RFR: 8357289: Break down the String constructor into smaller methods [v3]

[Shaojin Wen]

On Sun, 25 May 2025 04:40:44 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   create method share variant val & coder
>
> src/java.base/share/classes/java/lang/String.java line 569:
> 
>> 567:         }
>> 568:         this.value = str.value;
>> 569:         this.coder = str.coder;
> 
> Suggestion:
> 
>         this(str);
> 
> We have integrated flexible constructor bodies.

public String(String original) {
        this.value = original.value;
        this.coder = original.coder;
        this.hash = original.hash;
        this.hashIsZero = original.hashIsZero;
    }

this(str) It will lead to more operations, which are not necessary here.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25290#discussion_r2106083905