Build fix

src/test/java/de/thm/arsnova/dao/StubDatabaseDao.java

@@ -256,7 +256,7 @@ public class StubDatabaseDao implements IDatabaseDao {
 	}
 
 	@Override
-	public List<Answer> getMyAnswers(User user, String sessionKey) {
+	public List<Answer> getMyAnswers(User user, Session session) {
 		return new ArrayList<Answer>();
 	}
 

src/test/java/de/thm/arsnova/services/SessionServiceTest.java

@@ -173,7 +173,7 @@ public class SessionServiceTest {
 
 			final IDatabaseDao mockDatabase = mock(IDatabaseDao.class);
 			when(mockDatabase.getSkillQuestions(userService.getCurrentUser(), session)).thenReturn(Arrays.asList(q1, q2));
-			when(mockDatabase.getSession(anyString())).thenReturn(session);
+			when(mockDatabase.getSessionFromKeyword(anyString())).thenReturn(session);
 			ReflectionTestUtils.setField(getTargetObject(sessionService), "databaseDao", mockDatabase);
 
 			sessionService.deleteSession(session.getKeyword());