Index: trunk/test/unit/org/openstreetmap/josm/data/osm/ChangesetCacheTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/osm/ChangesetCacheTest.java	(revision 14165)
+++ trunk/test/unit/org/openstreetmap/josm/data/osm/ChangesetCacheTest.java	(revision 14166)
@@ -82,8 +82,6 @@
         cache.addChangesetCacheListener(null);
 
-        // should work
-        ChangesetCacheListener listener = new ChangesetCacheListener() {
-            @Override
-            public void changesetCacheUpdated(ChangesetCacheEvent event) {}
+        ChangesetCacheListener listener = event -> {
+            // should work
         };
         cache.addChangesetCacheListener(listener);