Re: [OpenJDK 2D-Dev] RFR: 8271603: Unnecessary Vector usage in java.desktop [v4]

[Andrey Turbanov]

On Fri, 27 Aug 2021 18:28:58 GMT, Sergey Bylokhov <s...@openjdk.org> wrote:

>> Can you please elaborate?
>> As I can see if size of array is exactly the same as size of 
>> vector/arraylist, implementations are similar - they just call 
>> System.arraycopy
>> ![изображение](https://user-images.githubusercontent.com/741251/131168809-480c05d6-2775-4812-91f5-c73833f9a396.png)
>
> To confirm this you need to do the same check on every usage of added 
> toArray([]), the simpler version like "return toArray()" or return 
> toArray(new MenuElement[elements.size()]) is simpler, no need to check 
> something. I guess in some previouse fixes it was confirmed that the "return 
> toArray(new MenuElement[0])" is even faster.

Ok. Simplified

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PR: https://git.openjdk.java.net/jdk/pull/4680