Hello! I've solved that. It's a debugging issue. I've changed my debug settings from: wrapper.java.additional.26=-Xdebug wrapper.java.additional.27=-Xnoagent wrapper.java.additional.28=-Djava.compiler=NONE wrapper.java.additional.27=-Xrunjdwp:transport=dt_socket,address=7199,server=y,suspend=n to: wrapper.java.additional.26=-Xdebug wrapper.java.additional.27=-Xrunjdwp:transport=dt_socket,address=7199,server=y,suspend=n and JBoss becomes fast again. see http://forums.java.net/jive/thread.jspa?messageID=205206 Hope it solves your problem too. Sven View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040432#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...