You were right... I think i fixed java but i still get the same error.... Java -version now says: java version "1.5.0_06" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing) before it was: java version "1.4.2" gij (GNU libgcj) version 4.1.0 (Ubuntu 4.1.0-1ubuntu8) Volkan JBoss Bootstrap Environment JBOSS_HOME: /opt/jboss/system/src JAVA: /usr/lib/jvm/java-1.5.0-sun-1.5.0.06/bin/java JAVA_OPTS: -Dprogram.name=run.sh -server -Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 CLASSPATH: /opt/jboss/system/src/bin/run.jar:/usr/lib/jvm/java-1.5.0-sun-1.5.0.06/lib/tools.jar View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4006302#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...