RFR: 8356202: Cleanup Source code in String Implementation Classes

[Chen Liang]

On Thu, 2 Oct 2025 15:39:51 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> Code cleanup in java.lang.StringLatin1 and StringUTF16.
> Remove the `public` qualifier from methods where it is not needed.
> Remove an unused toBytes method.
> Remove unused codePointXXX methods.
> Remove unnecessary casts of primitive types.
> 
> Some of these are suggested by IntelliJ, if the advice should not be taken, I'll revert and update the IDE settings.

src/java.base/share/classes/java/lang/StringLatin1.java line 367:

> 365:     }
> 366: 
> 367:     // case in-sensitive

I think we use insensitive without a dash: https://www.dictionary.com/browse/insensitive

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PR Review Comment: https://git.openjdk.org/jdk/pull/27609#discussion_r2399313326