How far along is integration of Hibernate 6 and 7 in Karaf?

[ikannak]

I was suggested by @jbonofre on the mailing list to create an issue here for tracking support for Hibernate 6 and Hibernate 7.

We currently use karaf 4.4.4 and Hibernate 5.6.16. We want to update to Hibernate 6 and eventually Hibernate 7 because Hibernate 5.6 is end of life. We have already upgraded Hibernate in the Tomcat part of our product, but we are struggling to make it compatible with Karaf.

The problem is that Hibernate no longer natively supports OSGi, and attempting to wrangle more recent versions of Hibernate into an OSGi bundle is currently proving to be a struggle for our team. This effort appears to be doomed because Hibernate's reliance on ByteBuddy is incompatible with OSGi. We may need to use the integrated Hibernate feature in Karaf, but that needs to be updated first.

[jbonofre]

@ikannak Thanks ! I will work on this and let's have this ticket for tracking.

[frankikan]

I’m the colleague of @ikannak that is tasked with the upgrade to Hibernate 6. I have tried a lot of workarounds of getting Hibernate 6 to work with Karaf 4.4.4, but didn’t find any solution that doesn’t result in some sort of classloading issue. It looks like the Hibernate 6 feature you’re working on will be the only solution for us. As we’re stuck for now, I have to ask if you have a timeframe in which you think the new Hibernate 6 feature will be released ?

[jbonofre]

I'm finalizing the Karaf 4.4.10 release. As soon as this release is out, I will get back on Hibernate. Sorry for the delay.