ServiceReference ref = ipojoHelper.getServiceReferenceByName(CheckService.class.getName(), under.getInstanceName());
Assert.assertNotNull(ref);
CheckService cs = (CheckService) osgiHelper.getServiceObject(ref);
cs.doSomethingBad2();
Assert.assertNull(cs.getLastRolledBack());
Assert.assertNotNull(cs.getLastCommitted());
Assert.assertEquals(1, cs.getNumberOfCommit());
Assert.assertEquals(0, cs.getNumberOfRollback());