minor formatting work

spring-data-mongodb/src/main/java/org/baeldung/event/CascadeCallback.java

@@ -8,10 +8,10 @@ import org.springframework.data.mongodb.core.mapping.DBRef;
 import org.springframework.util.ReflectionUtils;
 
 public class CascadeCallback implements ReflectionUtils.FieldCallback {
-    
+
     private Object source;
     private MongoOperations mongoOperations;
-    
+
     public CascadeCallback(final Object source, final MongoOperations mongoOperations) {
         this.source = source;
         this.setMongoOperations(mongoOperations);

spring-data-mongodb/src/main/java/org/baeldung/event/CascadeSaveMongoEventListener.java

@@ -6,10 +6,10 @@ import org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventLis
 import org.springframework.util.ReflectionUtils;
 
 public class CascadeSaveMongoEventListener extends AbstractMongoEventListener<Object> {
-    
+
     @Autowired
     private MongoOperations mongoOperations;
-  
+
     @Override
     public void onBeforeConvert(final Object source) {
         ReflectionUtils.doWithFields(source.getClass(), new CascadeCallback(source, mongoOperations));

spring-data-mongodb/src/test/java/org/baeldung/mongotemplate/MongoTemplateQueryIntegrationTest.java

@@ -26,7 +26,6 @@ import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
-
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration(classes = MongoConfig.class)
 public class MongoTemplateQueryIntegrationTest {