Vote for JAXB on Google App Engine

JAXB is not yet supported on Google App Engine. If you try to use it you'll get this problem:

Go to this page http://code.google.com/p/googleappengine/issues/detail?id=1267 and vote for JAXB!

I'm going to try the interim solution provided by a poster to the issue above.


JSTL on Google App Engine

This caught me out this morning. I was trying to get a simple JSP page with EL to work in Google App Engine but the EL wasn't being evaluated. This was what I had:

<%@ page contentType="text/html" pageEncoding="UTF-8" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<!DOCTYPE html>
 <p>Hello from Spring ${user}</p>
 <p>AuthDomain = ${user.authDomain}</p>
 <p>Nickname = ${user.nickname}</p>
 <p>Email = ${user.email}</p>
 <p>UserId = ${user.userId}</p>

Unfortunately the output from this was:

Hello from Spring ${user}
AuthDomain = ${user.authDomain}
Nickname = ${user.nickname}
Email = ${user.email}
UserId = ${user.userId}

In order to get Google App Engine to evaluate the EL I had to add this:

<%@ page isELIgnored="false" %>

to the top of the JSP.