> This implements an API to return the byte length of a String encoded in a 
> given charset. See [JDK-8372353](https://bugs.openjdk.org/browse/JDK-8372353) 
> for background.
> 
> ---
> 
> 
> Benchmark                              (encoding)  (stringLength)   Mode  Cnt 
>          Score          Error  Units
> StringLoopJmhBenchmark.getBytes             ASCII              10  thrpt    5 
>  406782650.595 ± 16960032.852  ops/s
> StringLoopJmhBenchmark.getBytes             ASCII             100  thrpt    5 
>  172936926.189 ±  4532029.201  ops/s
> StringLoopJmhBenchmark.getBytes             ASCII            1000  thrpt    5 
>   38830681.232 ±  2413274.766  ops/s
> StringLoopJmhBenchmark.getBytes             ASCII          100000  thrpt    5 
>     458881.155 ±    12818.317  ops/s
> StringLoopJmhBenchmark.getBytes            LATIN1              10  thrpt    5 
>   37193762.990 ±  3962947.391  ops/s
> StringLoopJmhBenchmark.getBytes            LATIN1             100  thrpt    5 
>   55400876.236 ±  1267331.434  ops/s
> StringLoopJmhBenchmark.getBytes            LATIN1            1000  thrpt    5 
>   11104514.001 ±    41718.545  ops/s
> StringLoopJmhBenchmark.getBytes            LATIN1          100000  thrpt    5 
>     182535.414 ±    10296.120  ops/s
> StringLoopJmhBenchmark.getBytes             UTF16              10  thrpt    5 
>  113474681.457 ±  8326589.199  ops/s
> StringLoopJmhBenchmark.getBytes             UTF16             100  thrpt    5 
>   37854103.127 ±  4808526.773  ops/s
> StringLoopJmhBenchmark.getBytes             UTF16            1000  thrpt    5 
>    4139833.009 ±    70636.784  ops/s
> StringLoopJmhBenchmark.getBytes             UTF16          100000  thrpt    5 
>      57644.637 ±     1887.112  ops/s
> StringLoopJmhBenchmark.getBytesLength       ASCII              10  thrpt    5 
>  946701647.247 ± 76938927.141  ops/s
> StringLoopJmhBenchmark.getBytesLength       ASCII             100  thrpt    5 
>  396615374.479 ± 15167234.884  ops/s
> StringLoopJmhBenchmark.getBytesLength       ASCII            1000  thrpt    5 
>  100464784.979 ±   794027.897  ops/s
> StringLoopJmhBenchmark.getBytesLength       ASCII          100000  thrpt    5 
>    1215487.689 ±     1916.468  ops/s
> StringLoopJmhBenchmark.getBytesLength      LATIN1              10  thrpt    5 
>  221265102.323 ± 17013983.056  ops/s
> StringLoopJmhBenchmark.getBytesLength      LATIN1             100  thrpt    5 
>  137617873.887 ±  5842185.781  ops/s
> StringLoopJmhBenchmark.getBytesLength      LATIN1            1000  thrpt    5 
>   92540259.130 ±  3839233.582  ops/s
> StringLoopJmhBenchmark.ge...

Liam Miller-Cushon has updated the pull request incrementally with one 
additional commit since the last revision:

  implNote

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28454/files
  - new: https://git.openjdk.org/jdk/pull/28454/files/81d132f8..a6b37002

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28454&range=09
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28454&range=08-09

  Stats: 4 lines in 1 file changed: 1 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/28454.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28454/head:pull/28454

PR: https://git.openjdk.org/jdk/pull/28454

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