🚀 go-pugleaf

I am having trouble understanding how to update the display of  JTree nodes.



My tree displays the file system hierarchy of directories.   The user object
of each node is a File object representing the directory.  I would like  the
user to be able to rename a selected directory.  I have a context menu on
the tree with a Rename action whose actionPerformed method has a
renameFile() method as below:



    String newName = JOptionPane.showInputDialog(frameWindow, "Enter new
name for directory");

    File f = new File(file.getParent() +"\\" + newName);

    if (f.exists()) {

      throw new Exception( "Directory already exists: \n" +
f.getAbsolutePath());

    }



    if (!file.renameTo(f))

      throw new Exception("Failed to rename file: \n" +
file.getAbsolutePath());



    treeModel = (FileSystemTreeModel) fsTree.getModel();

    treeModel valueForPathChanged(selectedPath, f);



This renames the file (I can verify this by refreshing the tree) but doesn't
update the tree's display.  The tree continues to have the old directory
name until I perform a reload of the model.  I would like to see the
directory name changed without having to reload() the model since this
collapses all expanded nodes.



Any help will be appreciated.

George