general formatting work

spring-hibernate4/src/test/java/com/baeldung/persistence/audit/JPABarAuditTest.java

@@ -41,7 +41,6 @@ public class JPABarAuditTest {
         logger.info("tearDownAfterClass()");
     }
 
-
     @Autowired
     @Qualifier("barJpaService")
     private IBarService barService;
@@ -51,7 +50,6 @@ public class JPABarAuditTest {
 
     private EntityManager em;
 
-
     @Before
     public void setUp() throws Exception {
         logger.info("setUp()");
@@ -64,7 +62,6 @@ public class JPABarAuditTest {
         em.close();
     }
 
-
     @Test
     public final void whenBarsModified_thenBarsAudited() {
 
@@ -84,7 +81,6 @@ public class JPABarAuditTest {
         bar1.setName("BAR1b");
         barService.update(bar1);
 
-
         // get BAR1 and BAR2 from the DB and check the audit values
         // detach instances from persistence context to make sure we fire db
         em.detach(bar1);