/** * When GuiPackage is requested for the first time, it should be given * handles to JMeter's Tree Listener and TreeModel. * * @param listener * the TreeListener for JMeter's test tree * @param treeModel * the model for JMeter's test tree */ public static void initInstance(JMeterTreeListener listener, JMeterTreeModel treeModel) { GuiPackage guiPack = new GuiPackage(treeModel, listener); guiPack.undoHistory.add(treeModel, "Created"); GuiPackage.guiPack = guiPack; }