This article demonstrates how you can enable StepUp Authentication for Portlets and Portal Pages.
Also note that WCM resources are not authenticated using this api.
XML documents are normally validated using DTD or XML schemas. XML Schemas are simpler
and yet more powerful to validate any XML document. Java has an inbuilt Xerces parser
which can be used for validation of any XML doc against a schema but it tends to
be slow. XMLBeans is a Java XML library to perform operations like parsing,
validating, marshalling, unmarshalling, etc.
This article demonstrates how we can validate XML doc against XML schema using XMLBeans...