/** @param handler Set the {@link Handler} which should be wrapped. */
public void setHandler(Handler handler) {
if (isStarted()) throw new IllegalStateException(STARTED);
if (handler != null) handler.setServer(getServer());
updateBean(_handler, handler);
_handler = handler;
}
/* ------------------------------------------------------------ */
@Override
public void setServer(Server server) {
if (server == getServer()) return;
if (isStarted()) throw new IllegalStateException(STARTED);
super.setServer(server);
Handler h = getHandler();
if (h != null) h.setServer(server);
}