public synchronized void start()

in 3-extensions/serialization/dubbo-samples-protobuf-json/protobuf-json-serialization-demo/src/main/java/org/apache/dubbo/sample/protobuf/provider/EmbeddedZooKeeper.java [166:172]

• 7 lines of code
• 2 McCabe index (conditional complexity)

    public synchronized void start() {
        if (zkServerThread == null) {
            zkServerThread = new Thread(new ServerRunnable(), "ZooKeeper Server Starter");
            zkServerThread.setDaemon(daemon);
            zkServerThread.start();
        }
    }