In Kestrel Build FCS-H, JButton can not be operated in WindowsLookAndFeel
and MotifLookAndFeel.When press the JButton, there is no response.
But in MetalLookAndFell, JButton works fine.

This bug doesn't exist in build FCS-G. It exist in those OS(both hotspot and classic):
Win95/98/NT : WindowsLookAndFeel
                         MotifLookAndFeel
Solaris sparc 2.6, 2.7 : MotifLookAndFeel
        Solaris x86 2.6 2.7 : MotifLookAndFeel
To reproduce this bug,
1. Get the 4 attached files.
2. Move 3 gif file to s subdir named images
        3. modify source code to suitable LookAndFeel
4. Compile and run it.