This indicates the internal error from the eviction thread. If this happens often, then it can be a bug. Can you open up a Jira issue and attach the xml and alos log tracing (specifically org.jboss.cache.eviction)?
Created a JIRA and attached the treecache.xml file. Had enabled the TRACE level logging on org.jboss.cache.eviction and the log file after doing a zip is turning out to be of 24.4MB size and as a result am not able to attach it to the JIRA issue. Is there some other way, i can send over this zippped log file?
Boy, 24MB is a lot. :-) Isn't there a way for you to trim it down? Otherwise, if you can give me the test case so I can run it from my end, that'd be good as well.
I uploaded the zipped log file at:
Meanwhile, i will try to find a way of trimming down the logs if possible. As far as the test cases are concerned, i am afraid, a lot of setup will be required at your end to run those.
I'll have a look at this and get back to you.