RFR: 8340887: Add micro benchmark comparing input stream performance of ZipFile vs ZipInputStream

[Eirik Bjørsnøs]

Please review this test-only PR which adds a micro benchmark exploring performance differences between reading entry data sequentially from a `ZipFile` and reading the same entries using `ZipInputStream` wrapping a `BufferedInputStream`.

Spoiler alert: `ZipFile` streams are ~1.8 X slower on my machine compared to `ZipInputStream`:


Benchmark                               (buffered)  (method)  (size)  Mode  Cnt     Score     Error  Units
ReadZipStreams.zipFile                        true  DEFLATED    1024  avgt   15  7871.679 ? 278.719  us/op
ReadZipStreams.zipFile                        true    STORED    1024  avgt   15  4976.571 ?  87.311  us/op
ReadZipStreams.zipInputStream                 true  DEFLATED    1024  avgt   15  4345.494 ?  40.628  us/op
ReadZipStreams.zipInputStream                 true    STORED    1024  avgt   15  2652.063 ?  13.617  us/op


 When not using `BufferedInputStream`, most of the difference disappears, so this is probably related to `ZipFileInputStream`'s lack of buffering:


ReadZipStreams.zipFile                       false  DEFLATED    1024  avgt   15  7980.705 ? 490.846  us/op
ReadZipStreams.zipFile                       false    STORED    1024  avgt   15  4994.301 ?  52.762  us/op
ReadZipStreams.zipInputStream                false  DEFLATED    1024  avgt   15  8367.171 ?  81.631  us/op
ReadZipStreams.zipInputStream                false    STORED    1024  avgt   15  4811.824 ?  47.859  us/op

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Commit messages:
 - Add micro benchmark comparing input stream performance of ZipFile vs ZipInputStream

Changes: https://git.openjdk.org/jdk/pull/21178/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21178&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340887
  Stats: 118 lines in 1 file changed: 118 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21178.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21178/head:pull/21178

PR: https://git.openjdk.org/jdk/pull/21178