FULL PRODUCT VERSION :
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) Client VM (build 25.45-b02, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
GroupLayout of JPanel that contains a JScrollPane, that contains a JTextArea; and a JButton. When the height of the JTextArea is very large, GroupLayout fails to correctly lay out the JScrollPane and JButton within the panel.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Set TEXT_HEIGHT = 32800 in attached code.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JButton is visible
ACTUAL -
JButton is not visible

REPRODUCIBILITY :
This bug can be reproduced always.

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

public class GroupLayoutBug {
private static final int TEXT_HEIGHT = 32700;
// If the value of TEXT_HEIGHT is changed to 32800
// "button" disappears
// private static final int TEXT_HEIGHT = 32800;

public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(800, 600);
JPanel panel = new JPanel();
JTextArea text = new JTextArea();
text.setMinimumSize(new Dimension(1000, TEXT_HEIGHT));
text.setPreferredSize(new Dimension(1000, TEXT_HEIGHT));
JScrollPane scroll = new JScrollPane(text);
JButton button = new JButton("OK");
GroupLayout layout = new GroupLayout(panel);
layout.setHorizontalGroup(
layout.createParallelGroup(GroupLayout.Alignment.LEADING)
.addComponent(scroll)
.addComponent(button));
layout.setVerticalGroup(
layout.createSequentialGroup()
.addComponent(scroll)
// Alternatively, if TEXT_HEIGHT is 32800, the max height of
// "scroll" can be changed to fix the layout
// .addComponent(scroll, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE, 20000)
.addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button));
panel.setLayout(layout);
frame.getContentPane().add(panel, BorderLayout.CENTER);
frame.setVisible(true);
}
}
---------- END SOURCE ----------