Switch to jdk 21

Description:

Since version 2024.2 IDEA switched to JBR 21. (See https://www.jetbrains.com/idea/whatsnew/#page__content-jetbrains-runtime) Therefore, the dependency should be updated to OpenJDK 21.

Also, when starting the IDE complains with the following message:

The IDE seems to be launched with a script launcher ('bin/idea.sh'). Please consider switching to a native launcher ('bin/idea') for better experience.

Additional info:

  • package version(s): 2024.2.0.1-1

Steps to reproduce:

  1. Install IntelliJ IDEA CE via package
  2. Run IntelliJ IDEA CE
  3. Observe that Help -> About shows boot runtime as OpenJDK 17
Edited by A Kolbeck
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