I built BETA5 from SVN yesterday... I'm using netty via the JMS API to remotely send large messages. (500K) Looking at the hprof I see that 98% of the heap is taken up by byte[] owned by org.jboss.messaging.core.remoting.impl.wireformat. SessionContinuationMessage. I'm a way off creating a test case for you at the moment but wondered if this was already a reported issue or something I should look at further? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4250699#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...