Integrated: Update to JDK 16

[Erik Helin]

On Mon, 12 Apr 2021 14:05:22 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that updates the JDK used for building and running Skara to JDK 16. As part of the update I had to remove `--illegal-access=deny` from Skara's module plugin and I also had use `LogRecord.getLongThreadId` instead of the (since JDK 16) deprecated method `LogRecord.getThreadId`.
> 
> Testing:
> - [x] `make images` locally
> - [x] `make test` locally
> 
> Thanks,
> Erik

This pull request has now been integrated.

Changeset: 3e1e8058
Author:    Erik Helin <ehelin at openjdk.org>
URL:       https://git.openjdk.java.net/skara/commit/3e1e8058
Stats:     21 lines in 7 files changed: 0 ins; 1 del; 20 mod

Update to JDK 16

Reviewed-by: erikj

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PR: https://git.openjdk.java.net/skara/pull/1114