The following 2 framework tests fail on a fast Windows 8.1 machine, causing a framework build to fail:
1 - PackageAdminImplTest
2 - StartStopBundleTest
The first seems to be different platform semantics on File.listFiles return
The second seems to be a case of delay being needed beteen stopping the platform and cleaning up the cache dir.
A patch is attached with workarounds both, although in the 2nd case a better solution is probably needed than an arbitrary delay e.g. a listener for the stop event event before deleting cache.