Integrated: 8305785: Avoid redundant HashMap.containsKey call in java.util.regex

[Andrey Turbanov]

On Mon, 3 Apr 2023 16:58:15 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> `Pattern.namedGroups` and `Matcher.namedGroups` contains only non-null values. It means instead of separate `containsKey`+`get` calls, we can use single `HashMap.get` call and then compare result with null.
> Result code is a bit simpler and faster.

This pull request has now been integrated.

Changeset: 6b65e575
Author:    Andrey Turbanov <aturbanov at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/6b65e5754cc96c812892077881fc069e02fedc62
Stats:     10 lines in 2 files changed: 3 ins; 0 del; 7 mod

8305785: Avoid redundant HashMap.containsKey call in java.util.regex

Reviewed-by: stsypanov, jpai

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PR: https://git.openjdk.org/jdk/pull/13303