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Is the Oracle JRockit Time Zone Updater the same as the Sun TZUpdater?

April 26, 2017jrockit Oracle Sun time tzupdater updater zone

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Is the Oracle JRockit Time Zone Updater the same as the Sun TZUpdater?

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No, not exactly, but very close. The Sun TZUpdater caused certain JRockit versions on Windows to crash when clearing time zone data caches. Therefore, the Oracle version does not clear those caches. As a consequence, the Oracle version of the tool cannot perform validation tests for JRE upgrades right after the update is made since the caches might contain old time zone data. The workaround is to run the TZUpdater with the -t flag after you have upgraded a JRE to validate that the time zone data is updated. See Oracle JRockit Time Zone Updater for more information on how to use the tool.