[jdk11u-dev] RFR: JDK-8285591: [11] add signum checks in DSA.java engineVerify

[Matthias Baesken]

On Mon, 25 Apr 2022 14:24:51 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> 8277233 added signum checks to the engineVerify method in DSA.java in jdk17+.
> To be consistent with higher releases, it would be good to check also in jdk11.

I changed the copyright year to 2021.

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/1045