RFR: 8148937: (str) Adapt StringJoiner for Compact Strings [v2]

[Сергей Цыпанов]

On Mon, 15 Mar 2021 20:54:54 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> 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 three additional commits since the last revision:
>> 
>>  - 8148937: (str) Use StringBuilder as cl4es suggests
>>  - 8148937: (str) Check also delimiter, prefix and suffix
>>  - 8148937: (str) Adapt StringJoiner for Compact Strings
>
> The copyright year and description of the microbenchmark needs to be updated (my copy-paste error). I'd also consider narrowing down the parameter combinations and iteration times so that default execution times is more reasonable (currently ~45 minutes even though these micros stabilize in seconds)

Done. I've removed mixed mode from benchmark, anyway it falls back to non-latin1 case

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PR: https://git.openjdk.java.net/jdk/pull/2627