FULL PRODUCT VERSION :
Java(TM) SE Runtime Environment (build 1.6.0_01-ea-b03)
Java HotSpot(TM) Client VM (build 1.6.0_01-ea-b03, mixed mode)

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

A DESCRIPTION OF THE PROBLEM :
Since the CDS feature was introduced in 5.0 it always ceases to work 2-times a year just immediately after Daylight saving change takes place. To make it work again one have to "dump" the shared archive file again.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
1) install jre or jdk on windows
2) verify that java.exe -Xshare:on works
3) wait for start of end of daylight saving time change
4) see that java.exe -Xshare:on fails

ERROR MESSAGES/STACK TRACES THAT OCCUR :
An error has occured while processing the shared archive file.
A jar file is not the one used while building the shared archive file.
Error occurred during initialization of VM
Unable to use shared archive.

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Rebuild the shared archive file twice a year manually is NOT an option for JOE the user rendering CDS useless.