*
     * @param clazz the class (must not be {@literal null})
     * @param includeObject if {@literal true}, includes the {@link Object} class in the iteration
     */
    public ClassIterator(final Class<?> clazz, final boolean includeObject) {
        assertArgumentNotNull("clazz", clazz);
        assertArgument("clazz", !clazz.isInterface(), MessageFormatter.getSimpleMessage("ECL0103", clazz));

        this.clazz = clazz;

 * @author koichik
 */
public abstract class TestUtil {

    /**
     * 実際の値が期待する{@literal clazz}と等しいかを検証する{@link Matcher}を返します。
     *
     * <pre>assertThat(clazz, is(Xxx.class));</pre>
     * <p>
     * と書くと{@link CoreMatchers#is(Class)}が適用されて{@literal clazz}が {@literal Xxx}
     * のインスタンスかを検証されてしまうのでこれが必要。
     *
     * @param clazz
     *            期待するクラス
     * @return クラスをチェックする{@link Matcher}
     */

     * @param value The object to convert.
     * @param clazz The class type to convert to.
     * @return The converted object.
     */
    @SuppressWarnings("unchecked")
    protected <T> T convertObj(final Object value, final Class<T> clazz) {
        if (clazz.isAssignableFrom(String.class)) {
            return (T) value.toString();
        }
        if (clazz.isAssignableFrom(Long.class)) {

            return null;
        }
        return new DecimalFormat(pattern).format(value);
    }

    @Override
    public boolean isTarget(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);
        return Number.class.isAssignableFrom(clazz);
    }

            return null;
        }
        return StringConversionUtil.toString((Date) value, pattern);
    }

    @Override
    public boolean isTarget(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);
        return clazz == java.sql.Timestamp.class;
    }

        Class<SessionSetupHandler> clazz = SessionSetupHandler.class;

        // Assert
        assertTrue(clazz.isInterface(), "Should be an interface");
        assertTrue(Modifier.isPublic(clazz.getModifiers()), "Interface should be public");
        assertEquals("jcifs.smb", clazz.getPackageName(), "Package must match source");
        assertEquals("SessionSetupHandler", clazz.getSimpleName(), "Simple name must match source");
    }

                return null;
            }

            return convertObj(((List<?>) value).get(0), clazz);
        }
        if (value instanceof String[]) {
            if (clazz.isAssignableFrom(String[].class)) {
                return (T) value;
            }
            if (clazz.isAssignableFrom(List.class)) {
                final List<String> list = new ArrayList<>();

  }

  @SuppressWarnings("unchecked")
  private static Class<? extends Annotation> asAnnotation(Class<?> clazz) {
    if (clazz.isAnnotation()) {
      return (Class<? extends Annotation>) clazz;
    } else {
      throw new IllegalArgumentException(rootLocaleFormat("%s is not an annotation.", clazz));
    }
  }

  public void testFeatureEnums() throws Exception {
    assertGoodFeatureEnum(CollectionFeature.class);

  }

  @SuppressWarnings("unchecked")
  private static Class<? extends Annotation> asAnnotation(Class<?> clazz) {
    if (clazz.isAnnotation()) {
      return (Class<? extends Annotation>) clazz;
    } else {
      throw new IllegalArgumentException(rootLocaleFormat("%s is not an annotation.", clazz));
    }
  }

  public void testFeatureEnums() throws Exception {
    assertGoodFeatureEnum(CollectionFeature.class);

     *
     * @param clazz
     *            the Bean class. Must not be {@literal null}
     * @return {@link BeanDesc}
     */
    public static BeanDesc getBeanDesc(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

        if (!initialized) {
            initialize();
        }
        BeanDesc beanDesc = beanDescCache.get(clazz);
        if (beanDesc == null) {