DuplicateMappingException: Duplicate class/entity mapping

It turns out the deceptive exception can be thrown from an improperly formed Many-to-Many relationship declaration. I'm not going to take the time to document a correct declaration here but I was getting this misleading error message and was searching for an obvious problem with imports when it turned out to be the @ManyToMany annotation usage.

Mockingbird

Mockingbird

Handy tool to remember especially from a Mac/Linux standpoint when one lacks Visio.

Chromium Blog: A 2x Faster Web

Chromium Blog: A 2x Faster Web

It is about time someone did this. There's no reason to think the HTTP protocol is the optimal and only protocol to last through the ages.

SQLAlchemy - The Database Toolkit for Python

SQLAlchemy - The Database Toolkit for Python

I need to explore the world of ORM'ing in Python. Python might just be the best cloud option going these days.

Spring with gwt-dispatch

pgt » Use Spring with GWT dispatch

So inspired by this post and the discussion over in the gwt-dispatch group I have converted my application over from Guice to Spring. The only variance from the pgt blog post is that I am using net.customware.gwt.dispatch.server.spring.SpringStandardDispatchServlet in my web.xml. Other than that my action handlers are getting called as expected.

InfoQ: Java Card 3 Includes Java 6 Support and an Embedded Servlet Container

InfoQ: Java Card 3 Includes Java 6 Support and an Embedded Servlet Container

Wow Tomcat in your pocket. This might expand some possibilities for iPhone applications.

Raible Designs | Running Hosted Mode in GWT Libraries (when using Maven)

Raible Designs | Running Hosted Mode in GWT Libraries (when using Maven)

Linking to Matt Raible's notes on the GWT Maven plugin setup. I have basically the same findings.

I've added the maven-war-plugin for building a war for deployment. I've also had some problems since I'm not on Snow Leopard yet and there are JDK 1.6 issues with GWT and JDK 1.6 on Leopard.