Integrated: 8250563: Add KVHashtable::add_if_absent

[Ioi Lam]

On Tue, 8 Sep 2020 01:31:21 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> Please review this XS change. I added a new **KVHashtable::add_if_absent** function (modeled after
> ResourceHashtable::put_if_absent from JDK-8244733).
> - I used "add" instead of "put" to be consistent with the naming convention in utility/hashtable.hpp
> - I also fixed a type in the comments in resourceHashtable.hpp
> 
> Running mach5 tiers1/2.

This pull request has now been integrated.

Changeset: 001e51d9
Author:    Ioi Lam <iklam at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/001e51d9
Stats:     34 lines in 4 files changed: 3 ins; 21 del; 10 mod

8250563: Add KVHashtable::add_if_absent

Reviewed-by: ccheung, coleenp

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PR: https://git.openjdk.java.net/jdk/pull/66