src/java.desktop/share/classes/javax/swing/plaf/basic/BasicDirectoryModel.java

@@ -217,16 +217,18 @@
         return fileCache.get(index);
     }
 
     /**
      * Obsolete - not used.
+     * @param e list data event
      */
     public void intervalAdded(ListDataEvent e) {
     }
 
     /**
      * Obsolete - not used.
+     * @param e list data event
      */
     public void intervalRemoved(ListDataEvent e) {
     }
 
     /**

@@ -236,11 +238,16 @@
      */
     protected void sort(Vector<? extends File> v){
         ShellFolder.sort(v);
     }
 
-    // Obsolete - not used
+    /**
+     * Obsolete - not used
+     * @return a comparison of the file names
+     * @param a a file
+     * @param b another file
+     */
     protected boolean lt(File a, File b) {
         // First ignore case when comparing
         int diff = a.getName().toLowerCase().compareTo(b.getName().toLowerCase());
         if (diff != 0) {
             return diff < 0;