Hi Jonathan, I will be happy to help by providing PR on namespace change if you can share more details.
Thanks and Regards, Nishant On Thu, Apr 16, 2020, 7:02 PM Jonathan Gallimore < [email protected]> wrote: > Hi All, > > You may be aware that as part of the Jakarta EE 9 release later this year, > the various APIs provided in TomEE will be shifting from javax namespaces > to jakarta. > > I'm currently researching the use of the Eclipse Transformer project ( > https://projects.eclipse.org/projects/technology.transformer) to translate > both the TomEE server itself, and the source code for the examples. > > So far, I have a converted javaee-api.jar, and a Jakarta-ized version of > TomEE that boots. There's *lots* that doesn't work at the present moment, > but I'm expecting to have the moviefun example running fairly soon - that > covers EJB, Servlets, JSPs, JPA. The REST version of the sample also covers > JAX-RS too. > > I'm aware that there's also a migration tool that Tomcat have been working > on too, and will be looking at. > > We ought to have some discussion about the approach here - in my mind there > are some high-level goals: > > * Try and maintain a single codebase for javax and jakarta. It's > tempting to fork master and embark on a massive renaming exercise. That's > complex as we'd need to do that for various dependencies as well, who may > also have other branches and timelines. Having two codebases also means > that any changes need to be applied twice, and with renamed packages, its > unlikely the git merging or cherry-picking will work. > > * Be backwards compatible - One goal I had in my mined, is that if you have > an application that uses javax, you'd probably like to be able to run it on > a new Jakarta EE server. There are some options here - I quite like the > idea of running the Transformer as a javaagent, so any applications > deployed using the old namespaces are converted on the fly at the bytecode > level. > > * Tooling - I wonder what tooling we could potentially provide? One thought > I had was a Maven plugin that can transform a war/ear file for you as part > of a build. > > Anyway, just wanted to give a heads-up on the research. Any thoughts / > discussions / questions are encouraged. > > Jon >
