java.util.zip.ZipError seems unused

[Glavo]

I am the maintainer of HMCL and we need to catch ZipError in our program
because our program needs to be compatible with Java 8:

https://github.com/HMCL-dev/HMCL/blob/85b68ad135267bc33e03c3624b1bced9b7804c39/HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/CompressingUtils.java#L218-L220

I'd love to see it deprecated, but I'm sure there are some use cases for
it, so please evaluate the risks carefully.

Glavo

On Sun, Jun 30, 2024 at 5:42 PM Eirik Bjørsnøs <eirbjo at gmail.com> wrote:

> Hi!
>
> The java.util.zip.ZipError class seems unused in OpenJDK. I assume this is
> legacy from the native ZIP implementation in Java 8.
>
> This exception class extends InternalError and seems to have been added in
> Java 6 to help compatibility with existing code catching InternalError
> (JDK-4615343)
>
> This change also introduced the TestZipError test, which verified that
> ZipError was thrown while enumerating a ZIP file which was changed after
> being opened. The reimplementation of the ZIP implementation to Java
> (JDK-8145260) updated this test to expect a ZipException instead of the
> ZipError.
>
> Given that this class has now fallen out of use in OpenJDK, should we:
>
> 1: Deprecate it
> 2: Deprecate it for removal
> 3: Do nothing, keeping it around has a low cost
> 4: Something else
>
> It would also be useful if someone with access to a large code corpus
> could search for usages of this class so we could assess compatibility
> concerns of removing it.
>
> Thanks,
> Eirik.
>
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