On Tue, 29 Apr 2025 19:17:02 GMT, Chen Liang <li...@openjdk.org> wrote:

>> Some AccessFlag parsing methods throw IAE because a flag mask is not valid 
>> in a location. However, there is no easy way to check what flag mask bits or 
>> what flags are valid for a location. We need such APIs to check, specific to 
>> each class file format version.
>> 
>> Also in the investigation, it's noted that `ACC_SYNTHETIC` is incorrectly 
>> represented - it is available since release 5.0 instead of release 7. This 
>> bug is fixed together for implementation simplicity.
>> 
>> The new methods are all in `AccessFlag.Location`:
>> - `Set<AccessFlag> flags()`
>> - `int flagsMask()`
>> - `Set<AccessFlag> flags(ClassFileFormatVersion)`
>> - `int flagsMask(ClassFileFormatVersion)`
>> 
>> Also there is some simplification to `AccessFlag` itself to remove the 
>> anonymous classes, which should be more startup-friendly.
>> 
>> Testing: Tier 1-3
>
> Chen Liang has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Explicit imports

Thanks for the reviews! I think we will reconsider the spliterator flags with 
all other immutable collections later.

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PR Comment: https://git.openjdk.org/jdk/pull/23095#issuecomment-2840535419

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