MainMenu: Add missing final keywords

git-svn-id: https://josm.openstreetmap.de/svn/trunk@18529 0c6e7542-c601-0410-84e7-c038aed88b3b

Author: taylor.smock

src/org/openstreetmap/josm/gui/MainMenu.java

@@ -178,9 +178,9 @@ public enum WINDOW_MENU_GROUP {
     /** File / Save As... **/
     public final SaveAsAction saveAs = SaveAsAction.getInstance();
     /** File / Session > Save Session **/
-    public SessionSaveAction sessionSave = SessionSaveAction.getInstance();
+    public final SessionSaveAction sessionSave = SessionSaveAction.getInstance();
     /** File / Session > Save Session As... **/
-    public SessionSaveAsAction sessionSaveAs = new SessionSaveAsAction();
+    public final SessionSaveAsAction sessionSaveAs = new SessionSaveAsAction();
     /** File / Export to GPX... **/
     public final GpxExportAction gpxExport = new GpxExportAction();
     /** File / Download from OSM... **/