Description of problem:
jBPM Designer test suite on Jenkins running without Bpmn2UnmarshallingTestCase. Meanwhile this class has 8 non-successful tests.

Also this Class (Bpmn2UnmarshallingTestCase) has 9 commented tests (one of them has comment "Disabling test that doesn't pass.")
VFSRepositoryGitFileSystemTest has 6 commented tests (one of them with comment "disabling this test for now"), 
JbpmServiceRepositoryServletTest has 1 commented test (no other tests in this class), 
TaskFormsServletTest has 2 commented tests (no other tests in this class). 
It have to be reviewed and actualized.


Version-Release number of selected component (if applicable):
6.2, 6.3.DR1, 6.4.SNAPSHOT

How reproducible:
always

Steps to Reproduce:
1. Go to "jbpm-designer/jbpm-designer-backend"
2. Run "mvn clean test" // All tests successfully passed (except skipped)
3. Run "mvn clean test -Dtest=Bpmn2UnmarshallingTestCase" // 8 tests not passed

Expected results:
"mvn clean test" will run all existing tests and all of them will be successful.