Name: rmT116609 Date: 03/20/2003


FULL PRODUCT VERSION :
java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-b21)
Java HotSpot(TM) Client VM (build 1.4.1-b21, mixed mode)

FULL OPERATING SYSTEM VERSION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
When using JScollPanes within a Layout that respects the
components preffered height the JScrollPane ends up with
strange sizes.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Run the code
2. Observe the bottom component is the scroll bar height
less than we would like it to be
3. Increase the window width
4. Now observe that the top component is the scroll bar
height taller then it should be
5. Now resize the window back to where it was originally
6. Observe the components are different heights than they
were when the window was originally this size
7. Resize the window to smaller than it was originally
8. Now observe both components have the wrong heights

EXPECTED VERSUS ACTUAL BEHAVIOR :
Expected the sizes of the components to be relative to the
sizes of the enclosing container.
Actual for the same size windows components are at different
sizes, depending on what sizes the windows were resized from.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import javax.swing.*;

public class ScrollPaneTester {
  public static void main(String args[]) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();
    contentPane.add(new JScrollPane(new JButton("Thin Button")),
BorderLayout.NORTH);
    contentPane.add(new JScrollPane(new JButton("A very wide Button, with long
text that may cause horizontal scrollbars to be required")), BorderLayout.SOUTH);
    frame.setSize(400, 400);
    frame.setVisible(true);
  }
}
---------- END SOURCE ----------

CUSTOMER WORKAROUND :
Make a subclass of JScrollPane with getPrefferedSize
returning the correct results.
(Review ID: 180444)
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