docs: public static Map<String, PropertyDescriptor> getPropertyDescriptorMap(Class<?> clazz, boolean ignoreCase) throws BeanException {
  		Map<String, PropertyDescriptor> map = BeanInfoCache.INSTANCE.getPropertyDescriptorMap(clazz, ignoreCase);
  		if (null == map) {
  			map = internalGetPropertyDescriptorMap(clazz, ignoreCase);
  			BeanInfoCache.INSTANCE.putPropertyDescriptorMap(clazz, map, ignoreCase);
  		}
  		return map;
  	}