Missing descriptor for [class com.... (In EJB Context)

Question

After a hot redeploy am getting this exception... Basically Toplink cannot find any desriptor classes any more.
Used to work fine in weblogic 6.1, not working any more in weblogic 8.1.
I do have this code to tell Toplink to get descriptor classes from current class loader:
ClassLoader cl = Thread.currentThread().getContextClassLoader();
Server s = SessionManager.getManager().getSession(SESSION_NAME, cl);
And no, putting my classes in weblogic classpath is NOT an option for me.
Thanks,
- Rustam -

Answer 1

I assume this is your ejbRemove of a SessionBean. This is probably not a good idea, the session is normally shared by mutliple session bean instances (normally you do not have a single session bean). This means that in a concurrent system you could be removing the session that other instances of the session bean are using. Also every time a new session bean is created it will have to rebuild the entire session and have an empty cache.
It would be better to do something like have a getSession() method on your session bean or your app that was used to access the TopLink. It should then refresh this session when the app is redeployed.
i.e.
static boolean hasSession = false;
public Session getSession() {
if (! hasSession) {
return SessionManager.getManager().getSession(getClass().getClassLoader(), "TOPS", true, true);
return SessionManager.getManager().getSession(getClass().getClassLoader(), "TOPS");