}

    /**
     * 管理している {@link TimeoutTask}の数を返します。
     *
     * @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");

        map = new CaseInsensitiveMap<>(initialCapacity);
    }

    @Override
    public Iterator<String> iterator() {
        return map.keySet().iterator();
    }

    @Override
    public int size() {
        return map.size();
    }

    @Override
    public boolean isEmpty() {
        return map.isEmpty();
    }

    @Override
    public boolean contains(final Object o) {
        return map.containsKey(o);

    }

    /**
     * Returns the number of elements in this set (its cardinality).
     *
     * @return the number of elements in this set (its cardinality).
     */
    @Override
    public int size() {
        return map.size();
    }

    /**
     * Returns true if this set contains no elements.
     *
     * @return true if this set contains no elements.
     */
    @Override
    public boolean isEmpty() {

    }

    @Override
    public Object setProperty(final String key, final String value) {
        return getProperties().setProperty(key, value);
    }

    @Override
    public int size() {
        return getProperties().size();
    }

    @Override
    public void store(final OutputStream out, final String comments) throws IOException {
        getProperties().store(out, comments);
    }

    @Override

    public void testIncludes() throws Exception {
        final CopyOptions option = new CopyOptions();
        assertThat(option.include(BeanNames.hoge()), is(sameInstance(option)));
        assertThat(option.includePropertyNames.size(), is(1));
        assertThat(option.includePropertyNames.get(0), is("hoge"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testExcludes() throws Exception {

     */
    public static boolean isNumber(final String s) {
        if (isEmpty(s)) {
            return false;
        }

        final int size = s.length();
        for (int i = 0; i < size; i++) {
            final char chr = s.charAt(i);
            if (chr < '0' || '9' < chr) {
                return false;
            }
        }

        return true;
    }