Index: trunk/src/org/openstreetmap/josm/tools/Territories.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/Territories.java	(revision 16268)
+++ trunk/src/org/openstreetmap/josm/tools/Territories.java	(revision 16272)
@@ -124,4 +124,5 @@
      * Initializes territories.
      * TODO: Synchronization can be refined inside the {@link GeoPropertyIndex} as most look-ups are read-only.
+     * @see #initializeInternalData()
      */
     public static synchronized void initialize() {
@@ -130,5 +131,8 @@
     }
 
-    private static void initializeInternalData() {
+    /**
+     * Initializes territories using the internal data only.
+     */
+    public static void initializeInternalData() {
         iso3166Cache = new HashMap<>();
         taginfoCache = new TreeMap<>();