From f78b8a363a5acd714cf7ecab20951ddb05dc1acd Mon Sep 17 00:00:00 2001
From: Vincent Privat <vincent.privat@gmail.com>
Date: Wed, 25 Aug 2021 17:06:32 +0200
Subject: [PATCH] fix #20958 - NPE

---
 .../plugins/continuosDownload/AbstractDownloadStrategy.java     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/org/openstreetmap/josm/plugins/continuosDownload/AbstractDownloadStrategy.java b/src/org/openstreetmap/josm/plugins/continuosDownload/AbstractDownloadStrategy.java
index 1cd4918..c5f386e 100644
--- a/src/org/openstreetmap/josm/plugins/continuosDownload/AbstractDownloadStrategy.java
+++ b/src/org/openstreetmap/josm/plugins/continuosDownload/AbstractDownloadStrategy.java
@@ -91,6 +91,8 @@ private static Bounds intersection(Bounds box1, Bounds box2) {
 
     private static Collection<Bounds> getExisting(Class<?> klass) {
         if (klass.isAssignableFrom(OsmDataLayer.class)) {
+            if (!MainApplication.isDisplayingMapView())
+                return null;
             OsmDataLayer layer = MainApplication.getMap().mapView.getLayerManager().getEditLayer();
             if (layer == null) {
                 Collection<Layer> layers = MainApplication.getMap().mapView.getLayerManager().getLayers();