On Fri, 27 May 2022 16:08:03 GMT, liach <d...@openjdk.java.net> wrote:
> If `parameterList` is too slow for `List.of` copies the backing parameter > types array, wouldn't calling > `JavaUtilCollectionAccess::listFromTrustedArray` a better alternative, as it > only allocates one wrapper and has better performance on `subList` than > `Arrays.copyOfRange`? No, because `listFromTrustedArray` doesn’t allow invocation with array classes other than `Object[].class`: https://github.com/openjdk/jdk/blob/6520843f86f638fe4d1e5b3358fab5799daca654/src/java.base/share/classes/java/util/ImmutableCollections.java#L195-L222 ------------- PR: https://git.openjdk.java.net/jdk/pull/8923
