.. Nullpointer when marking bill paid if groupmembership is null for user

code/MoyaBeans/ejbModule/fi/codecrew/moya/beans/PlaceBean.java

@@ -372,12 +372,17 @@ public class PlaceBean implements PlaceBeanLocal {
 
 	private static boolean isUserMember(EventUser user, Product prod) {
 		boolean ret = false;
-		for (GroupMembership gm : user.getGroupMemberships()) {
-			if (prod.equals(gm.getPlaceReservation().getProduct())) {
-				ret = true;
-				break;
+		if (user.getGroupMemberships() != null)
+		{
+			for (GroupMembership gm : user.getGroupMemberships()) {
+
+				if (gm.getPlaceReservation() != null && prod.equals(gm.getPlaceReservation().getProduct())) {
+					ret = true;
+					break;
+				}
 			}
 		}
+
 		return ret;
 	}