build error in VolumeViewerTesting project

I got build error when when I try to build the VolumeViewerTesting project. I think this error may not be project specific and some of you may know the cause. The class, the getVisible() method locates, is called WindowLayoutType. It is generated dynamically. Somehow the getVisible() is not there.

C:\workspace\JOGL\volumeViewer\proj\VolumeViewerTesting\src\com\kitfox\volume\test\TestFrame.java:474: error: cannot find symbol
        dlg.setVisible(win.getVisible());
  symbol:   method getVisible()
  location: variable win of type WindowLayoutType
C:\workspace\JOGL\volumeViewer\proj\VolumeViewerTesting\src\com\kitfox\volume\test\VolViewWebstartFrame.java:621: error: cannot find symbol
        dlg.setVisible(win.getVisible());
  symbol:   method getVisible()
  location: variable win of type WindowLayoutType
2 errors