* (non-Javadoc)
* @see com.ericsson.ssa.sip.LifeCycle#activate()
*/
public boolean activate() {
// Add to active cache
SipSessionManager mgr = getSipSessionManager();
if (mgr != null) {
ServletTimer st = mgr.addServletTimer(this);
if (st != null) {
// While this thread has been in the process of loading the
// requested ServletTimer, and is now trying to activate it,
// another thread has also loaded the same ServletTimer, and