Thanks very much, it worked. In fact, I had copied all jar files to JBOSS_HOME/lib/endorsed It did not work. I am using Vista. So i tried the second suggestion : nothing in JBOSS_HOME/lib/endorsed and I created a ENDORSED folder in jre1.6.0_07\lib\ And it works. It is a pretty annoying thing anyways. Thanks again jaikiran, it is not the fist time you have helped me successfully, i appreciate it a lot :) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4262706#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...