private final boolean permanent;

    private long startTime;

    private int status = ACTIVE;

    TimeoutTask(final TimeoutTarget timeoutTarget, final int timeout, final boolean permanent) {
        this.timeoutTarget = timeoutTarget;
        this.timeoutMillis = timeout * 1000L;
        this.permanent = permanent;
        this.startTime = System.currentTimeMillis();
    }

    /**
     * 期限切れかどうかを返します。
     *

     *
     * @param timeoutTarget target
     * @param timeout timeout
     * @param permanent permanent
     * @return {@link TimeoutTask}
     */
    public synchronized TimeoutTask addTimeoutTarget(final TimeoutTarget timeoutTarget, final int timeout, final boolean permanent) {
        final TimeoutTask task = new TimeoutTask(timeoutTarget, timeout, permanent);
        timeoutTaskList.addLast(task);
        start();