When the test, or libraries used by the test, attempt to load a class or resource from the classpath, that request should be diverted to look in the ShrinkWrap archive defined by the test. Currently, this classloading operation is looking in the classpath visible to the test runner. This causes two problems:

1. resources in the ShrinkWrap archive are not found
2. the classpath available to the test case is leaking (only resources in the ShrinkWrap archive should be visible)

The classpath needs to be constrained/protected.