public void stop() {
synchronized (handlers) {
List<Exception> exceptions = Lists.newArrayList();
for (Stage stage : Lists.reverse(stagesOrdered())) {
final CopyOnWriteArrayList<Handler> stageHandlers = handlers.get(stage);
final ListIterator<Handler> iter = stageHandlers.listIterator(stageHandlers.size());
while (iter.hasPrevious()) {
final Handler handler = iter.previous();
try {
handler.stop();
} catch (Exception e) {
log.warn(e, "exception thrown when stopping %s", handler);
exceptions.add(e);
}
}
}
started.set(false);
if (!exceptions.isEmpty()) {
throw Throwables.propagate(exceptions.get(0));
}
}
}
