[lworld] RFR: 8376430: [lworld] Remove Modifier.IDENTITY [v3]

[Chen Liang]

On Tue, 27 Jan 2026 22:47:22 GMT, Chen Liang <liach at openjdk.org> wrote:

>> `java.lang.reflect.Modifier` represents Java language modifiers. Since a previous iteration of JEP 401, the "identity" source modifier is removed, and only "value" source modifier exists. As a result, "identity" is no longer qualified to be present in `Modifier`. We should migrate all its uses to `ClassFile.ACC_IDENTITY` or `AccessFlag.IDENTITY` (which already correctly identifies itself not as a source modifier).
>> 
>> This also avoids the headache of `Modifier.toString` clashing over `SYNCHRONIZED` versus `IDENTITY`.
>
> Chen Liang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix identity modifier reference in getModifiers and accessFlags

Thanks for the reviews! Tier 1-2 passed.

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PR Comment: https://git.openjdk.org/valhalla/pull/1980#issuecomment-3808444370