Shortcut links disappear after update Java 6u14 to Java 6u15 via Updater (JCP)

FULL PRODUCT VERSION :
java version "1.6.0_14"
Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode, sharing)

Update to

java version "1.6.0_15"
Java(TM) SE Runtime Environment (build 1.6.0_15-b03)
Java HotSpot(TM) Client VM (build 14.1-b02, mixed mode, sharing)

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

A DESCRIPTION OF THE PROBLEM :
The problem occurs when i update Java 6u14 to Java 6u15 through the Taskbar icon or through Java Control Panel's update tab.
After the update finishes, the Desktop- and StartMenu-Shortcuts disappear.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Deinstalling all Java6 Versions.
- Installing Java6u14
- Installing Webstart App
- Updating to Java6u15 through the Taskbar icon or through Java Control Panel's update tab.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Shortcuts should keep remained in the Desktop and in the StartMenu after updating Java.

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Reinstalling the Shortcuts though Java Control Panel

Release Regression From : 6u14
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.