[JBoss-user] What means javax.naming.CommunicationException?

[Andrew]

Hi, when I looukup Home interface I've got following exception:   javax.naming.CommunicationException.  Root exception is java.io.InvalidClassException: org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy; Local class not compatible: stream classdesc serialVersionUID=6136307389075444997 local class serialVersionUID=432426690456622923  at java.io.ObjectStreamClass.validateLocalClass(ObjectStreamClass.java:523)  at java.io.ObjectStreamClass.setClass(ObjectStreamClass.java:567)  at java.io.ObjectInputStream.inputClassDescriptor(ObjectInputStream.java:936)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:366)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)  at java.io.ObjectInputStream.inputClassDescriptor(ObjectInputStream.java:940)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:366)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)  at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1186)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)  at java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2263)  at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:519)  at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1412)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)  at java.rmi.MarshalledObject.get(MarshalledObject.java:138)  at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:353)  at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:333)  at javax.naming.InitialContext.lookup(InitialContext.java:350)  at c.main(c.java:7) Exception in thread "main"   What does it means?