public boolean cancel(boolean mayInterruptIfRunning) {
if (future == null)
throw new UnsupportedOperationException(
"You cannot cancel this task before calling future()");
return future.cancel(mayInterruptIfRunning);
}
protected <T> T timedCall(Callable<T> c, long timeout, TimeUnit timeUnit)
throws InterruptedException, ExecutionException, TimeoutException {
FutureTask<T> task = new FutureTask<T>(c);
try {
THREAD_POOL.execute(task);
return task.get(timeout, timeUnit);
} finally {
task.cancel(true);
}
}
