Request to backport "6296893: BMP Writer handles TopDown property incorrectly, for some of the compression types" into OpenJDK6

Kelly O'Hair kelly.ohair at oracle.com
Tue Sep 13 17:43:56 PDT 2011


With Phil's comments. Then I approve.

These OpenJDK6 changes are tailing off, right?
Are there many more planned?

-kto

On Sep 13, 2011, at 5:38 PM, Phil Race wrote:

> The backport looks fine and I think it far more likely that without this fix,
> we'll be writing invalid images, rather than breaking anything people
> have constructed to work around it .. ie they'd have learn to avoid this.
> 
> So OK by me to backport but I'm not sure there's a need to continue
> such backports for much longer when you can get JDK 7 instead.
> Or maybe this isn't proactive .. did you have a user/customer asking for it?
> 
> -phil.
> 
> On 9/13/11 4:57 PM, Dr Andrew John Hughes wrote:
>> On 11:59 Tue 13 Sep     , Kelly O'Hair wrote:
>>> I am scratching my head on this one.
>>> 
>>> I am not an imageio expert, but from what I read I am a bit concerned that people may have found
>>> workarounds for this problem, and this change could possibly break their workarounds.
>>> I know that sounds silly, but there it is.  Is that possible?
>>> 
>>> Can someone assure me that this change is harmless to the current complete jdk6 community?
>>> 
>> People can do all sorts of crazy hacks in their own code.   We shouldn't not fix bugs
>> because there's a risk it might break someone's code.  If that was true, nothing would
>> ever get done.
>> 
>> Besides, given the fix is already in 7, such hacks are going to be broken now anyway.
>> 
>>> -kto
>>> 
>>> On Sep 12, 2011, at 11:24 AM, Dr Andrew John Hughes wrote:
>>> 
>>>> On 10:25 Mon 12 Sep     , Pavel Tisnovsky wrote:
>>>>> Greetings,
>>>>> 
>>>>> I'd like to backport the following change:
>>>>> "6296893: BMP Writer handles TopDown property incorrectly
>>>>> for some of the compression types" into OpenJDK6
>>>>> 
>>>>> Webrev is available here:
>>>>> http://cr.openjdk.java.net/~ptisnovs/6296893/
>>>>> 
>>>>> This change has been tested without problems (including the new regression test
>>>>> included in this backport).
>>>>> 
>>>>> Can anybody please review this change&  assign bug ID to it?
>>>>> 
>>>>> Thank you in advance,
>>>>> Pavel
>>>> You already have a bug ID; 6296893.
>>>> 
>>>> Can I approve this as an OpenJDK6 reviewer?
>>>> -- 
>>>> Andrew :)
>>>> 
>>>> Free Java Software Engineer
>>>> Red Hat, Inc. (http://www.redhat.com)
>>>> 
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> 



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