final BeanDesc beanDesc = new BeanDescImpl(MyBean.class);
        final ConstructorDesc ctor = beanDesc.getConstructorDesc();
        assertThat(ctor, is(notNullValue()));
        assertThat(ctor.getBeanDesc(), is(sameInstance(beanDesc)));
        assertThat(ctor.getConstructor(), is((Constructor) MyBean.class.getConstructor()));
        assertThat(ctor.getParameterTypes().length, is(0));
        assertThat(ctor.isPublic(), is(true));

        final BeanDesc beanDesc = new BeanDescImpl(MyBean.class);
        final MethodDesc foo = beanDesc.getMethodDesc("foo");
        assertThat(foo, is(notNullValue()));
        assertThat(foo.getBeanDesc(), is(sameInstance(beanDesc)));
        assertThat(foo.getMethod(), is(MyBean.class.getMethod("foo")));
        assertThat(foo.getMethodName(), is("foo"));
        assertThat(foo.getParameterTypes().length, is(0));

        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(MyBean.class);
        assertThat(BeanDescFactory.getBeanDesc(MyBean.class), is(sameInstance(beanDesc)));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testClear() throws Exception {
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(MyBean.class);
        BeanDescFactory.clear();

        assertArgumentNotNull("annotation", annotation);

        final Map<String, Object> map = newHashMap();
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(annotation.annotationType());
        for (final String name : beanDesc.getMethodNames()) {
            final Object v = getProperty(beanDesc, annotation, name);
            if (v != null) {
                map.put(name, v);

/**
 * This class generates {@link BeanDesc}.
 * <p>
 * It returns a {@link BeanDesc} that handles the metadata of the specified JavaBeans.
 * </p>
 *
 * <pre>
 * BeanDesc beanDesc = BeanDescFactory.getBeanDesc(Foo.class);
 * </pre>
 * <p>
 * {@link BeanDesc} is cached. To clear the cache, call {@link DisposableUtil#dispose()}.
 * </p>
 *
 * @author higa
 * @see BeanDesc
 * @see DisposableUtil
 */

        }
        parameterizedClassDesc = ParameterizedClassDescFactory.createParameterizedClassDesc(method, beanDesc.getTypeVariables());
    }

    @Override
    public BeanDesc getBeanDesc() {
        return beanDesc;
    }

    @Override
    public Method getMethod() {
        return method;
    }

    @Override
    public String getMethodName() {
        return methodName;
    }

     */
    @Test
    public void testHOGE() throws Exception {
        final BeanDesc beanDesc = new BeanDescImpl(MyBean.class);
        final FieldDesc hoge = beanDesc.getFieldDesc("HOGE");
        assertThat(hoge.getBeanDesc(), is(sameInstance(beanDesc)));
        assertThat(hoge.getField(), is(MyBean.class.getDeclaredField("HOGE")));
        assertThat(hoge.getFieldName(), is("HOGE"));

 * @author koichik
 */
public interface ConstructorDesc {

    /**
     * Returns the {@link BeanDesc} of the class that owns this constructor.
     *
     * @return {@link BeanDesc}
     */
    BeanDesc getBeanDesc();

    /**
     * Returns the constructor.
     *
     * @param <T>
     *            The type of the Bean
     * @return The constructor
     */
    <T> Constructor<T> getConstructor();

    /**

 *
 * @author koichik
 */
public interface FieldDesc {

    /**
     * Returns the {@link BeanDesc} of the class that owns this field.
     *
     * @return {@link BeanDesc}
     */
    BeanDesc getBeanDesc();

    /**
     * Returns the field.
     *
     * @return the field
     */
    Field getField();

    /**
     * Returns the field name.
     *
     * @return the field name
     */

     * @return the converted value
     */
    <T> T convertIfNeed(Object value);

    /**
     * Returns the {@link BeanDesc}.
     *
     * @return the {@link BeanDesc}
     */
    BeanDesc getBeanDesc();

    /**
     * Returns {@literal true} if this property is parameterized.
     *
     * @return {@literal true} if this property is parameterized
     */
    boolean isParameterized();

    /**