On Thu, 15 Jan 2026 17:20:09 GMT, Liam Miller-Cushon <[email protected]> wrote:
>> 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 92540259.1... > > Liam Miller-Cushon has updated the pull request incrementally with one > additional commit since the last revision: > > Deduplicate with computeSizeUTF8_UTF16 src/java.base/share/classes/java/lang/String.java line 1498: > 1496: if (length > (long)Integer.MAX_VALUE) { > 1497: throw new IllegalStateException("Required length > exceeds implementation limit"); > 1498: } This is more like a should never reach here; the OOME thrown by encodedLengthUTF8_UTF16 should ocur. IllegalStateException usually refers to a programming error. The other occurrence like this throws OOME. src/java.base/share/classes/java/lang/String.java line 2112: > 2110: * > 2111: * @param cs The {@link Charset} used to the compute the length > 2112: * @throws NullPointerException If {@code cs} is {@code null} @throws clauses for NPE are usually omitted, the class javadoc specifies the behavior for the whole class. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/28454#discussion_r2695311406 PR Review Comment: https://git.openjdk.org/jdk/pull/28454#discussion_r2695316740
