[jdk25u-dev] RFR: 8358159: Empty mode/padding in cipher transformations

[Goetz Lindenmaier]

On Tue, 16 Dec 2025 20:08:16 GMT, Roland Mesde <duke at openjdk.org> wrote:

> Backporting JDK-8358159: Empty mode/padding in cipher transformations.
> 
> Cipher transformation strings with empty mode or padding components (e.g., "AES/ /NoPadding") incorrectly throw 
> NoSuchAlgorithmException instead of being processed normally. This commit fixes the issue by treating empty mode or padding strings as null values during transformation parsing.
> 
> For parity with Oracle JDK.
> 
> Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:
> 
> (Passed) - make test TEST=test/jdk/javax/crypto
> 
> Results attached:
> [linux-aarch64-specific-2-test.log](https://github.com/user-attachments/files/24200380/linux-aarch64-specific-2-test.log)
> [linux-x64-specific-2-test.log](https://github.com/user-attachments/files/24200381/linux-x64-specific-2-test.log)
> [macos-aarch64-specific-2-test.log](https://github.com/user-attachments/files/24200382/macos-aarch64-specific-2-test.log)
> [windows-x64-specific-2-test.log](https://github.com/user-attachments/files/24200383/windows-x64-specific-2-test.log)

Hi @rm-gh-8 ,
can you please do a dependend backport with [JDK-8369790](https://bugs.openjdk.org/browse/JDK-8369790) Stricter checking for cipher transformations ?  Pushing these timely will avoid intermediate test errors.

Do a 
git checkout origin/pr/95
and then
git checkout -b my_backport_8369790 or similar and prepare the backport of 8369790.

In the PR for 8369790 you must choose branch pr/95 for comparison. This should assure skara accepts the  backport as clean.

Thanks!
  Goetz.

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PR Comment: https://git.openjdk.org/jdk25u-dev/pull/95#issuecomment-3679168367