public void initialize(int rpcListenPort) {
        if (isInitialized) {
            throw new IllegalStateException(APPNAME + " already initialized");
        }

        // plugins
        registerPluginLoader(new BuiltinPluginLoader());

        rpcServer = new RpcServer(rpcListenPort);
        rpcServer.addMethod(new ArchiveLogMessagesMethod(dispatch).methodDefinition());
    }
Initialize the server and start up all its plugins,
logserver/src/main/java/com/yahoo/logserver/Server.java