HDDS-11717. Require Java 17 for build #7439
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What changes were proposed in this pull request?
This is a breaking change that I would like to discuss.
The immediate goal is to upgrade Spring Framework to 6.2.0, the latest version, because Spring 5.x is EOL.
Spring 6.x requires Java 17.
Recon is the only component in Ozone that uses Spring.
Therefore with this change Ozone would require Java 17 at build time, and for Recon also at runtime.
Findbugs check needs to be disabled (temporarily), because Spotbugs 3 does not support Java 17 classes, and Spotbugs 4 emits ~2K failures for the same codebase.
https://issues.apache.org/jira/browse/HDDS-11717
How was this patch tested?
Ozone is built in CI with Java 17, producing Java 8 jars. Tests are run with Java 17.
acceptance (MR) tests Ozone filesystem jars with Hadoop using Java 8.
https://github.com/adoroszlai/ozone/actions/runs/11858701453