public static void killAWTThreads(ThreadGroup threadGroup) {
Thread[] threadList = new Thread[threadGroup.activeCount()];
threadGroup.enumerate(threadList);
for (int i = 0; i < threadList.length; i++) {
Thread t = threadList[i];
if (t != null) {
String name = t.getName();
if (name.startsWith("AWT")) {
out("Interrupting thread '".concat(t.toString()).concat("'"));
t.interrupt();
}
}
}
if (threadGroup.getParent() != null) {
killAWTThreads(threadGroup.getParent());
}
}
public static void dumpThreads(ThreadGroup threadGroup, String indent) {
Thread[] threadList = new Thread[threadGroup.activeCount()];
threadGroup.enumerate(threadList);
for (int i = 0; i < threadList.length; i++) {
Thread t = threadList[i];
if (t != null) {
out(
indent
.concat("active thread = ")
.concat(t.toString())
.concat(", daemon = ")
.concat(String.valueOf(t.isDaemon())));
}
}
if (threadGroup.getParent() != null) {
dumpThreads(threadGroup.getParent(), indent + "\t");
}
}
private static void runExecutionBoundedTest(int nthreads, List<Counter> counters, int nexecutions)
throws InterruptedException {
final List<CounterThread> threads = new ArrayList<CounterThread>();
for (int i = 0; i < nthreads; i++) {
CounterThread t;
t = new CounterThread(counters.get(i % counters.size()), nexecutions);
t.start();
threads.add(t);
}
CounterThread.shoot(); // let all the threads go crazy at the same time
for (int i = 0; i < nthreads; i++) {
CounterThread t = threads.get(i);
t.join(30000);
if (t.isAlive()) {
System.out.println("stuck thread name: " + t.toString());
System.out.println("stuck thread state: " + t.getState());
safe.ReentrantLock l = (safe.ReentrantLock) t.getLock();
System.out.println("thread waiting lock: " + l);
System.out.println("stuck thread increments: " + t.getExecutions());
System.out.println("stuck thread counter value: " + t.getCounterCount());
Thread other = l.getOwner();
System.out.println("lock owner: " + other);
if (other != null) {
System.out.println("owner name: " + other.toString());
System.out.println("state owner: " + other.getState());
}
// Keep program alive to dump thread stacks with: jstack -l $(pidof java)
System.out.println(
java.lang.management.ManagementFactory.getThreadMXBean().getPeakThreadCount());
while (true) {}
}
}
long sum = 0;
for (int i = 0; i < counters.size(); ++i) {
sum += counters.get(i).getCount();
}
System.out.println(sum);
System.out.println(
java.lang.management.ManagementFactory.getThreadMXBean().getPeakThreadCount());
}
private String currentThread(Thread t_) {
if (t_ == null) t_ = Thread.currentThread();
return t_.toString();
}