QPID-4608 Moved the exception handling code to a method. The method also
checks for authorization denied exceptions and throws a
JMSSecurityException instead of a regular JMSException. This allows
applications that are specifically looking for authorization failures to
handle that situation.There will not be any changes required for other
applications.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1451047 13f79535-47bb-0310-9956-ffa450edef68