i use jdk1.6, jboss 5.0.0.GA, My eclipse 6.0 anonymous wrote : | java.lang.RuntimeException: Specified calling class, [I could not be found for sun.misc.Launcher$AppClassLoader@18d107f | at org.jboss.ejb3.common.lang.SerializableMethod.getClassFromName(SerializableMethod.java:348) | at org.jboss.ejb3.common.lang.SerializableMethod.toMethod(SerializableMethod.java:238) | at org.jboss.ejb3.common.lang.SerializableMethod.toMethod(SerializableMethod.java:219) | at org.jboss.ejb3.proxy.handler.ProxyInvocationHandlerBase.invoke(ProxyInvocationHandlerBase.java:236) | at org.jboss.ejb3.proxy.handler.session.SessionSpecProxyInvocationHandlerBase.invoke(SessionSpecProxyInvocationHandlerBase.java:101) | at $Proxy2.findAll(Unknown Source) | at MsgSender.main(MsgSender.java:61) | Caused by: java.lang.ClassNotFoundException: [I | at java.net.URLClassLoader$1.run(Unknown Source) | at java.security.AccessController.doPrivileged(Native Method) | at java.net.URLClassLoader.findClass(Unknown Source) | at java.lang.ClassLoader.loadClass(Unknown Source) | at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) | at java.lang.ClassLoader.loadClass(Unknown Source) | at org.jboss.ejb3.common.lang.SerializableMethod.getClassFromName(SerializableMethod.java:344) | ... 6 more | The exception error occurs on the client. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4199682#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...