Hi all! I am trying to configure authentication with okta and spring boot and basicaly, I follow these manual https://devforum.okta.com/t/spring-security-saml-and-database-authentication/17305/2 . After starting application there is exception being thrown: org.xml.sax.SAXParseException: DOCTYPE is disallowed when the feature "http://apache.org/xml/features/disallow-doctype-decl" set to true. Debugger led me to AbstractReloadingMetadataProvider, which cant unmarshall byte array. Any suggestions are valuable)