RFR: 8340670: Policy.UNSUPPORTED_EMPTY_COLLECTION.isReadOnly does not return true

[Artur Barashev]

On Tue, 24 Sep 2024 16:49:50 GMT, Sean Mullan <mullan at openjdk.org> wrote:

> I think this fix is trivial and obvious enough that you don't need a test; however if you don't plan to add one, please add a noreg-trivial label to the bug so that it doesn't get flagged as missing a test.

Yes, I also thought the fix is pretty trivial to warrant its own test case. But I got this message from the openjdk bot: `The label noreg-trivial is not a valid label.`

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PR Comment: https://git.openjdk.org/jdk/pull/21165#issuecomment-2371858181