Method getArchivableExpandedState

unused/javax/swing/JTree.java:3142–3169

Returns an object that can be archived indicating what nodes are expanded and what aren't. The objects from the model are NOT written out.

()

     * written out.
     */
    private Object getArchivableExpandedState() {
        TreeModel       model = getModel();

        if(model != null) {
            Enumeration<TreePath> paths = expandedState.keys();

            if(paths != null) {
                Vector<Object> state = new Vector<Object>();

                while(paths.hasMoreElements()) {
                    TreePath path = paths.nextElement();
                    Object     archivePath;

                    try {
                        archivePath = getModelIndexsForPath(path);
                    } catch (Error error) {
                        archivePath = null;
                    }
                    if(archivePath != null) {
                        state.addElement(archivePath);
                        state.addElement(expandedState.get(path));
                    }
                }
                return state;
            }
        }
        return null;
    }

    /**
     * Updates the expanded state of nodes in the tree based on the