1 files changed, 1 insertions, 1 deletions
diff --git a/src/org/traccar/web/server/model/DataServiceImpl.java b/src/org/traccar/web/server/model/DataServiceImpl.java
index c2ebce15..6e99897b 100644
--- a/src/org/traccar/web/server/model/DataServiceImpl.java
+++ b/src/org/traccar/web/server/model/DataServiceImpl.java
@@ -134,7 +134,7 @@ public class DataServiceImpl extends RemoteServiceServlet implements DataService
                 setSessionUser(user);
                 return user;
             }
-            return null;
+            throw new IllegalStateException();
         }
     }