RFR: 8304837: Classfile API throws IOOBE for MethodParameters attribute without parameter names

[Julian Waters]

On Thu, 23 Mar 2023 19:45:21 GMT, Hannes Greule <duke at openjdk.org> wrote:

> After merging master into https://github.com/openjdk/jdk/pull/9862, we encountered test failures (e.g., https://github.com/SirYwell/jdk/actions/runs/4500940829/jobs/7923018438#step:9:2541). The Classfile API tries to read from constant pool index 0 if a MethodParameters attribute has an entry without name.
> 
> The fix is simply using `readUtf8EntryOrNull` instead of `readUtf8Entry`. The related code already correctly handles nullability.
> 
> I didn't find an appropriate test class so I added a new one. Let me know if there's a better place or if the test can be improved somehow.
> 
> As I don't have a JBS account, someone needs to create a bug report there for me. Thanks.

Oops, looks like I was too late to create the issue haha

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PR Comment: https://git.openjdk.org/jdk/pull/13167#issuecomment-1481960385