Timer Event Does Not Fire If OS Time Is Turned Back (e.g. Back From Daylight Saving Time) (Doc ID 1587759.1)

Last updated on SEPTEMBER 18, 2023

Applies to:

Goal

The purpose is to demonstrate that EJB 3.0 interval timer is DST aware.

This will create an interval timer whose first expiration occurs after a specified duration (5 seconds), and whose subsequent expirations occur after a specified interval (5 seconds).

It is not correct to demonstrate the DST-awareness of EJB interval timer just by moving back the OS clock a couple of minutes. If you do that the ejb timer will freeze.

Solution

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