return early if no params where supplied

diff --git a/src/org/mcb/services/udac.java b/src/org/mcb/services/udac.java
index 9d9a69d..8ae960f 100644 (file)
--- a/src/org/mcb/services/udac.java
+++ b/src/org/mcb/services/udac.java
@@ -21,6 +21,9 @@ public class udac {
 
        public UserBean login(String userId, String password) {
                // preparing some objects for connection
+               if (userId == null || password == null) {
+                       return null;
+               }
                Connection currentCon = null;
                ResultSet rs = null;
                PreparedStatement stmt = null;