构造器传参错误？this.this$0=this$0?

Question

求助求助！！

编译显示：无法将 java.awt.event.WindowAdapter中的构造器WindowAdapter应用到给定类型；实际参数列表与形式参数列表长度不同；
this.this$0=this$0;是什么意思？这个编译显示：找不到符号；

private void jbInit() throws Exception {
        this.setLayout((LayoutManager)null);
        this.view.setBackground(Color.white);
        this.view.setBounds(new Rectangle(6, 26, 537, 316));
        this.setBackground(Color.gray);
        this.addWindowListener( new WindowAdapter((CurveShow)this) {

            {
                this.this$0 =this$0;
            }

            public void windowOpened(WindowEvent e) {
                this.this$0.this_windowOpened(e);
            }

            public void windowClosing(WindowEvent e) {
                this.this$0.this_windowClosing(e);
            }
        });
        this.choicelen.setBounds(new Rectangle(69, 355, 94, 21));
        this.choicelen.addItemListener(new ItemListener() {
            {
                this.this$0 = this$0;
            }

            public void itemStateChanged(ItemEvent e) {
                this.this$0.choicelen_itemStateChanged(e);
            }
        });

求助