Frame is not setting from Maximized state to Normal state in Solaris, when frame.setExtendedState(Frame.NORMAL) is used

Compile and Run ChangeStateToNormal.java

Maximize the Frame using Maximize button,
Click on Normal Button in frame,
if the Frame is not set to Normal state, bug is reproduced

I reproduced the bug in

Sparc Solaris 7
Sparc Solaris 8
Linux Redhat 6.2

Its working fine in Linux Redhat 7.0