This PR fixes the serialization of SAML extensions. According to the SAML 2 Metadata XML Schema, the extension is of the type Any. Therefore, it can be parsed as an instance of the JAXB object, but the current serialization process expects the value to be a simple string.
This PR fixes the serialization of SAML extensions. According to the SAML 2 Metadata XML Schema, the extension is of the type Any. Therefore, it can be parsed as an instance of the JAXB object, but the current serialization process expects the value to be a simple string.