FULL PRODUCT VERSION :
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b57)
Java HotSpot(TM) Client VM (build 1.6.0-ea-b57, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Linux blade 2.6.13-02 #2 Fri Sep 2 11:43:56 Local time zone must be set--see zic manua i686 Mobile Intel(R) Pentium(R) 4 - M CPU 1.90GHz GenuineIntel GNU/Linux

A DESCRIPTION OF THE PROBLEM :
When I put a JTree in a JScrollPane and the texts in nodes are to long
and I scroll horizontal back and forth, then the text in tree nodes disappear.
The icons of the nodes are still visible.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) compile the test case with following command:

    javac TreeBug

2) run the test case with following command:

    java TreeBug

3) when the window is visible, move the horizontal
     scrollbar with the mouse cursor to the right and
     then back to the left.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The text in the nodes are visible.
ACTUAL -
The text in the nodes are disappear.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;

/**
 * @author Andrej Golovnin
 * @version $Revision$
 */
public class TreeBug {

    private static final String[] NODES = {
        "The Java Tutorial: A Short Course on the Basics",
        "The Java Tutorial Continued: The Rest of the JDK",
        "The JFC Swing Tutorial: A Guide to Constructing GUIs",
        "The Java Virtual Machine Specification",
        "The Java Language Specification"};

    public static void main(String[] args) {
        JFrame frame = new JFrame("TreeBug");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JTree tree = new JTree(NODES);
        frame.getContentPane().add(new JScrollPane(tree));
        frame.pack();
        frame.setSize(frame.getWidth() - 30, frame.getHeight());
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

}

---------- END SOURCE ----------

Release Regression From : 5.0
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.