RFR: 8371164: ArrayList.addAll() optimizations

Tue Nov 4 18:35:24 UTC 2025

On Mon, 3 Nov 2025 21:51:33 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

> There needs to be some proof that this functionality is covered. If you could list existing tests that exercise the ArrayList.addAll(ArrayList) and Collections.singleton().toArray() methods, we could simply add this bug number to them.

I added two new unit tests that thoroughly cover this.  Full set of tier-1 tests passed.

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PR Comment: https://git.openjdk.org/jdk/pull/28116#issuecomment-3487487062