Refactor jpa (EE mode) tests.

[starksm64]

No description provided.

[scottmarlow]

Current status on September 6, 2024:

Test vehicle:

pmservlet - a number of tests are running with some passing (227 test source files)
puservlet - a number of tests are running with some passing (220 test source files)
appmanaged - zero tests are running (210 test source files)
appmanagedNoTx - zero tests are running (220 test source files)
stateful3 - zero tests are running (222 test source files)
stateless3 - zero tests are running (233 test source files)

Current Totals:
Tests run: 3807, Failures: 0, Errors: 1969, Skipped: 0

We expect that with all vehicles working we should run around 10936 tests but possibly less.

[scottmarlow]

I updated the base JPA classes to be more like EE 10 (e.g. each now has a main and no longer includes junit class references which was causing class not found issues). We still have test bugs to sort out that lead to the failures (need mapping.xml support changes + to address other issues). Need to also look at our test runner to see why we aren't running all of the jpa tests.

[scottmarlow]

Blocking issue is eclipse-ee4j/glassfish#25190