*/
public void destroy() throws Exception {
super.destroy();
SipSessionManager sipSessMgr = getSipSessionManager();
if (sipSessMgr != null) {
sipSessMgr.release();
sipSessMgr = null;
}
sipSessionManager = null; // required to release sessionmanager.
lifecycle = null; // required to release servletdispatcher.
pipeline = null; // required to release servletdispatcher.