Hello,
Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8130735
webrev: http://cr.openjdk.java.net/~ssadetsky/8130735/webrev.00/
The root cause is the setting larger expiration time for the timer which
is already inserted into the delay queue. So all timers behind the timer
cannot be executed earlier than its expiration time. This happens very
rare only for repeated timers and only if user uses the Swing timer API
inaccurately (call start() without stop()).
The fix eliminates this possibility by introducing a check if the timer
was already restarted concurrently.
It is difficult to write test because I could not reliably reproduce the
issue for a reasonable time.
--Semyon
