java.util.concurrent.ExecutorServiceの停止方法

まぁ、JavaDocに書いてあるんですが、すぐに「あれどこに書いてあったっけ？」と忘れるのでメモ。

executor.shutdown();
try {
    if (!executor.awaitTermination(60, TimeUnit.SECONDS)) {
        executor.shutdownNow();
        if (!executor.awaitTermination(60, TimeUnit.SECONDS)) {
            System.out.println("ExecutorService did not terminate");
        }
    }
} catch (InterruptedException e) {
    executor.shutdownNow();
    Thread.currentThread().interrupt();
}