FULL PRODUCT VERSION :
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode, sharing)

Also tested on:
java version "1.5.0_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

EXTRA RELEVANT SYSTEM CONFIGURATION :
HyperThreaded Intel Processor, 2 GB of system memory

A DESCRIPTION OF THE PROBLEM :
Swing fails to paint _ALL_ of the text on any GUI if it is started with a large heap size.

For example, on my pc - '-Xmx1050M' works ok.
However, the same application launched with '-Xmx1100M' fails.



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run my provided class (without setting any heap size parameters)

(alternatively - use any java swing application)



Now run the class again with your heap size set very high - for example - '-Xmx1100M'

Note that all text in the GUI fails to paint.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The GUI should behave the same no matter what the max heap size is set to.
ACTUAL -
No text appears in any Swing component.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package bugs;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;

public class BugJavaGui extends JFrame{

	public BugJavaGui()
	{
		final JComboBox jComboBox = new JComboBox();
		jComboBox.setEditable(true);
		jComboBox.addItem("item 1");
		jComboBox.addItem("item 2");
		jComboBox.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(ActionEvent e) {
				System.out.println("Selected Item Changed");
				System.out.println(jComboBox.getSelectedIndex());
				System.out.println();
			}
		});

		JButton jButton = new JButton();
		jButton.setText("click me");
		jButton.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(ActionEvent e) {
				System.out.println("Button was clicked");
				System.out.println(jComboBox.getSelectedItem());
			}
		});
		this.getContentPane().add(jComboBox, BorderLayout.NORTH);
		this.getContentPane().add(jButton, BorderLayout.SOUTH);

		this.setSize(new Dimension(200, 200));
		this.setVisible(true);
	}

	public static void main(String[] args) throws Exception
	{
		BugJavaGui bug = new BugJavaGui();
	}
}
---------- END SOURCE ----------

Release Regression From : 1.4.2
The above release value was the last known release where this 
bug was known to work. Since then there has been a regression.