Re: IllegalStateException
Re: IllegalStateException
- Subject: Re: IllegalStateException
- From: Chuck Hill <email@hidden>
- Date: Fri, 27 May 2005 09:25:20 -0700
On May 27, 2005, at 9:17 AM, Shelli D. Orton wrote:
Hi
My woapp is taking a long time to set a checkbox setting (30+ minutes).
My, that is slow! :-) Sounds like your application is hung.
I
looked in the logs and am getting this exception:
2005-05-27 11:28:55 StandardManager[/xxxxx] processsExpire: Exception
during session expiration
java.lang.IllegalStateException: Illegal Lock usage: unlocking thread
not
owner.
at
com.webobjects.foundation.NSRecursiveLock.unlock(NSRecursiveLock.java:
207)
at
com.webobjects.eocontrol.EOEditingContext.unlock(EOEditingContext.java:
4611)
at
com.webobjects.appserver.WOSession.terminate(WOSession.java:541)
at
com.webobjects.appserver.WOSession._terminateByTimeout(WOSession.java:
518)
at
com.webobjects.jspservlet._WOSessionWatcher.valueUnbound(_WOSessionWatc
her.j
ava:25)
at
org.apache.catalina.session.StandardSession.removeAttribute(StandardSes
sion.
java:1143)
at
org.apache.catalina.session.StandardSession.expire(StandardSession.java
:628)
at
org.apache.catalina.session.StandardSession.expire(StandardSession.java
:601)
at
org.apache.catalina.session.StandardManager.processExpires(StandardMana
ger.j
ava:763)
at
org.apache.catalina.session.StandardManager.run(StandardManager.java:
840)
at java.lang.Thread.run(Thread.java:536)
Has anyone seen this before and/or know what causes this type of
exception?
That happens if the previous request for that session left one or more
outstanding locking on the defaultEditingContext(). This can happen if
you are locking/unlocking in awake()/sleep() in the page. If you do
that, you need to also keep a flag to prevent locking more than once.
A much better solution is to use the MultiECLockManager (available from
wocode) or ERXEC from Project Wonder.
Chuck
--
Practical WebObjects - a book for intermediate WebObjects developers
who want to increase their overall knowledge of WebObjects, or those
who are trying to solve specific application development problems.
http://www.global-village.net/products/practical_webobjects
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