public void start() throws LifecycleException {
// Use fast, insecure session ID generation for all tests
Server server = getServer();
for (Service service : server.findServices()) {
Container e = service.getContainer();
for (Container h : e.findChildren()) {
for (Container c : h.findChildren()) {
Manager m = ((Context) c).getManager();
if (m == null) {
m = new StandardManager();
((Context) c).setManager(m);