RFR: 8257502: Builds fail with new warnings after JDK-8256254 [v2]

[Aleksey Shipilev]

On Tue, 1 Dec 2020 12:48:02 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Also fix S390X
>
> Thanks Aleksey. LGTM.

Trivial, right? So I can push as soon as tests go green?

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PR: https://git.openjdk.java.net/jdk/pull/1536