* full handshake with fresh session.
*/
if (!(handshake instanceof FragmentedHandshakeMessage)) {
// check if session identifier set
ClientHello clientHello = (ClientHello) handshake;
session = getSessionByIdentifier(clientHello.getSessionId().getSessionId());
}
if (session == null) {
// create new session
session = new DTLSSession(peerAddress, false);