On Wed, 10 Jul 2024 22:02:12 GMT, Shaojin Wen <d...@openjdk.org> wrote:

>> The current HexFormat defines an Enum to represent LowerCase and UpperCase
>> 
>> 
>> class HexFormat {
>>     private enum Case {
>>         LOWERCASE,
>>         UPPERCASE
>>     }
>> }
>> 
>> 
>> This will cause the JVM to load one more class when it starts, which can be 
>> seen as follows
>> 
>> 
>> public class Startup {
>>     public static void main(String[] args) {}
>> }
>> 
>> 
>> 
>> java -verbose:class Startup
>> 
>> 
>> 
>> [0.094s][info][class,load] java.util.HexFormat$Case source: 
>> /Users/.../jdk/modules/java.base
>> 
>> 
>> There are only two cases here, which can be represented by boolean, which is 
>> clearer and can improve the startup speed a little bit.
>
> Shaojin Wen has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   copyright

Thanks for the detailed rationale and explanations! Runs fine on CI.

-------------

Marked as reviewed by liach (Committer).

PR Review: https://git.openjdk.org/jdk/pull/20060#pullrequestreview-2170564329

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