[JENKINS-73616] Log spam from AnnotationParser#parseClass

[basil]

Context

See JENKINS-73616.

Problem

Users have complained that there are new warnings emitted on Jenkins startup.

Evaluation

These duplicates are known to the project and ignored in https://github.com/jenkinsci/jenkins/blob/c5c69abd2d346a694c29b3e5f5d3991d94c38556/test/src/test/java/jenkins/ClassPathTest.java because we cannot upgrade jansi without also upgrading Groovy as described in jenkinsci/jenkins#5184 (review) (though I doubt anyone has actually tried?).

Solution

Since these warnings are a false positive, turn up the log level for this class from the default level to SEVERE so that this log statement is not printed.

Testing done

Reproduced the issue with java -jar jenkins.war and could no longer reproduce after this PR.

[MarkEWaite]

Thanks very much!

I had tried something very close to this (using literal string as argument to getLogger instead of import) and had seen the LG_LOST_LOGGER_DUE_TO_WEAK_REFERENCE spotbugs warning yet when I ran with my changes, it did not suppress the log messages . Today, I did the same thing today and it works. Your technique with the import is much better, since it assures that the class is available at compile time. I must have been missing something yesterday when I was experimenting, but I don't know what it was.

I ran without your changes and I see the log messages. I ran with your changes and the log messages are not displayed Thanks very much!