Index: trunk/test/unit/org/openstreetmap/josm/gui/preferences/imagery/ImageryPreferenceTestIT.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/preferences/imagery/ImageryPreferenceTestIT.java	(revision 14512)
+++ trunk/test/unit/org/openstreetmap/josm/gui/preferences/imagery/ImageryPreferenceTestIT.java	(revision 14513)
@@ -36,4 +36,5 @@
 import org.openstreetmap.josm.tools.HttpClient.Response;
 import org.openstreetmap.josm.tools.Logging;
+import org.openstreetmap.josm.tools.Utils;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
@@ -122,5 +123,6 @@
             AbstractTileSource tileSource = getTileSource(info);
             checkTileUrl(info, tileSource, center, info.getMinZoom());
-            checkTileUrl(info, tileSource, center, info.getMaxZoom());
+            // checking max zoom for real is complex, see https://josm.openstreetmap.de/ticket/16073#comment:27
+            checkTileUrl(info, tileSource, center, Utils.clamp(info.getMinZoom() + 1, 12, info.getMaxZoom()));
         } catch (IOException | WMTSGetCapabilitiesException | IllegalArgumentException e) {
             addError(info, e.toString());