Various code cleanup

Author: sebersole

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/query/NativeQueryLockingTests.java

@@ -82,6 +82,7 @@ void testLockModeHint(SessionFactoryScope sessions) {
 	}
 
 	@Test
+	@RequiresDialect( value = H2Dialect.class, comment = "This has more to do with Query internals than the DB; so avoid Dialect variances in generated SQL" )
 	void testLockModeHintLowercase(SessionFactoryScope sessions) {
 		final SQLStatementInspector sqlCollector = sessions.getCollectingStatementInspector();
 		sqlCollector.clear();