This clustering test orj.jboss.test.ha.farm.test.ClusterFileTransferTestCase:
creates a test file farmtestfile.jar on node0, waits 15 seconds and checks that the file has been propagated to node1 and that the files have equal contents
(ii) deletes the test file on node1, waits 15 seconds and checks that the file on node0 has been deleted
(iii) creates a file on node1, waits 15 seconds and checks that the file has been propagated to node0 and that the files have equal contents

The test fails in a repeatable manner, although sometimes for different reasons:
a. in some cases, the file deletion on node1 in step (ii) fails, despite the fact that the file exists
b. in some cases, the file existence on node0 in step (iii) fails - the file just does not get propagated

Please see the initial logged issue JBPAPP-171 for more details and logs.