final ClassLoader orignal = currentThread.getContextClassLoader();
            currentThread.setContextClassLoader(CommonPoolUtil.class.getClassLoader());
            try {
                task.run();
            } catch (final Exception e) {
                logger.error("Uncaught exception from " + task, e);
            } finally {
                currentThread.setContextClassLoader(orignal);
            }

     *
     * @return 管理している {@link TimeoutTask}の数
     */
    public synchronized int getTimeoutTaskCount() {
        return timeoutTaskList.size();
    }

    @Override
    public void run() {
        int nThreads = Runtime.getRuntime().availableProcessors() / 2;
        final String value = System.getProperty("corelib.timeout_task.num_of_threads");
        if (StringUtil.isNotBlank(value)) {
            try {