"rknechtel" wrote : I'm having the same problems using JBoss 4.0.4GA & EJB 3.0 RC8. | | javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: org.jboss.ejb3.JBossProxy (no security manager: RMI class loader disabled)] | at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:728) | at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587) | at javax.naming.InitialContext.lookup(InitialContext.java:351) | at com.footlocker.client.Client.main(Unknown Source) | Caused by: java.lang.ClassNotFoundException: org.jboss.ejb3.JBossProxy (no security manager: RMI class loader disabled) | at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:531) | at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628) | at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294) | at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238) | at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1494) | at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1457) | at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693) | at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) | at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339) | at java.rmi.MarshalledObject.get(MarshalledObject.java:135) | at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72) | at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:652) | | | I added the jars suggested but still no go. | And how do you resolve this problem? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3996588#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...