RFR: 4690476: NegativeArraySizeException from AffineTransformOp with shear
Phil Race
prr at openjdk.org
Wed Oct 8 22:11:16 UTC 2025
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.
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Commit messages:
- 4690476
Changes: https://git.openjdk.org/jdk/pull/27707/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27707&range=00
Issue: https://bugs.openjdk.org/browse/JDK-4690476
Stats: 141 lines in 2 files changed: 131 ins; 1 del; 9 mod
Patch: https://git.openjdk.org/jdk/pull/27707.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/27707/head:pull/27707
PR: https://git.openjdk.org/jdk/pull/27707
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