BeanValidationDiagnosticsCollector: Use qualified names and equals() for checking built-in types.

[mrglavas]

Resolves #1027

Also removed unused constants for unqualified class names.

[TrevCraw]

@mrglavas All builds are failing. Have you checked to see if these are existing failures or new ones?

[mrglavas]

@mrglavas All builds are failing. Have you checked to see if these are existing failures or new ones?

@TrevCraw I restarted all of the failing jobs. I'll take a look once they're done again. I did run the Jakarta unit test bucket locally for each of these PRs and those were passing before I put these up for review.

[mrglavas]

@mrglavas All builds are failing. Have you checked to see if these are existing failures or new ones?

@TrevCraw I restarted all of the failing jobs. I'll take a look once they're done again. I did run the Jakarta unit test bucket locally for each of these PRs and those were passing before I put these up for review.

@TrevCraw Linux is passing now. Was seeing "Timed out waiting for message CWWKE0036I in log:/home/runner/work/liberty-tools-intellij/liberty-tools-intellij/liberty-tools-intellij/src/test/resources/projects/maven sample/singleModMavenMP/target/liberty/wlp/usr/servers/defaultServer/logs/messages.log" in the previously failed build which I believe is a known issue (#982) that we're tracking. The Mac and Windows failures look like the known problems too.