I have a JFrame which has 3 JPanels in GridBagLayout..

Now, when I minimize a windows, after a certain limit, the third JPanel tends to disappear. I tried setting minimizing size of JFrame using setMinimumSize(new Dimension(int,int)) but no success. The windows can still be minimized.

So, I actually want to make a threshhold, that my window cannot be minimized after a certain limit.

How can I do so?

Code:-

import java.awt.Dimension;

import javax.swing.JFrame;

public class JFrameExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Hello World");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setMinimumSize(new Dimension(400, 400));
        frame.setVisible(true);
    }
}

Also:

shadyabhi@shadyabhi-desktop:~/java$ java --showversion
java version "1.5.0"
gij (GNU libgcj) version 4.4.1

Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Usage: gij [OPTION] ... CLASS [ARGS] ...
          to invoke CLASS.main, or
       gij -jar [OPTION] ... JARFILE [ARGS] ...
          to execute a jar file
Try `gij --help' for more information.
shadyabhi@shadyabhi-desktop:~/java$

Gives me output like