I've written an abstract class that extends TestCase in order to test all classes that implement an interface I created named "FinancialDate." When I the run the tests, JUnit spits back an InstantiationException. After doing a little bit of digging, I've found out that the problem is that JUnit is trying to instantiate the abstract class directly and obviously fails in doing so. The apparent solution is to "exclude the abstract class file from the fileset of tests in my build.xml." I'm not familiar with ant at all, and simply get lost in the xml files involved in managing it. Does NetBeans provide a facility for excluding class files from the test suite?

Thank you