for (int i = 0; i < standaloneServerFactoryList.size(); i++) {
NIOServerCnxnFactory standaloneServerFactory =
standaloneServerFactoryList.get(i);
int clientPort = clientPortList.get(i);
standaloneServerFactory.shutdown();
if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
throw new IOException("Waiting for shutdown of standalone server");
}
}
for (ZooKeeperServer zkServer: zooKeeperServers) {