JColorChooser swatch cannot accessed from keyboard

FULL PRODUCT VERSION :
java version "1.7.0_01"
Java(TM) SE Runtime Environment (build 1.7.0_01-b08)
Java HotSpot(TM) Client VM (build 21.1-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
It is OS independent. The OS I tested is Linux d61 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:34:50 UTC 2010 i686 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
It is not able to move the focus to SwatchPanel with TAB, and cannot select color using keyboard, this can be seen in SwingSet2 demo.

Steps:
1. run SwingSet2 demo
2. click on JColorChooser demo
3. click Background button and Swatches panel appears.
4. Press Tab key => focus moves to OK button as shown in this image http://cr.openjdk.java.net/~zhouyx/OJDK-61/screenshot_1.png

For more information, please refer to http://mail.openjdk.java.net/pipermail/swing-dev/2012-August/002189.html

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Steps:
1. run SwingSet2 demo
2. click on JColorChooser demo
3. click Background button and Swatches panel appears.
4. Press Tab key => focus moves to OK button as shown in this image http://cr.openjdk.java.net/~zhouyx/OJDK-61/screenshot_1.png

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Focus goes to colors and can be selected using space bar. Like http://cr.openjdk.java.net/~zhouyx/OJDK-61/screenshot_2.png

REPRODUCIBILITY :
This bug can be reproduced always.