// Private since we can't add a vtable slot in 4.1.x.
private void exitNoChecks(int status) {
if (runShutdownHooks()) exitInternal(status);
// Someone else already called runShutdownHooks().
// Make sure we are not/no longer in the shutdownHooks set.
// And wait till the thread that is calling runShutdownHooks() finishes.
synchronized (libpath) {
if (shutdownHooks != null) {
shutdownHooks.remove(Thread.currentThread());
// Interrupt the exit sequence thread, in case it was waiting
// inside a join on our thread.
exitSequence.interrupt();
// Shutdown hooks are still running, so we clear status to
// make sure we don't halt.
status = 0;
}
}
// If exit() is called again after the shutdown hooks have run, but
// while finalization for exit is going on and the status is non-zero
// we halt immediately.
if (status != 0) exitInternal(status);
while (true)
try {
exitSequence.join();
} catch (InterruptedException e) {
// Ignore, we've suspended indefinitely to let all shutdown
// hooks complete, and to let any non-zero exits through, because
// this is a duplicate call to exit(0).
}
}
/**
* Forcibly terminate the virtual machine. This call never returns. It is much more severe than
* <code>exit</code>, as it bypasses all shutdown hooks and initializers. Use caution in calling
* this! Of course, there is a security check, <code>checkExit(status)</code>.
*
* @param status the status to exit with
* @throws SecurityException if permission is denied
* @since 1.3
* @see #exit(int)
* @see #addShutdownHook(Thread)
*/
public void halt(int status) {
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null) sm.checkExit(status);
exitInternal(status);
}