[OpenJDK 2D-Dev] RFR: 8130737: AffineTransformOp can't handle child raster with non-zero x-offset

[Phil Race]

If a child raster is created with a non-zero x-offset then
subsequently in the code that validates the raster for
imaging operations we may incorrectly calculate that
the image exceeds the data buffer. A test has been
created that exercises each of the code paths with
the buggy test :

https://bugs.openjdk.java.net/browse/JDK-8130737
http://cr.openjdk.java.net/~prr/8130737/

-phil.