@Override
public void execute(Runnable runnable) {
if (runnable == null) {
throw new NullPointerException();
}
boolean[] hasWaiterMarker = new boolean[1];
if ((_runState == _RUNNING) && _taskQueue.offer(runnable, hasWaiterMarker)) {
if (_runState != _RUNNING) {
if (_taskQueue.remove(runnable)) {
_rejectedExecutionHandler.rejectedExecution(runnable, this);
}
return;
}
if (!hasWaiterMarker[0]) {
_addWorkerThread();
}
return;
}
_rejectedExecutionHandler.rejectedExecution(runnable, this);
}