Fix a possible NPE in polygon auto trace

2022-04-11 15:14:52 +02:00
parent 8979ec4dea
commit e776ded206
1 changed files with 3 additions and 1 deletions
@@ -82,7 +82,9 @@ public class AutoTraceDialogMediator extends Mediator<AutoTraceDialog> {

                    FollowersUIMediator followersUIMediator = HyperLap2DFacade.getInstance().retrieveMediator(FollowersUIMediator.NAME);
                    BasicFollower follower = followersUIMediator.getFollower(entity);
-                    follower.getSubFollower(PolygonFollower.class).update();
+                    PolygonFollower polygonFollower = (PolygonFollower) follower.getSubFollower(PolygonFollower.class);
+                    if (polygonFollower != null)
+                        polygonFollower.update();

                    HyperLap2DFacade.getInstance().sendNotification(MsgAPI.ITEM_DATA_UPDATED, entity);
                }