Recommended Java frameworks for Google App Engine? [closed]

Question

I'm new to google appengine and java webprogramming (jsp/servlets/frameworks) (not to webprogramming or java). I was wondering if appengine supported java frameworks and, if so, which of them are recomandable? Are there any frameworks that support authentication?

Thanks

Answer 1

A Google employee linked to the following information on a mailing list:

While we do not support the entirety of the Java EE specification, many of its individual components are supported. These include:

• Java Data Objects (JDO) -- notes
• Java Persistence API (JPA) -- notes
• Java Server Faces (JSF) 1.1 - 2.0
• Java Server Pages (JSP) + JSTL
• Java Servlet API 2.4 -- notes
• JavaBeans™ Activation Framework (JAF)
• Java Architecture for XML Binding (JAXB)
• Java API for XML Web Services (JAX-WS)
• JavaMail -- notes
• XML processing APIs including DOM, SAX, and XSLT