Hi, I've made some stress test using openSTA on a portal server installed from jboss-2.4.1sp1 ha bundled.zip. Running the server with jprofiler I noticed that some classes were allocated but never gc'ed. Those memory leaks brings the server to an outOf memory excetpion. Mentioned Classes are : - org.apache.commons.collections.map.LinkedMAp - org.apache.commons.collections.map.AbstractLinkedMap$LinkEntry - org.apache.commons.collections.map.AbstractHashedMap$Values Walking the heap I noticed that they were referenced by org.apache.jackrabbit.core.query.lucene.MultiIndex. I've upgraded jackrabbit core jar to 1.1.1 and re-run stress tests. o more memory leaks. :-) ps : stress test consisted in navigating the portal through pages with different cmsportlet instances showing different contents. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4052027#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...