isRunning
while (consumer.isRunning() && !done.get()) {
} while (consumer.isRunning() && n++ < INTERVALS);
if (!consumer.isRunning()) {
if (!consumer.isRunning()) {
consumer.isRunning());
consumer.isRunning());
System.out.println("before go, running: " + consumer.isRunning());
System.out.println("after stop, running: " + consumer.isRunning());
consumer.isRunning();
} while (consumer.isRunning());
buf.append(isRunning());