* @return
*/
static SipApplicationSessionImpl
getApplicationSession(SipServletRequestImpl request,
SipApplicationRouterInfo info) {
SessionTarget st = request.getSessionTarget();
if (st != null && (request.getSessionImpl() == null)) {
SipApplicationSessionImpl sas = st.getApplicationSessionImpl();
if (sas != null && sas.isValid()) {
String app = info.getNextApplicationName();
if (app != null && app.equals(sas.getApplicationName())) {
return sas;
}