rs are called if the values differ or are expressed as request-time
 attribute values.
 <li>Check the TryCatchFinally interface for additional details related to exception handling and resource management.
 </ul>

 <IMG src="doc-files/TagProtocol.gif" alt="Lifecycle Details Transition Diagram for Tag">
 
 <p>
 Once all invocations on the tag handler are completed, the release method is invoked on it. Once a release method is
 invoked <em>all</em> properties, including parent and pageContext, are assumed to 