Jenkins: inconsistent, regular test failures in openshift/egit

Jenkins build for OpenShift has inconsistent (they come and go, different tests affected) test failures. Those cant be reproduced in a local build.

Build #33
http://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_Master/job/jbosstools-openshift_4.3.mars/33/testReport/
org.jboss.tools.openshift.egit.internal.test.EGitUtilsTest.shouldReturnThatCloneIsAheadOfRemote
org.jboss.tools.openshift.egit.internal.test.EGitUtilsTest.shouldReturnThatCloneIsAheadOfRemote

Build #34:
http://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_Master/job/jbosstools-openshift_4.3.mars/34/testReport/org.jboss.tools.openshift.egit.internal.test/EGitUtilsTest/canCommitFileInProject/
org.jboss.tools.openshift.egit.internal.test.EGitUtilsTest.canCommitFileInProject

Build #35
http://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_9.0.mars/job/jbosstools-openshift_4.3.mars/35/testReport/junit/org.jboss.tools.openshift.egit.internal.test/EGitUtilsTest/changedButNotCommittedIsDirty/
org.jboss.tools.openshift.egit.internal.test.EGitUtilsTest.changedButNotCommittedIsDirty (from org.jboss.tools.openshift.egit.internal.test.EGitTestSuite)
Failing for the past 1 build (Since Unstable#35 )
java.lang.AssertionError: null
at org.junit.Assert.fail(Assert.java:86)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertTrue(Assert.java:52)
at org.jboss.tools.openshift.egit.internal.test.EGitUtilsTest.changedButNotCommittedIsDirty(EGitUtilsTest.java:314)