} finally {
            if (task != null) {
                task.cancel();
            }
            if (p != null && p.isAlive()) {
                logger.warn("Process {} is still alive in finally block. Forcing destruction.", p);
                if (task == null) {
                    task = new ProcessDestroyer(p, ist, commandDestroyTimeout);

        } catch (final Throwable t) {
            logger.error("Crawler terminated unexpectedly.", t);
            exitCode = Constants.EXIT_FAIL;
        } finally {
            if (commandThread != null && commandThread.isAlive()) {
                commandThread.interrupt();
            }
            if (systemMonitorTask != null) {
                systemMonitorTask.cancel();
            }
            if (hotThreadMonitorTask != null) {