Re: ClassCastException after retrieving an Entry

Christian Hager wrote:
> Ok I modified the code again a little.
 >
 > ClassLoaderUtil.displayContextClassLoaderTree ();
 > Entry entry = javaSpace.take (taskTmpl, txn, 30000);
 > ClassLoaderUtil.displayClassLoaderTree (entry.getClass ().getClassLoader());
 > Thread.currentThread ().setContextClassLoader
(entry.getClass().getClassLoader ());
 > ClassLoaderUtil.displayContextClassLoaderTree ();
 > ClassLoaderUtil.displayClassLoaderTree (TaskEntry.class.getClassLoader());
 > TaskEntry task = (TaskEntry) entry;

This won't do what needs to be done.  You need to do the following, in this order.

Entry entry;
ClassLoader ld = Thread.currentThread().getContextClassLoader();
try {
        Thread.currentThread().setContextClassLoader(
                TaskEntry.class.getClassLoader () );
        entry = javaSpace.take (taskTmpl, txn, 30000);
} finally {
        Thread.currentThread().setContextClassLoader( ld );
}
TaskEntry task = (TaskEntry) entry;

> I think the problem would be solved if I get TaskEntry to be loaded by the
> RMIClassLoader. Am I right? Does anyone know how to do this?

Not really.  TaskEntry must be resolved by the same ClassLoader that is visible
in all contexts that it will be used.

Gregg Wonderly

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