RFR: 8267844: Replace Integer/Long.valueOf() with Integer/Long.parse*() where applicable [v2]

[Claes Redestad]

On Tue, 10 Aug 2021 21:06:00 GMT, Сергей Цыпанов <github.com+10835776+stsypanov at openjdk.org> wrote:

>> The code in `Integer.decode()` and `Long.decode()` might allocate two instances of Integer/Long for the negative values less than -127:
>> 
>> Integer result;
>> 
>> result = Integer.valueOf(nm.substring(index), radix);
>> result = negative ? Integer.valueOf(-result.intValue()) : result;
>> 
>> To avoid this we can declare 'result' as `int` and use `Integer.parseInt()` method. Same applicable for `Long` and some other classes.
>
> Сергей Цыпанов has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
> 
>  - 8267844: Add benchmarks for Integer/Long.decode()
>  - 8267844: Rid useless substring when calling Integer/Long.parse*()
>  - Merge branch 'master' into 8267844
>  - Merge branch 'master' into 8267844
>  - 8267844: Replace Integer/Long.valueOf() with Integer/Long.parse*() where applicable

Nice!

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Marked as reviewed by redestad (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5068