Unittest testVisitUploadMessage fails once in a while in jenkins

dk.netarkivet.archive.bitarchive.distribute.BitarchiveServerTester.testVisitUploadMessage
Failing for the past 1 build (Since Unstable#639 )
Took 0.11 sec.
Error Message

Number of listeners on queue [Queue 'DEV_TWO_ANY_BA'] should be 1 before upload. expected:<1> but was:<0>

Stacktrace

java.lang.AssertionError: Number of listeners on queue [Queue 'DEV_TWO_ANY_BA'] should be 1 before upload. expected:<1> but was:<0>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:743)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:555)
	at dk.netarkivet.archive.bitarchive.distribute.BitarchiveServerTester.testVisitUploadMessage(BitarchiveServerTester.java:184)