[OpenJDK 2D-Dev] <2D Dev> [7u6] Request for review: 7027300 Unsynchronized HashMap access causes endless loop

Phil Race philip.race at oracle.com
Tue Jun 19 16:24:13 UTC 2012


Approved.

-phil.

On 6/19/2012 2:47 AM, Andrew Brygin wrote:
> Hi Vladislav,
>
>  the fix looks fine to me.
>  Please make sure you get a second reviewer.
>
> Thanks,
> Andrew
>
> On 19.06.2012 13:41, Vladislav Karnaukhov wrote:
>> Hi Andrew and all,
>>
>> please see updated webrev here: 
>> http://cr.openjdk.java.net/~vkarnauk/7027300/webrev.01/
>>
>> Regards,
>> - Vlad
>>
>> On 19.06.12 11:35, Andrew Brygin wrote:
>>> Hello Vladislav,
>>>
>>>  the fix itself seems to be pretty close to the fix for jdk8,
>>>  but introduces different import order, and an additional comment.
>>>
>>>  From my point of view, we should keep jdk7 and jdk8 sources as close
>>>  as it is possible just to reduce the backporting overhead.
>>>  In this particular case, I do not see a strong need in mentioned 
>>> modifications
>>>  so could you please consider to do a direct backport of the jdk8 
>>> change?
>>>
>>> Thanks,
>>> Andrew
>>>
>>> On 18.06.2012 17:31, Vladislav Karnaukhov wrote:
>>>> Hello,
>>>>
>>>> please review a fix for CR 7027300: Unsynchronized HashMap access 
>>>> causes endless loop.
>>>>
>>>> The issue is that SunLayoutEngine.getEngine uses non-synchronized 
>>>> HashMap, which may cause an endless loop.
>>>> The fix is to use ConcurrentHashMap instead of HashMap.
>>>>
>>>> Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7027300
>>>> Webrev: http://cr.openjdk.java.net/~vkarnauk/7027300/webrev.00/
>>>>
>>>> Regards,
>>>> - Vlad
>>>
>>
>




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