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As documented in http://www.netbeans.org/issues/show_bug.cgi?id=37133, it is not possible to autoupdate updater.jar: As per http://www.netbeans.org/issues/show_bug.cgi?id=37010: -------------------------------------- Comments From Petr Hrebejk: Updating the updater.jar is not (supported). Since updatersplash.gif is part of updater.jar, this means that the splash image cannot be updated in a patch later. To solve this issue, updater.jar can read the gif from another known location. This would allow us to update the file, in case a problem was found in the gif.
*** This issue has been marked as a duplicate of 46225 ***