java.lang.ClassCastException: $Proxy78 cannot be cast to com

[areyyyyy]

Hi,
I got the following error when i tried to lookup on statefull session bean.

java.lang.ClassCastException: $Proxy78 cannot be cast to com.vs.uhome.model.session.LoginSession
com.vs.uhome.model.util.PropertyUtil.getLoginSession(PropertyUtil.java:239)
com.vs.uhome.view.serv.mainServ.onLogin(mainServ.java:101)
com.vs.uhome.view.serv.mainServ.doPost(mainServ.java:79)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

Here i m giving statefull session bean

@Stateful(name = "uhomeSession")
public class LoginSessionBean implements LoginSession {
@PersistenceContext(unitName = "Model")
private EntityManager em;
private PropertyLogger pl;
private Ruser sessionUser;
private FinderMethods fm;

public void logon(String userEmail, String password, boolean encrypted)
throws UnknownException, WarningException {
pl.write("Entered logon(String, String, boolean)", 1,
"DefaultSessionBean", "logon");
if ((userEmail == null) || userEmail.matches("^\\s*$")) {
throw new WarningException(new CatalogHelper("UHOME_002002", 1,
"DefaultSession", "logon"));
}
if (password == null) {
password = "";
}
if (encrypted) {
logon(userEmail, password);
} else {
String ecPasswd = PropertyUtil.encodeStr(password + userEmail);
logon(userEmail, ecPasswd);
}
pl.write("Leaving logon(String, String, boolean)", 1,

}
}


And i m doing lookup like this


public static LoginSession getLoginSession() throws UnknownException, WarningException {
LoginSession ls;
Context ctx;
try {
ctx = getInitialContext();
} catch (WarningException we) {
throw we;
} catch (NamingException ne) {
throw new UnknownException (new CatalogHelper("UHOME_900035", ne.getMessage(), ne, "PropertyUtil", "getLoginSession"));
}
try {
ls = (LoginSession)ctx.lookup("uhomeSession/remote");
return ls;
} catch (NamingException ne) {
throw new UnknownException (new CatalogHelper("UHOME_900036", new Object[]{"LoginSession", ne.getMessage()}, ne, "PropertyUtil", "getLoginSession"));
}
}



and i got the JNDI view like this
+- uhomeSession (class: org.jnp.interfaces.NamingContext)
| +- remote (class: java.lang.Object)
| +- remoteStatefulProxyFactory (proxy: $Proxy79 implements interface org.jboss.ejb3.ProxyFactory)

Can you please tell what is the problem. How to resolve this problem?
Thanks in advance!

[peterj]

I don't like the looks of the JNDI view entries - the "remote" node should be of a proxy for LoginSession. You did remember to add the @Remote annotation ot LoginSession, didn't you?

By the way, please use the code tag when posting code, and do a preview to check the formatting before submitting.

[areyyyyy]

Hi,

Thanks for ur reply.
Here i am providing remote interface and stateful session beans:



@Stateful(name = "uhomeSession")
@Remote( { LoginSession.class })
public class LoginSessionBean implements LoginSession {
@PersistenceContext(unitName = "Model")
private EntityManager em;
private PropertyLogger pl;
private Ruser sessionUser;
private FinderMethods fm;

public LoginSessionBean() throws UnknownException, WarningException {
pl = PropertyLogger.getInstance();
fm = new FinderMethods();
pl.write("Leaving LoginSessionBean constructor", 1, "LoginSessionBean",
"LoginSessionBean");
}

... some more methods
}


@Remote
public interface LoginSession {
Object mergeEntity(Object entity);
void checkSessionUser(String methodName) throws WarningException;
void logout();
... some more methods
}



and i am working with server JBOSS4.2.3GA.

Still i am getting same exception mentioned earlier.

and JNDI VIEW is
+- uhome (class: org.jnp.interfaces.NamingContext)
| +- DefaultSessionBean (class: org.jnp.interfaces.NamingContext)
| | +- remote (proxy: $Proxy96 implements interface com.vs.uhome.model.session.DefaultSession,interface org.jboss.ejb3.JBossProxy)
| +- uhomeSession (class: org.jnp.interfaces.NamingContext)
| | +- remote (class: java.lang.Object)
| | +- remoteStatefulProxyFactory (proxy: $Proxy65 implements interface org.jboss.ejb3.ProxyFactory)


I have deployed both stateless (DefaultSessionBean) and stateful (LoginSessionBean).I could call stateless from my servlet but i could not call statefull session beans.

and to mention i have deployed web files in war and all ejb files as jar inside uhome.ear file with application.xml file given below

<!DOCTYPE application PUBLIC "-//Sun Microsystems,
Inc.//DTD J2EE Application 1.2//EN"
"http://java.sun.com/j2ee/dtds/application_1_2.dtd">

<display-name>Uhome Application</display-name>


<web-uri>ViewController.war</web-uri>
<context-root>/ViewController</context-root>



Model.jar



Please tell me why stateful session beans remote node did not implement the proxy of loginsession? and what jndi string should i use to lookup for the login session?
Thanks