Update to Java 11 and migrate to Jersey >=2.37 #380

Jersey 1->2 migration seems to be some work, in the case of Kustvakt. The latest guide seems to be here.

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A fix should upgrade the jersey-version in core/pom.xml, lite/pom.xml, and full/pom.xml from 1.19.4 to >=2.37 and java-version from 1.8 to 11, migrate the sources as necessary and pass all tests (see ci_test.yml).

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IDS employees are not eligible for the bounty.

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Hi. I would like to work on this issue. Can you please assign me?

Yes, great! However, before starting with the work, you'd first have to complete the first three pages of our bogus self-employment verification questionnaire and send it to me. Unfortunately, we only have the official German version, but I guess you can translate it.

Give me an email address to which I will send the filled in form.

Give me an email address to which I will send the filled in form.

kupietz@ids-mannheim.de

I have sent it.

Is this issue still open? Would like to work on it. @kupietz

Is this issue still open? Would like to work on it. @kupietz

Thanks for the offer, bot @abcpro1 is already working on it, and is apparently almost done.

I opened a pull request with the complete work ready for review at #471.

Resolved via #471

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As an additional note, if an upgrade to jersey 3.1.0 is needed in the future, Spring 6 is required which in turn requires Java 17 at minimum. Ref1, Ref2.