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EJB 3 javax.naming.Communication Exception

Rajesh Rathod
Greenhorn

Joined: Aug 01, 2007
Posts: 24
Hi, I am trying to access a remote stateless bean from a standalone client. I am using JBOSS application server.But I am getting the following exception:

javax.naming.CommunicationException [Root exception is java.io.InvalidClassException: org.jboss.ejb3.stateless.StatelessRemoteProxy; local class incompatible: stream classdesc serialVersionUID = 2583299153931800023, local class serialVersionUID = -9097306519795868]
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:723)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:588)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at com.ejb.bean.FirstEJB3TutorialClient.main(FirstEJB3TutorialClient.java:20)

where FirstEJB3TutorialClient.java is my client application running on a separate machine.

The code snippets for the various classes used are as follows:

BookTestBeanRemote interface:
@Remote
public interface BookTestBeanRemote {
public void testBook();
public void testCustomer();
public void testRelation();
}

BookTestBean class:

@Stateless
@RemoteBinding(jndiBinding="testBean")

public class BookTestBean implements BookTestBeanRemote {

@PersistenceContext

EntityManager em;

FirstEJB3TutorialClient class:

public class FirstEJB3TutorialClient {
public static void main(String[] args) {
try {
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jnp.interfaces.NamingContextFactory");
properties.put(Context.URL_PKG_PREFIXES,
"org.jboss.naming rg.jnp.interfaces");
properties.put(Context.PROVIDER_URL, "10.0.5.243:1099");
Context context = new InitialContext(properties);
BookTestBeanRemote beanRemote = (BookTestBeanRemote) context
.lookup("testBean");

beanRemote.testBook();

where 10.0.5.243 is the IP address of the server where JBOSS server is running.

Can someone please help me out??

Thanks


Rajesh Rathod<br />SCJP 1.4
Jaikiran Pai
Marshal

Joined: Jul 20, 2005
Posts: 10202
    
166

Let's continue the discussion in your other thread


[My Blog] [JavaRanch Journal]
Mark Spritzler
ranger
Sheriff

Joined: Feb 05, 2001
Posts: 17257
    
    6

Please do not duplicate post. The EJB3 forum is the more appropriate forum, this forum is for Object Relation Mapping tools only, which does cover JPA.

Mark


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subject: EJB 3 javax.naming.Communication Exception