JDK-7008300 : Spurious warnings "Java HotSpot(TM) Server VM warning: time warp"
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs20
  • Priority: P3
  • Status: Closed
  • Resolution: Duplicate
  • OS: generic
  • CPU: generic
  • Submitted: 2010-12-21
  • Updated: 2014-04-08
  • Resolved: 2012-07-16
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JDK 9
9Resolved
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Description
JDK 7 / HS 20 b04 shows many warnings while running stress test:

Java HotSpot(TM) Server VM warning: time warp: 158786930 to 301

I'm not able to reproduce it with JDK 7 promoted b122 build (HS 20 b03).
301 clearly looks wrong (it is also _always_ 301).

Could be related to fix to 6751923.

Comments
EVALUATION Wean relevant GC/soft ref from javaTimeMillis() (which is TOD-based) to instead use getTimeMillis() which uses gethrtime() which is not subject to adjtime()/NTP etc.
14-02-2011