RFR: 4690476: NegativeArraySizeException from AffineTransformOp with shear [v2]

[Phil Race]

On Wed, 3 Dec 2025 01:35:14 GMT, Phil Race <prr at openjdk.org> wrote:

>> This fix does a couple of things
>> 
>> 1) AffineTransformOp.createCompatibleDestImage() and AffineTransformOp.createCompatibleDestRaster() now specify that they will throw RasterFormatException if the transformed size is too large. They were already getting an exception.
>> Note that inside the JDK only the imaging API implementation itself uses these APIs and I suspect they are rarely used by applications.
>> 
>> 2) AffineTransformOp.filter(src, null) will not throw an exception if it cannot create a destination image or raster of the required size and instead will use the source image size. This means applications which simply filter() will not need to carefully examine the transform. Sophisticated applications which want to do this can use the above "create*" methods to explicitly create the destination to find this out. 
>> 
>> So some inconsistency but I think it is a user-friendly trade-off.
>> 
>> A CSR will be needed but I want to get past initial review first.
>> Update : CSR is now created https://bugs.openjdk.org/browse/JDK-8370162
>
> Phil Race has updated the pull request incrementally with one additional commit since the last revision:
> 
>   4690476

I had thought about "the largest" image but that would be limited by memory as well, so variable and difficult to explain.

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PR Comment: https://git.openjdk.org/jdk/pull/27707#issuecomment-3608195693