Grails - Error Server failed to start for port 8080: Address already in use

% grails run-app 
:run
| Loading Grails 2.4.4
| Configuring classpath
| Running pre-compiled script
| Environment set to development
| Packaging Grails application
| Running Grails application
| Error Server failed to start for port 8080: Address already in use (Use --stacktrace to see the full trace)

コマンドを実行

% lsof -w -n -i tcp:8080 
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 3571 spacenet 27u IPv6 2469651 0t0 TCP *:http-alt (LISTEN)

プロセスをキルする

% kill -9 3571

もう一回 run-app すればOK

% grails run-app
:run
| Loading Grails 2.4.4
| Configuring classpath

| Running pre-compiled script.
| Environment set to development
| Packaging Grails application
| Running Grails application

| Server running. Browse to http://localhost:8080/