>send</code> methods for an unidentified <code>QueueSender</code> will throw a
 <code>java.lang.UnsupportedOperationException</code>.

 <p>
 If the <code>QueueSender</code> is created with an unidentified <code>Queue</code>, an attempt to use the <code>send</code> methods
 that assume that the <code>Queue</code> has been identified will throw a <code>java.lang.UnsupportedOperationException</code>.

 <p>
 During the execution of its <code>send</code> method, a message must not be changed by other threads wit