To complete by post, i tried to compile JBossCache whith JDK 1.6.0 and already have the same pb. Christophe View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4047216#4047216 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4047216