Lorenz Quack created QPID-6957:
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Summary: [Java Tests] LastValueQueueTest sporadically fails on cpp
profile
Key: QPID-6957
URL: https://issues.apache.org/jira/browse/QPID-6957
Project: Qpid
Issue Type: Bug
Components: Java Tests
Reporter: Lorenz Quack
Assignee: Lorenz Quack
On the cpp profile the LastValueQueueTest sporadically fails because the
semantics of LVQs for messages without a defined key differ from the Java
broker's.
The Java broker
[specifies|https://qpid.apache.org/releases/qpid-0.32/java-broker/book/Java-Broker-Management-Managing-Queues.html#Java-Broker-Management-Managing-Queues-Types-LVQ]
that: {quote}Messages sent to an LVQ without the specified property will be
delivered as normal and will never be "replaced".{quote}
The C++ broker does not document its behaviour in this case but seems to treat
messages that do not set a key as having the same key.
Therefore, the shutdown messages in
o.a.q.s.q.LastValueQueueTest#testParallelProductionAndConsumption replace each
other and the second (or rather the first) message is never received by the
consumer leading to a NPE:
{noformat}
testParallelProductionAndConsumption(org.apache.qpid.server.queue.LastValueQueueTest)
Time elapsed: 10.571 sec <<< FAILURE!
junit.framework.AssertionFailedError: null
at junit.framework.Assert.fail(Assert.java:55)
at junit.framework.Assert.assertTrue(Assert.java:22)
at junit.framework.Assert.assertNotNull(Assert.java:256)
at junit.framework.Assert.assertNotNull(Assert.java:248)
at junit.framework.TestCase.assertNotNull(TestCase.java:417)
at
org.apache.qpid.server.queue.LastValueQueueTest.receiveMessages(LastValueQueueTest.java:442)
at
org.apache.qpid.server.queue.LastValueQueueTest.testParallelProductionAndConsumption(LastValueQueueTest.java:405)
{noformat}
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