QPID-5993 : Fix more findbugs found issues

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617822 13f79535-47bb-0310-9956-ffa450edef68
QPID-5995: Initialize messaging SenderContext delivery tag

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617841 13f79535-47bb-0310-9956-ffa450edef68
QPID-5993 : Fix more findbugs found issues

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617847 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: Remove unused test support classes

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617894 13f79535-47bb-0310-9956-ffa450edef68
QPID-5991: [Java System Tests]  BDB HA System Test Improvements

* Change failover url so that algorithm for cases where we expect a connection to the broker checks each broker once
  per cycle rather than twice successively.  Doubled the number of cycles and reduced the connect delay so that
  test discover the master node more quickly.
* Use separate negative failover url when expectation is that group will refuse connection.
* Remove duplicated test
* In TwoNodeTest use REST API only.   JMXManagementTest now has sole responsibility for testing HA using the JMX bean.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617895 13f79535-47bb-0310-9956-ffa450edef68
[no jira]: fixing commit 1617841 that broke building (unreliable to be initialized after nextId)

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617897 13f79535-47bb-0310-9956-ffa450edef68
QPID-5996 : [Java Build] Coverage reports are not being produced

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617908 13f79535-47bb-0310-9956-ffa450edef68
QPID-5985: fixed regression introduced by previous commit (r1617256), ensuring that call does not block indefinitely

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617924 13f79535-47bb-0310-9956-ffa450edef68