diff --git a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusiness.java b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusiness.java
index f42d638..ef0238d 100644
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusiness.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusiness.java
@@ -40,9 +40,6 @@ public class EventBusiness {
 
 	public void changePersons(Set<Person> selected) {
 		if (current != null) {
-//			for (Person p : selected) {
-//				current.add(p);
-//			}
 			try {
 				dao.addPersons(current, selected);
 				log.info("Updated {}, {} with participants: {}", current.getCaption(), current.getStart(), selected);
diff --git a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/data/ClubEvent.java b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/data/ClubEvent.java
index f48817d..4a04406 100644
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/data/ClubEvent.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/data/ClubEvent.java
@@ -157,29 +157,35 @@ public class ClubEvent extends BasicItem {
 	public boolean equals(Object obj) {
 		if (this == obj)
 			return true;
+		if (obj == null)
+			return false;
 		if (getClass() != obj.getClass())
 			return false;
 		ClubEvent other = (ClubEvent) obj;
 		if (iCalUID == null) {
 			if (other.iCalUID != null)
 				return false;
-		} else if (!iCalUID.equals(other.iCalUID))
+		} else if (!iCalUID.equals(other.iCalUID)) {
 			return false;
+		}
 		if (id == null) {
 			if (other.id != null)
 				return false;
-		} else if (!id.equals(other.id))
+		} else if (!id.equals(other.id)) {
 			return false;
+		}
 		if (location == null) {
 			if (other.location != null)
 				return false;
-		} else if (!location.equals(other.location))
+		} else if (!location.equals(other.location)) {
 			return false;
+		}
 		if (organizerDisplayName == null) {
 			if (other.organizerDisplayName != null)
 				return false;
-		} else if (!organizerDisplayName.equals(other.organizerDisplayName))
+		} else if (!organizerDisplayName.equals(other.organizerDisplayName)) {
 			return false;
+		}
 		return true;
 	}
 
diff --git a/src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusinessTest.java b/src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusinessTest.java
index 39e547e..7203ef7 100644
--- a/src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusinessTest.java
+++ b/src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusinessTest.java
@@ -24,6 +24,7 @@ import org.springframework.test.context.junit.jupiter.SpringExtension;
 import de.kreth.clubhelperbackend.google.calendar.CalendarAdapter;
 import de.kreth.vaadin.clubhelper.HibernateHolder;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.AbstractDatabaseTest;
+import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.ClubEventDao;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.ClubEventDaoImpl;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.ClubEvent;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.Person;
@@ -38,17 +39,17 @@ class EventBusinessTest {
 	private DatabaseHelper helper;
 
 	@Autowired
-	protected EntityManager entityManager;
-
 	private EventBusiness business;
 
+	@Autowired
+	private EntityManager entityManager;
+
 	@Configuration
-	public static class MyConfig {
+	public static class InnerConfig {
 
 		@Bean
 		public EntityManager getEntityManager() throws Exception {
 
-			// setup the session factory
 			org.hibernate.cfg.Configuration configuration = HibernateHolder.configuration();
 
 			SessionFactory sessionFactory = configuration.buildSessionFactory();
@@ -56,11 +57,21 @@ class EventBusinessTest {
 
 		}
 
+		@Bean
+		public ClubEventDao getClubEventDao() {
+			return new ClubEventDaoImpl();
+		}
+
 		@Bean
 		public CalendarAdapter getCalendarAdapter() throws GeneralSecurityException, IOException {
 			return new CalendarAdapter();
 		}
 
+		@Bean
+		public EventBusiness getEventBusiness() {
+			return new EventBusiness();
+		}
+
 	}
 
 	@BeforeEach
@@ -68,11 +79,6 @@ class EventBusinessTest {
 		helper = new DatabaseHelper(entityManager);
 		helper.cleanH2Database();
 
-		ClubEventDaoImpl dao = new ClubEventDaoImpl();
-		dao.setEntityManager(entityManager);
-
-		business = new EventBusiness();
-		business.dao = dao;
 		insertTestData();
 		business.setSelected(event);
 	}