One of the major requirment for the Improve java update is to avoid the download in peak hours to control the download traffic in peak intervals.

Please not timings are mentioned in IST format (Where ever it is not specified).

How to Reproduce

1.) Install JRE 6u10. (http://j2se.east.sun.com/arc/1.6.0_10/nightly/<b09 pit>)

2.) Create the UpdateServletURL registry entry and RunAtExactSchedule (set it to 20:00).

3.) Open JCP and set the update schedule to daliy and say 8 PM.

3.) Modify the "predownload" in Version XML file. "predownload" should contains the off peak hours interval setting in GMT format. Make sure 8 PM local time (IST) does not fall under the interval. For example 8 PM IST is 2:30 GMT; set predownload to 16,23

4.) Modify the system data and time (7:52 PM).

5.) run the "jusched.exe".

Wait for the update to happen. Java Update bubble will pop up in the system tray.

Workaround:
 N/A
If Maximum tries (NumTries) for AU are set in peak hours, "jusched" should not rewrite and ignore it even if this is first attempt. We need to make these changes for Automation to work properly.