op.get(ADMIN_ONLY).set(false);
result = executeOperation(op);
// wait until the server is in normal mode
rte = new RetryTaskExecutor();
rte.retryTask(new Callable<ModelNode>() {
public ModelNode call() throws Exception {
ModelNode rop = createOpNode(null, READ_ATTRIBUTE_OPERATION);
rop.get(NAME).set("running-mode");
ModelNode mode = executeOperation(rop);
if (! mode.asString().equals("NORMAL")) throw new Exception ("Wrong mode.");