Hi, The XMLSecure DataFormat doesn't propose as atrribute within the XMLSecure tag the attribute for the namespaces as the annotation @XMLTransient us defined within the class for JAXB
@Metadata(label = "dataformat,transformation", title = "XML Security") @XmlRootElement(name = "secureXML") @XmlAccessorType(XmlAccessType.FIELD) public class XMLSecurityDataFormat extends DataFormatDefinition implements NamespaceAware { @XmlTransient private Map<String, String> namespaces; Is there a reason why it is not defined with the annotation @Attribute ? Regards, -- Charles Moulliard Apache Committer & PMC / Architect @RedHat Twitter : @cmoulliard | Blog : http://cmoulliard.github.io