if (jobProcess != null) {
            final InputStreamThread ist = jobProcess.getInputStreamThread();
            try {
                ist.interrupt();
            } catch (final Exception e) {
                logger.warn("Could not interrupt a thread of an input stream.", e);
            }

            final CountDownLatch latch = new CountDownLatch(3);
            final Process process = jobProcess.getProcess();

        joinThread(q1x);
        interruptThreadSafely(q20);
        joinThread(q20);
    }


    private static void interruptThreadSafely ( QueryThread thread ) {
        try {
            thread.interrupt();
        }
        catch ( SecurityException e ) {
            e.printStackTrace();
        }
    }


    private static void joinThread ( Thread thread ) {
        try {

            executor.awaitTermination(executorTerminationTimeout, TimeUnit.SECONDS);
        } catch (final InterruptedException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to interrupt executor.", e);
            }
        } finally {
            executor.shutdownNow();
        }

        if (!deleteUrlList.isEmpty()) {
            deleteDocuments();
        }

            exitCode = Constants.EXIT_FAIL;
        } finally {
            if (commandThread != null && commandThread.isAlive()) {
                commandThread.interrupt();
            }
            if (systemMonitorTask != null) {
                systemMonitorTask.cancel();
            }
            if (hotThreadMonitorTask != null) {
                hotThreadMonitorTask.cancel();

            }
        }
    }

    /**
     * 処理を停止します。
     */
    public synchronized void stop() {
        if (thread != null) {
            thread.interrupt();
            thread = null;
            if (logger.isDebugEnabled()) {
                logger.debug("TimeoutManager stopped.");
            }
        }
    }

    /**
     * スレッドに割り込みを行い、終了するまで待機します。

                    logger.debug("Interrupted.", e);
                }
            }
        }

        public void awaitTermination(final long mills) {
            try {
                join(mills);
            } catch (final InterruptedException e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Interrupted.", e);
                }
            }
        }

            executorService.awaitTermination(60, TimeUnit.SECONDS);
        } catch (final InterruptedException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Interrupted.", e);
            }
        } finally {
            executorService.shutdownNow();
        }
        return totalCount;
    }

        Thread t = this.thread;
        if ( t != null && Thread.currentThread() != t ) {
            this.thread = null;
            try {
                log.debug("Interrupting transport thread");
                t.interrupt();
                log.debug("Joining transport thread");
                t.join(timeout);
                log.debug("Joined transport thread");
            }
            catch ( InterruptedException e ) {

            }
        }, "ThumbnailGenerator");
        thumbnailQueueThread.start();
    }

    @PreDestroy
    public void destroy() {
        generating = false;
        thumbnailQueueThread.interrupt();
        try {
            thumbnailQueueThread.join(10000);
        } catch (final InterruptedException e) {
            logger.warn("Thumbnail thread is timeouted.", e);
        }

                try {
                    synchronized ( lock ) {
                        lock.wait(1000);
                    }

                    Thread.sleep(100);
                    t.interrupt();
                }
                catch ( InterruptedException e ) {
                    e.printStackTrace();
                }
            }
        });

        try {