JBoss 5 is GA for some days, but NetBeans 6.5 dose not support JBoss 5.0.0 GA. I use google and find the solution to fix the problem. Follow this blog entry, Registering JBoss 5.0 in NetBeans 6.5. Simple copy several jars from JBoss common lib directory to the instance lib directroy. Enter the JBoss home directory and enter common/lib directory. [hantsy@localhost jboss-5.0.0.GA]cd common/lib [hantsy@localhost lib]cp jboss-javaee.jar jboss.jar jbosssx.jar jmx-adaptor-plugin.jar jnpserver.jar log4j.jar ../../server/default/lib/ It is simple. Now you can add JBoss 5 to the Server node in NetBeans Services Windows. But I encountered another problem under Fedora 10. When I start JBoss 5 from NetBeans Service panel. It failed with the following error message. The transaction service port is used by another application. [hantsy@localhost ~]$ sudo netstat -apl|grep 4713 [sudo] password for hantsy: tcp 0 0 *:4713 *:* LISTEN 24723...