code: public static List<UIParameter> getValidUIParameterChildren(
              FacesContext facesContext, List<UIComponent> children,
              boolean skipNullValue, boolean skipUnrendered)
      {
          return getValidUIParameterChildren(facesContext, children,
                  skipNullValue, skipUnrendered, true);
      }
docs: Calls getValidUIParameterChildren(facesContext, children, skipNullValue, skipUnrendered, true);
  
  @param facesContext
  @param children
  @param skipNullValue
  @param skipUnrendered
  @return ArrayList size > 0 if any parameter found