On Mon, 23 May 2022 20:28:30 GMT, Alexey Ivanov <aiva...@openjdk.org> wrote:
>> It's explained in Aleksey Shipilёv's article >> https://shipilev.net/blog/2016/arrays-wisdom-ancients/ >> >> In short, zero-sized array avoids the need for JVM to zero all array >> elements before they're overwritten with real values. On the other hand, >> this is likely negligible with very small arrays. > > In fact, there's no need to create zero-sized array, there's one already: > `EMPTY_TRAY_ARRAY`. > > Yet the code may look weird with it. > > > return icons.toArray(EMPTY_TRAY_ARRAY); We probably can extract this to the separate cleanup, the resulted code is smaller and faster. PS I have added a link to my previous message accidentally hit submit button. ------------- PR: https://git.openjdk.java.net/jdk/pull/8850
