Update java version

[ErikaSignal]

Update Java version to 21 and some of the methods to newer methods that also looks cleaner.

[cmatlak]

Looks good and clean, easier to read

[kappsegla]

SonarCloud build looks to fail for some reason. Must be the file sonar.yml in workflows that have some problems. Might be because the actual project on sonarcloud.io seams to be removed. Maybe I did that or the project is too old. Might have to create a new project there and do some changes for it to work.
But the failing looks like its using a too old version of Jacoco plugin that doesn't support java 21?
java.lang.instrument.IllegalClassFormatException: Error while instrumenting org/fungover/haze/HazeDatabaseTest with JaCoCo 0.8.8.202204050719/5dcf34a.

Might have to update pom.xml to use a newer version?

[robinalfengard]

Good update, looks a lot cleaner!

But there seems to be a problem with the build? I think the jacoco version in the project does not support java 21. Maybe it needs to be updated in the pom.xml to a newer version.
https://www.jacoco.org/jacoco/trunk/doc/changes.html

[kappsegla]

Should also update java version in Dockerfile, since that is using 19-jre now.
FROM eclipse-temurin:19-jre-jammy

Can be done in this pullrequest but make sure to try to create a docker image locally and run it to make sure everything works. The dockerfile is used by our automatic release process so it must work. :)

The commands to build the image locally should be:

mvn verify
docker build --tag tag:version .

[sonarcloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
62.1% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[ErikaSignal]

Thank you for the feedback! Updated the docker version now too and all is checked :D

[robinalfengard]

Updated jacoco version fixed previous issue :)

[cmatlak]

looks good with the version changes, all files seems to build succesfuly