Upgrade Lucene/Solr/Elastic to latest version

[erikgb]

Problem description

While working on #3559, I realize we have to upgrade Solr to version 9 - since Solr version 8 is based on Jetty 9, and we are forced to upgrade to Jetty version 10 to migrate to Java/Jakarta EE 8. Draft PR: #4397.

Before performing a major upgrade of Solr, I suggest upgrading to the latest minor version and fixing deprecation warnings. This will ease the major version upgrade.

Preferred solution

Solr dependencies are bumped to the latest minor update and usage of deprecated APIs is fixed.

Are you interested in contributing a solution yourself?

Perhaps?

Alternatives you've considered

No response

Anything else?

No response

[barthanssens]

This is related to #3396

Unfortunately there is also ElasticSearch, which is using - like Solr - Lucene libraries...

I'd prefer to keep both ES and Solr on the same version of Lucene... but no hard feelings if the more practical approach would be to include different versions depending on the search-solution being selected...

[erikgb]

Thanks @barthanssens! I was about to write a comment after discovering #3396. Somehow we need to sort out the issues related to the javax-jakarta migration. Maybe I should open a new discussion, or continue under #4433? WDYT? After fixing the immediate issues with WireMock in #4439 this is now the blocker for a migration to Java/Jakarta EE 8,

[barthanssens]

Sure, I do remember that upgrading is not as straightforward as I thought it would be (see also the changes in 3396), but perhaps I've missed some obvious fixes/work-arounds...