This article is devoted to an upgrade of a common JSF Spring application. Time flies and there is already Java EE 7 platform out and widely used. It's sometimes said that Spring framework has become legacy with appearance of Java EE 6. But it's out of scope of this post. Here I'm going to provide notes about the minimal changes that I found required for the upgrade of the application from JSF 1.2 to 2.1, from JSTL 1.1.2 to 1.2, from Servlet 2.4 to 3.0, from Spring 3.1.3 to 4.0.5, from RichFaces 3.3.3 to 4.3.7. It must be mentioned that the latest final RichFaces release 4.3.7 depends on JSF 2.1, JSTL 1.2 and Servlet 3.0.1 that dictated those versions. This post should not be considered as comprehensive but rather showing how I did the upgrade. See the links for more details. Jetty & Tomcat. JSTL. JSF & Facelets. Servlet. Spring framework. RichFaces. Jetty & Tomcat First, I upgraded the application to run with the latest servlet container versio