Hey David, Thanks, I ended up finding your repo and putting all the pieces together. Good to have this summary in the mailing list though.
I'm still not sure if it is worth it or not. We would need to measure it on different sets of applications. For the moment, I have bytecode updated it as well as other libraries I can't update or move to Jakarta at the minute. https://github.com/apache/tomee/tree/tomee-9.x-initial/deps -- Jean-Louis Monteiro http://twitter.com/jlouismonteiro http://www.tomitribe.com On Wed, Feb 16, 2022 at 4:42 PM David Blevins <david.blev...@gmail.com> wrote: > > On Feb 16, 2022, at 9:28 AM, Zowalla, Richard < > richard.zowa...@hs-heilbronn.de> wrote: > > > > The list archive does not contain any useful information regarding sxc. > > Note the list archive frustratingly searches only the last month's worth > of mail by default. Try this link: > > - https://lists.apache.org/list?dev@tomee.apache.org:lte=20y > > Here's a couple threads with information: > > - "SXC" February 6, 2019 > https://lists.apache.org/thread/6h40wo6vfgrspjt2vzzfkpm8k2w42ym4 > > - "XML performance improvement" December 10, 2012 > https://lists.apache.org/thread/f5bnv2nz917pjz8zyh7ktx6ngtysgron > > Here's the source code: > > - https://github.com/dblevins/sxc > > From the 2012 email, the key part from the last link, "We load 5,000 - > 6,000 classes when TomEE boots and nearly 4,000 are JAXB generated." My > memory is that this was over 50% of our start time. > > As a reference, generating classes in advance is basically one of the key > things that makes Quarkus fast and the SXC/generation optimization a > significant part of why we were faster to boot than everyone else in the > pre-Quarkus days. The concept is valid and we definitely need to do > significantly more of it, but there is a valid question on if this codebase > is worth investment. > > I don't think it's worth significant investment, but I don't think we > should remove it until we can replace it with something equivalent or > better. If I had to do this again, I'd likely investigate if there's some > way to do this with extending JAXB via the TomEE Patch Plugin. > > My advice would be to bytecode translate it for now if we can. > > > -David > >
