Forgive me if I am being a complete idiot (which has been known to
happen)
-- but I am confronted with a problem I can't seem to find an answer to.
Basically, I came across the rather infamous ClassCastException in
working
with an EJB in jBoss. Alas, after *@$#ing around with it for a few hours
I
found some of Rickard's clues on the mailing list archives which helped
me
find the solution. The problem was a mismatch in the ClassLoader
implementation for my ProjectBean.class and my proxy reference.

The results of:

   System.out.println(ref.getClass().getClassLoader());
   System.out.println(ProjectHome.class.getClassLoader()); 

came out as:

   [java] sun.misc.Launcher$AppClassLoader@7fdcde
   [java] junit.runner.TestCaseClassLoader@4e3f41

Only when these matched would the cast succeed. Problem solved, right?
Wrong, this actually brings me to my dilemna. As you may have noticed
I'm
using jUnit to test my EJB in this scenario. I would like to find a way
to
get around this problem such that my testing framework can be used for
EJBs
in the same way it is for all other portions of my application.

So far, I can't think of much. Briefly, I considered dynamically loading
my
ProjectHome class using the remote reference's class loader, but I don't
see
how a cast can be accomplished with that method. Regardless, it would
make
the testing code rather nasty looking. I assume at this point that the
casting issue is really a Java language issue, and there is no way to
solve
it that way obviously.

For some insight, I snagged the recent jbosstest module from cvs to see
if
the team had already come across a solution, but didn't see any real
utilization of the jUnit framework other than extending the classes --
which
weren't even used as far as I could tell. Should I assume it is for the
above reasons? If yes or no, I'd appreciate any thoughts you could
provide
on this issue.

-- 
Derek Slager
[EMAIL PROTECTED]


--
--------------------------------------------------------------
To subscribe:        [EMAIL PROTECTED]
To unsubscribe:      [EMAIL PROTECTED]
List Help?:          [EMAIL PROTECTED]

Reply via email to