助下面的异常信息是怎么产生的?

Question

下面的异常信息是怎么产生的.大概只知道这些信息与JTable的绘制有关,但具体不知道为什么会出现.google了一下,相关的信息及少.好像是一个bug.不知道怎么样解决这个问题.有见过这样异常信息的朋友吗?请指点下.
[code="java"]
at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2076)

at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1977)

at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1773)

at javax.swing.plaf.ComponentUI.update(ComponentUI.java:143)

at javax.swing.JComponent.paintComponent(JComponent.java:763)

at javax.swing.JComponent.paint(JComponent.java:1027)

at javax.swing.JComponent.paintToOffscreen(JComponent.java:5122)

at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1472)

at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1403)

at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:293)

[/code]

Answer 1

错误是不是
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException?

你是不是把加入jtable的数据的逻辑加入了awt-eventqueue

这类错误在jdk1.4出现的比较少，1.6就比较多，应该swing性能有了优化，结果处理界面的时候不同步，应该将这类操作放在swingworker中。