public static boolean isBean(Class<?> clazz) {
		return hasSetter(clazz) || hasPublicField(clazz);
	}
@Test
	public void isBeanTest() {

		// HashMap不包含setXXX方法，不是bean
		final boolean isBean = BeanUtil.isBean(HashMap.class);
		assertFalse(isBean);
	}