Index: trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java	(revision 17910)
+++ trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java	(revision 17911)
@@ -245,5 +245,7 @@
      * @return a new ISO 8601 date format, for date and time.
      * @since 7299
-     */
+     * @deprecated Use {@link Instant#toString()}
+     */
+    @Deprecated
     public static SimpleDateFormat newIsoDateTimeFormat() {
         return new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssX");