.session.StandardManager.backgroundProcess(StandardManager.java:795)
        at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:4618)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1619)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1608)
        at java.lang.Thread.run(Thread.java:595)

There is no any entries in access log, that can correspond to this event.
Could somebody please tell me what does it mean?

Thank you in advance,
Igor