For reference, if nothing else, look at the open-source derivatives of WebObjects. Per Wikipedia: "Apache Tapestry has a design and philosophy similar to that

For reference, if nothing else, look at the open-source derivatives of WebObjects. Per Wikipedia: "Apache Tapestry has a design and philosophy similar to that of WebObjects. Tapestry is frequently combined with Apache Cayenne, a persistence framework inspired by EOF." The WebObject 5.x series was built around Java.