* @return exit code of the destroyed process, or -1 if the process was not found
     */
    public synchronized int destroyProcess(final String sessionId) {
        final JobProcess jobProcess = runningProcessMap.remove(sessionId);
        return destroyProcess(sessionId, jobProcess);
    }

    /**
     * Checks if any processes are currently running.
     *

        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {
            jobExecutor.addShutdownListener(() -> ComponentUtil.getProcessHelper().destroyProcess(sessionId));
        }

        final TimeoutTask timeoutTask = createTimeoutTask();
        try {
            executePython();
        } catch (final Exception e) {

        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {
            jobExecutor.addShutdownListener(() -> ComponentUtil.getProcessHelper().destroyProcess(sessionId));
        }

        final TimeoutTask timeoutTask = createTimeoutTask();
        try {
            executeSuggestCreator();
        } catch (final Exception e) {

        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {
            jobExecutor.addShutdownListener(() -> ComponentUtil.getProcessHelper().destroyProcess(sessionId));
        }

        final TimeoutTask timeoutTask = createTimeoutTask();
        try {
            executeThumbnailGenerator();
        } catch (final Exception e) {

            }
            resultBuf.append('\n');
        }

        if (jobExecutor != null) {
            jobExecutor.addShutdownListener(() -> ComponentUtil.getProcessHelper().destroyProcess(sessionId));
        }

        final TimeoutTask timeoutTask = createTimeoutTask();
        try {
            executeCrawler();
            ComponentUtil.getKeyMatchHelper().update();

        }
        return TimeoutManager.getInstance().addTimeoutTarget(() -> {
            logger.warn("Process terminated: timeout={}s exceeded", timeout);
            ComponentUtil.getProcessHelper().destroyProcess(sessionId);
            processTimeout = true;
        }, timeout, false);
    }

    /**
     * Creates and stores system properties to the specified file.