Index: src/org/openstreetmap/josm/tools/Territories.java
===================================================================
--- src/org/openstreetmap/josm/tools/Territories.java	(revision 16365)
+++ src/org/openstreetmap/josm/tools/Territories.java	(working copy)
@@ -60,7 +60,7 @@
 
     static volatile Map<String, GeoPropertyIndex<Boolean>> iso3166Cache;
     static volatile Map<String, TaginfoRegionalInstance> taginfoCache;
-    static volatile Map<String, TaginfoRegionalInstance> taginfoGeofabrikCache;
+    static volatile Map<String, TaginfoRegionalInstance> taginfoGeofabrikCache = Collections.emptyMap();
     static volatile Map<String, TagMap> customTagsCache;
 
     private static final List<String> KNOWN_KEYS = Arrays.asList(ISO3166_1, ISO3166_2, TAGINFO, "type", "name:en", "driving_side", "note");