*            フィールド
     * @param beanDesc
     *            {@link BeanDesc}。{@literal null}であってはいけません
     */
    public PropertyDescImpl(final String propertyName, final Class<?> propertyType, final Method readMethod, final Method writeMethod,
            final Field field, final BeanDesc beanDesc) {
        assertArgumentNotEmpty("propertyName", propertyName);
        assertArgumentNotNull("propertyType", propertyType);

         * @param bean2
         */
        public MyBean2(final int num, final String text, final MyBean bean1, final MyBean2 bean2) {
        }

        /**
         * @param i
         */
        public void setAaa(final int i) {
        }

        /**
         * @param s
         */
        public void setAaa(final String s) {
        }
    }

    /** */

        final BeanMap src = new BeanMap();
        src.put("aaa", "aaa");
        final MyBean dest = BeanUtil.copyMapToNewBean(src, MyBean.class);
        assertThat(dest.aaa, is("aaa"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testCopy_mapToNewMap() throws Exception {
        final BeanMap src = new BeanMap();
        src.put("aaa", "aaa");

     */
    protected Object convertValue(final Object value, final String destPropertyName, final Class<?> destPropertyClass) {
        if (value == null || value.getClass() != String.class && destPropertyClass != null && destPropertyClass != String.class) {
            return value;
        }
        Converter converter = converterMap.get(destPropertyName);
        if (converter == null) {
            final Class<?> targetClass;

        assertArgumentNotNull("src", src);
        assertArgumentNotNull("dest", dest);
        assertArgumentNotNull("option", options);

        final BeanDesc srcBeanDesc = BeanDescFactory.getBeanDesc(src.getClass());
        final BeanDesc destBeanDesc = BeanDescFactory.getBeanDesc(dest.getClass());

    /** 空のオブジェクト配列 */
    protected static final Object[] EMPTY_ARGS = new Object[0];

    /** 空のクラス配列 */
    protected static final Class<?>[] EMPTY_PARAM_TYPES = new Class<?>[0];

    /** Beanのクラス */
    protected final Class<?> beanClass;

    /** 型引数と型変数のマップ */
    protected final Map<TypeVariable<?>, Type> typeVariables;

    /** プロパティ名から{@link PropertyDesc}へのマップ */

     * @return 変換された{@link Date}
     */
    protected static Date toDate(final String str, final DateFormat format) {
        final ParsePosition pos = new ParsePosition(0);
        final Date date = format.parse(str, pos);
        if (date == null) {
            return null;
        }
        final int index = pos.getIndex();
        if (index == 0) {
            return null;
        }

    public static Traverser getTraverser(final Class<?> referenceClass) {
        assertArgumentNotNull("referenceClass", referenceClass);

        final URL url = ResourceUtil.getResource(toClassFile(referenceClass.getName()));
        final String[] path = referenceClass.getName().split("\\.");
        String baseUrl = url.toExternalForm();
        for (final String element : path) {
            final int pos = baseUrl.lastIndexOf('/');

    public void testList() throws Exception {
        final Method m1 = ListType.class.getMethod("listOfString");
        final Type t1 = m1.getGenericReturnType();
        assertThat(GenericsUtil.isTypeOf(t1, List.class), is(true));
        assertThat(GenericsUtil.getElementTypeOfList(t1), is(sameClass(String.class)));

        final Method m2 = ListType.class.getMethod("listOfClass");
        final Type t2 = m2.getGenericReturnType();

     * @return 変換された{@link Date}
     */
    protected static Date toDate(final String str, final DateFormat format) {
        final ParsePosition pos = new ParsePosition(0);
        final Date date = format.parse(str, pos);
        if (date == null) {
            return null;
        }
        final int index = pos.getIndex();
        if (index == 0) {
            return null;
        }