return;
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Closing HTTP client...");
        }
        if (connectionMonitorTask != null) {
            connectionMonitorTask.cancel();
            if (logger.isDebugEnabled()) {
                logger.debug("Connection monitor task cancelled");
            }
        }
        if (httpClient != null) {
            try {

    secondBarrier.await();
    firstBarrier.await();
    assertEquals(2, scheduler.scheduleCounter.get());
    shouldWait.set(false);
    secondBarrier.await();
    future.cancel(false);
  }

  public void testCustomSchedulerServiceStop() throws Exception {
    TestAbstractScheduledCustomService service = new TestAbstractScheduledCustomService();
    service.startAsync().awaitRunning();

    secondBarrier.await();
    firstBarrier.await();
    assertEquals(2, scheduler.scheduleCounter.get());
    shouldWait.set(false);
    secondBarrier.await();
    future.cancel(false);
  }

  public void testCustomSchedulerServiceStop() throws Exception {
    TestAbstractScheduledCustomService service = new TestAbstractScheduledCustomService();
    service.startAsync().awaitRunning();

        }
    }

    /**
     * Stop proactive health checking
     */
    public void stopProactiveHealthChecking() {
        if (healthCheckTask != null) {
            healthCheckTask.cancel(false);
            healthCheckTask = null;
            log.info("Stopped proactive health checking");
        }
    }

    /**
     * Perform proactive health check on all connections
     */

            throw new JobProcessingException("Failed to execute a crawl job.", e);
        } finally {
            if (timeoutTask != null && !timeoutTask.isCanceled()) {
                timeoutTask.cancel();
            }
        }

        return resultBuf.toString();

    }

    /**
     * Gets the count of currently running crawler jobs.

        execJob.timeout = 10;
        execJob.sessionId = "test-session";
        TimeoutTask task = execJob.testCreateTimeoutTask();
        assertNotNull(task);

        // Clean up timeout task
        task.cancel();
    }

    // Test createSystemProperties method
    @Test
    public void test_createSystemProperties() throws IOException {
        List<String> cmdList = new ArrayList<>();
        cmdList.add("test");

    }

    /**
     * Close circuit breaker and cleanup resources
     */
    public void close() {
        if (thresholdAdjustmentTask != null) {
            thresholdAdjustmentTask.cancel(false);
        }
        if (scheduler != null) {
            scheduler.shutdown();
        }
        log.info("[{}] Circuit breaker closed and resources cleaned up", name);
    }

        }
    }

    /**
     * Stops the poll loop and removes the heartbeat document on shutdown.
     */
    @PreDestroy
    public void destroy() {
        if (pollTask != null) {
            pollTask.cancel();
        }
        try {
            removeHeartbeat();
        } catch (final Exception e) {
            logger.debug("Failed to remove heartbeat on shutdown.", e);
        }

            if (accessTimeoutTarget != null) {
                accessTimeoutTarget.stop();
                if (accessTimeoutTask != null && !accessTimeoutTask.isCanceled()) {
                    accessTimeoutTask.cancel();
                }
            }
        }
    }

    /**
     * Retrieves response data from the FTP server for the specified URI.

        set(newValue);
      } else {
        // The pending load was removed. Delay notifications until loading completes.
        oldValue = unset();
      }

      // TODO(fry): could also cancel loading if we had a handle on its future
    }

    public ListenableFuture<V> loadFuture(K key, CacheLoader<? super K, V> loader) {
      try {
        stopwatch.start();