Description
org.apache.qpid.test.client.message.SelectorTest#testSelectorWithJMSMessageID fails because the broker is not able to properly evaluate the selector "JMSMessageID IS NULL" when using 0-10, and so incorrectly fails to deliver messages to the client.
This is due to the use of String.valueOf() when converting the UUID for the message ID into a String, meaning that instead of a null reference value, the string "null" is returned.