Question on status of a few bugs in OpenJDK 6

Kelly O'Hair kelly.ohair at
Thu Mar 8 09:09:43 PST 2012

OpenJDK6 is driven mostly by the contributors. It is not an extremely active development forest.

The jdk6-dev AT alias is the communication path, and yes it's very quiet of late.

I usually do the approvals of changes and will co-ordinate any new releases, but I let the community
drive what gets into it for the most part. Hopefully I'm approving the correct changes, and rejecting
the right ones. I would of course require that any OpenJDK6 hotspot changes will have been reviewed
by the appropriate hotspot team members.
Significant changes might not be a good idea, with OpenJDK6 it's  mostly 'let sleeping dogs lie' ;^)


On Mar 8, 2012, at 3:37 AM, Krystal Mok wrote:

> Hi all,
> Guess I'm asking on the wrong list, but I don't know which list I should be sending this to for OpenJDK 6-only  issues. The jdk6-dev list is mostly silent now, doesn't seem to be the right place, neither.
> Maybe I should be asking the sustaining team?
> I was looking at what changes went into recent OpenJDK 6 releases. Turns out OpenJDK 6 build 23 is the closest version to JDK 6 update 25, and OpenJDK 6b24 is the closest version to 6u30. Reading through the release changes [1][2], though, tells that:
> 1. The loop optimization bug that crashes the VM is fixed:
>   7070134: Hotspot crashes with sigsegv from PorterStemmer
> 2. A few other related bugs aren't included in OpenJDK 6 yet, as of now:
>   5091921: Sign flip issues in loop optimizer
>   7052494: Eclipse test fails on JDK 7 b142
>   7004535: Clone loop predicate during loop unswitch
>   7068051: SIGSEGV in PhaseIdealLoop::build_loop_late_post on T5440
>   7044738: Loop unroll optimization causes incorrect result
>   7077439: Possible reference through NULL in loopPrdicate.cpp:726
> I suppose some of these fixes are actually in the product JDK 6u29+ already, like 7044738.
> So, questions:
> * Could anyone help identify whether these bugs affect OpenJDK 6 or not?
> * If they do, what are the plans for porting the fixes back to OpenJDK 6?
> * And what is the general plan for future maintence of OpenJDK 6?
> * Is there any place in the public that we can track what's going to be backported into OpenJDK 6?
> * Will it sort of EOL along with the product JDK 6?
> Thanks,
> Kris Mok
> [1]:
> [2]:

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