Running java code on VMWare with references to external jar files

Question

I am trying to run simple java code on VMWare Workstation. I have the following simple test Main file:

import cern.jet.random.engine.RandomSeedGenerator;;

public class TestDataService {

    //private static Logger logger = Logger.getLogger(TestDataService.class);
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        System.out.println("Hello World DAI!");

        // Input some data.
        RandomSeedGenerator re = new RandomSeedGenerator();
        return;
}
}

RandomSeedGenerator is a class in colt.jar library, and I have the jar file under my lib folder.

I am building the project with ant, and I have the following manifest file where I set the classpath:

Manifest-Version: 1.0
Main-Class: edu.umass.TestDataService
Name: edu/umass/TestDataService/Version.class
Class-Path: lib/colt.jar

When I run the code from the VMWare shell which runs Red Hat Linux, I get this Exception:

[root@localhost] java -jar app.jar

Hello World DAI!
Exception in thread "main" java.lang.NoClassDefFoundError: cern/jet/random/engine/RandomSeedGenerator
at edu.umass.TestDataService.main (Unknown Source)
Caused by: java.long.ClassNotFoundException: cern.jet.random.engine.RandomSeedGenerator

Just as a final note, everything seems to work fine on windows with eclipse, but nothing seems to work on the virtual machine. Any ideas?