No push of hs-rt to jdk9/hs this week

[Jesper Wilhelmsson]

Hi,

There is a regression, JDK-8087153 [1], in hs-rt that was found when analyzing 
the Tuesday nightlies yesterday. The causing change is most likely JDK-8054386. 
Investigation is ongoing and for now we hope to fix the bug rather than backing 
out the change.

The current plan is to not push anything to main until this issue has been 
resolved. There are a few changes that came in before JDK-8054386:

8081219: hs_err improvement: Add event logging for class redefinition to the 
hs_err file
8080947: Add uint as a valid VM flag type
8081382: Make flags ParallelGCThreads and ConcGCThreads of type uint
7097567: G1: abstract and encapsulate collector phases and transitions between them

We could push just these without messing with the mercurial history etc. Let me 
know asap if any of these are critical to get in this week.

Thanks,
/Jesper


[1] https://bugs.openjdk.java.net/browse/JDK-8087153