"wingkwok" wrote : I got similar problem but my exception is "java.security.AccessControlException: access denied (java.util.PropertyPermission SERIALIZATION read)." | I don't use Java Security Manager. | | What does this "SERIALIZATION read" mean? Why do I get the AccessControlException even I don't use java.security.manager commandline option? | | Thanks in advance! | | Wing After I added the following 3 lines in ".java.policy" file in the user's home directory (${user.home}), the problem is solved. Still don't understand why there was security restriction even though I didn't use "-Djava.security.manager" on the command line. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976416#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...