[11] RFR(S): 8202848: -XX:+ExecuteInternalVMTests asserts with "assert(cd.valid() == true) failed: failed on a valid DirectivesParser string"

[Thomas Stüfe]

Thanks for fixing, Tobias! Looks good.

..Thomas

On Fri, May 18, 2018 at 12:54 PM, Tobias Hartmann
<tobias.hartmann at oracle.com> wrote:
> Hi,
>
> please review the following patch:
> https://bugs.openjdk.java.net/browse/JDK-8202848
> http://cr.openjdk.java.net/~thartmann/8202848/webrev.00/
>
> The problem is that with some locale settings (for example, LC_NUMERIC = de_DE.UTF-8), sscanf in
> JSON::parse_json_number() treats "," as the decimal separator instead of ".". As a result, the value
> of "VectorizeDebug: 1," in one of the DirectivesParser tests is read as "1," and we skip the comma
> at the end of the line.
>
> This only affects VM internal tests, directive files specified via -XX:CompilerDirectivesFile= are
> parsed before the locale is set to the systems default. We should therefore explicitly set the "C"
> locale for the VM internal DirectivesParser tests.
>
> Thanks,
> Tobias