Run multiscreen test on win98 and NT, hit ctrl-c to terminate the program, the following exception is thrown:

Exception occurred during event dispatching:
java.lang.NullPointException: component argument pData
at Sun.awt.font.NativeFontWrapper.drawStringIntDiscrete(Native Method)
at Sun.java2d.loops.drawStringRGB.DrawString(TextRendering.java:382)
at Sun.java2d.pipe.LoopPipe.drawString(LoopPipe.java:227)
at sun.java2d.SunGraphics2D.drawString(SunGraphics2D.java:2605)
at GCCanvas.paint(ScreenTest.java:140)
at java.awt.Component.update(Component.java:2117)

Sometimes the exception thrown on:
at Sun.awt.windows.Win32Renderer.doFillRect(Native Method)

This bug is not reproduciable for every run, sometimes it will happen, sometimes not. But over 50% of time, it is reproduciable.

It did not happen on kestrel, so it is a regression.