RFR: 8301220: Return value of toArray() of Сollection types from java.base should be trusted

[Alan Bateman]

On Thu, 26 Jan 2023 06:46:16 GMT, Glavo <duke at openjdk.org> wrote:

> I checked the `java.base` module, and all the `Collection#toArray()` method of collections be implemented correctly.
> 
> Their return values can be trusted, so many unnecessary array duplication can be eliminated.

What about Collections.synchronizedCollection and other methods that may wrap/delagete to collections from other modules?

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PR: https://git.openjdk.org/jdk/pull/12212