RFR: 8339290: Optimize ClassFile Utf8EntryImpl#writeTo [v2]

[Shaojin Wen]

On Fri, 30 Aug 2024 04:41:15 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   add comments
>
> src/java.base/share/classes/jdk/internal/classfile/impl/AbstractPoolEntry.java line 441:
> 
>> 439:                 }
>> 440:                 else {
>> 441:                     int charLength = stringValue.length();
> 
> In the slow loop, you can remove everything before the `else` - we don't really need that optimistic writing any more

The code of the slow path is complex and difficult to understand. Can the simplified work be used as a follow-up action?

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PR Review Comment: https://git.openjdk.org/jdk/pull/20772#discussion_r1737952771