question: public ModpackFileSelectionPanel ( WizardController controller , Map wizardData , File gameDir , BiFunction < String , Boolean , Integer > blackList ) { initComponents ( ) ; this . controller = controller ; this . wizardData = wizardData ; this . blackList = blackList ; CheckBoxTreeNode root = create ( gameDir , "minecraft" ) ; jTree1 . setModel ( new DefaultTreeModel ( root ) ) ; jTree1 . setCellRenderer ( new CheckBoxTreeCellRenderer ( ) ) ; jTree1 . addMouseListener ( new CheckBoxTreeNodeSelectionListener ( ) ) ; wizardData . put ( "blackList" , root ) ; }
target:  Creates new form ModpackFileSelectionPanel