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Java Application Time Sync Problem

JVM is default to calculate the current system date time using the number CPU ticks when it is started.

This may be a problem if you operating system is time synched. You may notice the JVM time is different from the OS time.

See below

http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1234755920347+28353475&threadId=997540

http://www.javakb.com/Uwe/Forum.aspx/java-programmer/8471/HP-UX-Java-1-3-1-02-date-time-differences

One solution is to use -XX:+UseGetTimeOfDay but it may have performance impact.


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  1. Sarkari Naukri | Dec 2, 2015 | Reply

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  1. From Java: Time Synchronization Trick in Programming | twit88.com | Oct 14, 2009

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