a number of unit tests fail on windows

I have failures in the following:
BytecodeIndexTest (I'm not sure if this is Windows-specific though)
EditManagedRepositoryActionTest (c: vs C: - need canonicalisation)
All repository tests in archiva-webapp (these are intermittent, failure to delete files in the setUp of the abstract test case for WebDAV - this suite of tests need a review due to their time consuming nature and timing issues)