On Tue, 30 Apr 2024 12:13:59 GMT, Adam Sotona <asot...@openjdk.org> wrote:
>> src/java.base/share/classes/jdk/internal/classfile/impl/BoundAttribute.java
>> line 996:
>>
>>> 994: public static AttributeMapper<?> standardAttribute(Utf8Entry name)
>>> {
>>> 995: // critical bootstrap path, so no lambdas nor method handles
>>> here
>>> 996: return switch (name.hashCode()) {
>>
>> I think we can safely switch over strings, as they are compiled to hashCode
>> switch like what you explicitly have right now. Isn't that the case?
>
> Freshly parsed Utf8Entries conversion to String is expensive and unnecessary.
> We should be very careful when to ask for the conversion as it significantly
> affects some benchmarks.
You are right, I forgot these are Utf8Entry instead of Strings.
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PR Review Comment: https://git.openjdk.org/jdk/pull/19006#discussion_r1584719802
