The meaning of -Xlint:none,serial

[Archie Cobbs]

Thanks for the confirmation. I've created JDK-8352612
<https://bugs.openjdk.org/browse/JDK-8352612> to track it.

-Archie

On Fri, Mar 21, 2025 at 7:27 AM Maurizio Cimadamore <
maurizio.cimadamore at oracle.com> wrote:

> I always assumed what you assumed :-)
>
> E.g. _all_ is a special markers which selects all, _none_ one that selects
> nothing. From there you can remove (in the first case) or add (in the
> second case).
>
> If it doesn't work like that, I'd say that's a bug.
>
> Maurizio
> On 20/03/2025 20:16, Archie Cobbs wrote:
>
> What is the intended meaning of a javac flag like -Xlint:none,serial
> (where you might replace "serial" with any other non-mandatory lint
> category).
>
> I always assumed that this means "Disable all lint categories, and then
> enable the "serial" category". And in fact, that's how it works for
> mandatory lint categories like "unchecked".
>
> But for non-mandatory lint categories, what it actually means is "Disable
> all lint categories, period." (which happens here
> <https://github.com/openjdk/jdk/blob/56038fb5a156568cce2e80f5db18b10ad61c06e4/src/jdk.compiler/share/classes/com/sun/tools/javac/util/Log.java#L370>
> and here
> <https://github.com/openjdk/jdk/blob/56038fb5a156568cce2e80f5db18b10ad61c06e4/src/jdk.compiler/share/classes/com/sun/tools/javac/util/Log.java#L722>).
>
>
> Is that intended? It seems surprising, and is asymmetrical with the
> meaning of -Xlint:all,-serial, which means the converse "Enable all lint
> categories, and then disable the "serial" category".
>
> Thanks,
> -Archie
>
> --
> Archie L. Cobbs
>
>

-- 
Archie L. Cobbs
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