code: @XmlElementDecl(namespace = "http://www.schemas.conceptdraw.com/cdprj/document.xsd", name = "OutlineNumber") public JAXBElement<String> createOutlineNumber(String value)
     {
        return new JAXBElement<String>(_OutlineNumber_QNAME, String.class, null, value);
     }
docs: Create an instance of {@link JAXBElement }{@code <}{@link String }{@code >}}