How are you trying to stop them? Thread.stop? Be warned that this method is out of date.
Instead, consider using a flag for thread 1 to communicate with threads 2 and 3, which they should stop. In fact, you could use interrupts .
Thread.interrupt .
final Thread subject1 = new Thread(new Runnable() {
public void run() {
while (!Thread.interrupted()) {
Thread.yield();
}
System.out.println("subject 1 stopped!");
}
});
final Thread subject2 = new Thread(new Runnable() {
public void run() {
while (!Thread.interrupted()) {
Thread.yield();
}
System.out.println("subject 2 stopped!");
}
});
final Thread coordinator = new Thread(new Runnable() {
public void run() {
try {
Thread.sleep(500);
} catch (InterruptedException ex) { }
System.out.println("coordinator stopping!");
subject1.interrupt();
subject2.interrupt();
}
});
subject1.start();
subject2.start();
coordinator.start();
volatile boolean ( AtomicBoolean) .
, volatile java.util.concurrent.atomic.*, , .
final AtomicBoolean running = new AtomicBoolean(true);
final ExecutorService subjects = Executors.newFixedThreadPool(2);
subjects.submit(new Runnable() {
public void run() {
while (running.get()) {
Thread.yield();
}
System.out.println("subject 1 stopped!");
}
});
subjects.submit(new Runnable() {
public void run() {
while (running.get()) {
Thread.yield();
}
System.out.println("subject 2 stopped!");
}
});
final ScheduledExecutorService coordinator = Executors.newSingleThreadScheduledExecutor();
coordinator.schedule(new Runnable() {
public void run() {
System.out.println("coordinator stopping!");
running.set(false);
subjects.shutdown();
coordinator.shutdown();
}
}, 500, TimeUnit.MILLISECONDS);
, , AtomicBoolean, , :
static volatile boolean running = true;
, ExecutorService s, :
final ExecutorService subjects = Executors.newFixedThreadPool(2);
subjects.submit(new Runnable() {
public void run() {
while (!Thread.interrupted()) {
Thread.yield();
}
System.out.println("subject 1 stopped!");
}
});
subjects.submit(new Runnable() {
public void run() {
while (!Thread.interrupted()) {
Thread.yield();
}
System.out.println("subject 2 stopped!");
}
});
final ScheduledExecutorService coordinator = Executors.newSingleThreadScheduledExecutor();
coordinator.schedule(new Runnable() {
public void run() {
System.out.println("coordinator stopping!");
subjects.shutdownNow();
coordinator.shutdown();
}
}, 500, TimeUnit.MILLISECONDS);
, ThreadPoolExecutor.shutdownNow , .
, - :
C:\dev\scrap>javac CoordinationTest.java
C:\dev\scrap>java CoordinationTest
coordinator stopping!
subject 1 stopped!
subject 2 stopped!
, .