Call refresh by default in AbstractFileObject.onChange

Author: boris-petrov

commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/AbstractFileObject.java

@@ -1759,13 +1759,13 @@ private void notifyParent(final FileName childName, final FileType newType) thro
     /**
      * Called when the type or content of this file changes.
      * <p>
-     * This implementation does nothing.
+     * This implementation just calls `refresh`.
      * </p>
      *
      * @throws Exception if an error occurs.
      */
     protected void onChange() throws Exception {
-        // noop
+        this.refresh();
     }
 
     /**