I have a Swing vector-program similar to Dia targeting RAD. There are some plug-ins that let you create structures like Rectangle, Text and Circle but also complex types like Table-Columns.generate files like Spring-Roo-Script, grails-script, SQL-Files and svg-Files.In the Center you have the Drawing-Panel (DrawPanel), on the right side you have the component-tree.In the DrawPanel class, this is the function select that I need a review for. This function changes the selected nodes in the Tree on the right./** The main tab where paint areas are. Never <code>null</code>. */@InjectTab tab;public void select(Set<? extends TreeNode> newSelection,        boolean layersModified) {    boolean inAssertMode = false;    assert inAssertMode = true;    if (inAssertMode && getSelection().equals(newSelection)) {        if (!layersModified) {            throw new UnnecessaryOperationException(Select tree Nodes,                    getSelection(), newSelection);        }        LOG.severe(I did not noticed about changed selection,                 + you only notify about modified layers!);    }    Set<TreePath> c = new HashSet<>();    for (TreeNode newSelected : newSelection) {        c.add(new TreePath(newSelected));    }    TreePath[] array = c.toArray(new TreePath[0]);    setSelectionPaths(array);    if (layersModified) {        tab.getCurrentDrawPanel().notifyLayersModified();    }}As you will notice, the code above is only executed if asserations are enabled.
Setting selected elements in a UI tree widget
java