On Fri, 2 Jun 2023 17:25:20 GMT, Joe Darcy <da...@openjdk.org> wrote:
>> src/java.base/share/classes/java/lang/Class.java line 1884:
>>
>>> 1882: reflective=true)
>>> 1883: public boolean isUnnamedClass() {
>>> 1884: return isSynthetic() && PreviewFeatures.isEnabled() &&
>>> isTopLevelClass();
>>
>> Should this include more tests such as not abstract, final, package access,
>> in an unnamed package, etc to accurately determine it's an unnamed class?
>
> Hmm. I think adding at least a check for ACC_FINAL should be fine as it
> should have near-zero cost on top of the existing predicate once the method
> get compiled. (In future iterations of the JEP, the idiom to identify
> isUnnamed will likely change.)
As mentioned in https://bugs.openjdk.org/browse/JDK-8308916 the expression
should be `PreviewFeatures.isEnabled() && isSynthetic() && isTopLevelClass()`
as `PreviewFeatures.isEnabled()` is a private static final test that will
effectively make the full expression constant `false` when not in preview mode.
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/14165#discussion_r1214670484
