[BAEL-9018] - Fixed malformed POMs and remaining PMD problems

flyway/src/test/java/com/baeldung/flywaycallbacks/FlywayApplicationUnitTest.java

@@ -16,7 +16,7 @@ import org.springframework.test.context.junit4.SpringRunner;
 @RunWith(SpringRunner.class)
 @DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)
 @ContextConfiguration(classes = FlywayCallbackTestConfig.class)
-public class FlywayApplicationTest {
+public class FlywayApplicationUnitTest {
 
     private Log log = LogFactory.getLog(getClass());