Description of problem:
CalendarBasedTimeoutTestCase rarely fails mostly on RHEL6 w/ OpenJDK

Version-Release number of selected component (if applicable):
EAP 6.3.1.CP.CR1 (but I don't think that it appears now)

Actual results:
java.lang.AssertionError: Eastern European Time
	at org.junit.Assert.fail(Assert.java:88)
	at org.jboss.as.ejb3.timer.schedule.CalendarBasedTimeoutTestCase.testWithStartInThePast(CalendarBasedTimeoutTestCase.java:539)
	at org.jboss.as.ejb3.timer.schedule.CalendarBasedTimeoutTestCase.testCalendarBasedTimeout(CalendarBasedTimeoutTestCase.java:129)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:234)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:133)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:114)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:188)
	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:166)
	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:86)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:101)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)

Additional info:
e.g. https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap-63x-patched-testsuite-rhel/jdk=openjdk1.7_local,label_exp=eap-sustaining%20&&%20RHEL6%20&&%20x86_64/9/testReport/org.jboss.as.ejb3.timer.schedule/CalendarBasedTimeoutTestCase/testCalendarBasedTimeout/