ClassNoDefFoundError while running a junit test which is instrumented using TPTP probekit agent - junit

Question

I've been dealing with this error message for a while now and nobody has been able to help me...
I am trying to probe a java application using the standalone TPTP probekit agent with the following linux command:
java '-agentlib:JPIBootLoader=JPIAgent:server=standalone;ProbekitAgent:ext-pk-BCILibraryName=BCIEngProbe,ext-pk-probescript=ome/anis/qf-t/core/probe/testProbe.probescript' junit.textui.TestRunner quickfix.test.acceptance.AcceptanceTestSuite
My application is actually a junit testcase from the Quickfixj package (quickfixj.org)...
Running the above command, the probing starts and I am able to see the runtime traces. However, at some point during execution I am getting the runtime exception:
java.lang.NoClassDefFoundError: testProbe_probe$Probe_0
25-Jan-2012 10:25:11 AM quickfix.test.acceptance.ATServer run
SEVERE: error in AT server
java.lang.NoClassDefFoundError: testProbe_probe$Probe_0
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl.<init>(DocumentBuilderFactoryImpl.java)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:147)
at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:233)
at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:123)
at quickfix.DataDictionary.load(DataDictionary.java:906)
at quickfix.DataDictionary.read(DataDictionary.java:893)
at quickfix.DataDictionary.<init>(DataDictionary.java:109)
at quickfix.DefaultSessionFactory.getDataDictionary(DefaultSessionFactory.java:325)
at quickfix.DefaultSessionFactory.createDataDictionary(DefaultSessionFactory.java:219)
at quickfix.DefaultSessionFactory.processFixtDataDictionaries(DefaultSessionFactory.java:258)
at quickfix.DefaultSessionFactory.create(DefaultSessionFactory.java:113)
at quickfix.mina.acceptor.AbstractSocketAcceptor.createSessions(AbstractSocketAcceptor.java:242)
at quickfix.mina.acceptor.AbstractSocketAcceptor.startAcceptingConnections(AbstractSocketAcceptor.java:99)
at quickfix.SocketAcceptor.initialize(SocketAcceptor.java:66)
at quickfix.SocketAcceptor.start(SocketAcceptor.java:59)
at quickfix.test.acceptance.ATServer.run(ATServer.java:193)
at java.lang.Thread.run(Thread.java:662)**
which states that my probe file is missing. But this file has been needed in the first place to print the traces!!???.....
Well, here are some facts:
I am able to probe other applications, including a simple junit test:
java '-agentlib:JPIBootLoader=JPIAgent:server=standalone;ProbekitAgent:ext-pk-BCILibraryName=BCIEngProbe,ext-pk-probescript=ome/anis/qf-t/core/probe/testProbe.probescript' junit.textui.TestRunner quickfix.test.acceptance.AnisJUnitTestExample
I am able to run the quickfix.test.acceptance.AcceptanceTestSuite using junit (no probing):
java junit.textui.TestRunner quickfix.test.acceptance.AcceptanceTestSuite
I have set the path to testProbe_probe$Probe_0 in CLASSPATH
I have called the System.getenv("CLASSPATH") from within my testcase and the CLASSPATH seems to be fine
My testcase deals with threads, sockets, etc
And my system configuration is:
-os: ubuntu 10.04-64bit (on VirtualBox!)
-java version "1.6.0_24"
-junit: junit-4.10.jar
-TPTP agent controller: agntctrl.linux_em64t-TPTP-4.7.2
Any ideas??
Thanks,
Anis