Index: trunk/src/org/openstreetmap/josm/gui/dialogs/validator/ValidatorTreePanel.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/dialogs/validator/ValidatorTreePanel.java	(revision 14838)
+++ trunk/src/org/openstreetmap/josm/gui/dialogs/validator/ValidatorTreePanel.java	(revision 14839)
@@ -352,5 +352,5 @@
         walkAndSelectRelatedErrors(new TreePath(getRoot()), new HashSet<>(primitives)::contains, paths);
         getSelectionModel().clearSelection();
-        getSelectionModel().setSelectionPaths(paths.toArray(new TreePath[paths.size()]));
+        getSelectionModel().setSelectionPaths(paths.toArray(new TreePath[0]));
         // make sure that first path is visible
         if (!paths.isEmpty()) {