This commit adds Checkstyle rules to disallow imports of the following.
- junit.framework.*
- org.junit.Assert.assertThat
- org.junit.Assume.assumeThat
See gh-22894
* Add limited checkstyles to test code
Add a limited set of checkstyle rules to the test codebase to improve
code consistency.
* Fix checksyle violations in test code
* Organize imports to fix checkstyle for test code
* Migrate to assertThatExceptionOfType
Migrate aware from ExpectedException rules to AssertJ exception
assertions. Also include a checkstyle rules to ensure that the
the ExpectedException is not accidentally used in the future.
See gh-22894
Add checkstyle to the build to enforce Spring Framework coding
conventions. Rule suppressions are used for several classes where
relaxing the rules makes more sense than fixing them.
Issue: SPR-16968
Sam Brannen
Phillip Webb