RFR: 8274143 Disable "invalid entry for security.provider.X" error message in log file when security.provider.X is empty

[Weijun Wang]

On Fri, 24 Sep 2021 08:01:07 GMT, Daniel Jeliński <github.com+30433125+djelinski at openjdk.org> wrote:

> The default list of providers defined in java.security file can be overridden with a custom file, declared with `-Djava.security.properties=/path/to/custom.security` command line parameter.
> If the new list of providers is shorter than the original one, it is necessary to add an empty entry to terminate the list, like:
> 
> security.provider.1=BCFIPS C:HYBRID;ENABLE{All}
> security.provider.2=SUN
> security.provider.3=BCJSSE fips:BCFIPS
> security.provider.4=
> 
> otherwise some providers from the default list will still be used.
> 
> Currently Java outputs an error message on standard error when it encounters an empty entry on the provider list. This PR silences that message.

Changes looks fine. I've also added a `noreg-trivial` label to the JBS bug.

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Marked as reviewed by weijun (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5674