Getting InvocationTargetException

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What steps will reproduce the problem?
1. Running Tomcat 6 via jsvc
2. Java ver 6
3. Linux (OpenSuse 10)
4. Using LooseJar 1.0.0

When I invoked the "summary()" operation in JConsole, an "Error" window opens 
in JConsole with the following message:

********************************************************
Problem invoking summary : java.lang.RuntimeException: 
java.lang.reflect.InvocationTargetException
********************************************************

In addition, I get the following output in "catalina.out":

---------------------------------------------------------
[loosejar]: Found 42279 classes loaded in the JVM.
[loosejar]: Found 1107 various ClassLoader(s) inside the JVM.
[loosejar]: Failed to invoke #findResources(String) method on classloader 
[WebappClassLoader
  delegate: false
  repositories:
].
---------------------------------------------------------

Interestingly enough, I can get loosejar to work on a similarily configured 
machine... there must be some subtle difference between the two machines that I 
am not aware of. Could this be some kind of permissions issue?

Original issue reported on code.google.com by [email protected] on 17 Sep 2010 at 6:20