RFR: 8274396: Suppress more warnings on non-serializable non-transient intance fields in client libs

[Brian Burkhalter]

On Mon, 27 Sep 2021 20:21:43 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Follow-up changes to JDK-8231334. , augmentations to javac's Xlint:serial checking are out for review (#5709) and various client libraries would need some changes to pass under the expanded checks.
> 
> The changes are to suppress warnings where non-transient fields in serializable types are not declared with a type statically known to be serializable. That isn't necessarily a correctness issues, but it does merit further scrutiny.
> 
> I'll run a script to update the copyright year before pushing.

Marked as reviewed by bpb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/5723