RFR: 8269689: Update --release 17 symbol information for JDK 17 build 31

Mon Jul 19 07:27:53 UTC 2021

On Sun, 18 Jul 2021 19:33:20 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Usual kind of  updates for the symbol information in JDK 18 to reflect changes in the JDK 17 API. Bug fixes with API changes since JDK 17 b28 include JDK-8266313, JDK-8268972, and JDK-8266269.

Looks good, thanks!

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Marked as reviewed by jlahoda (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4820