JVM issue: concurrency is affected by changing the date of the system

This is the associated concurrency-interest thread: <a href="http://markmail.org/message/uo3esmzdqdtdqauv" rel="nofollow">http:&#x2F;&#x2F;markmail.org&#x2F;message&#x2F;uo3esmzdqdtdqauv</a>