[jdk15u-dev] RFR: 8287162: (zipfs) Performance regression related to support for POSIX file permissions

[Yuri Nesterenko]

This fix should be ported here, too, to be on par with later releases.
All test/jdk/java/util/zip test/jdk/jdk/nio/zipfs tests pass but one: jdk/java/util/zip/ZipFile/TestZipFile.java should be updated with 8207936 (there's no getMetaInfEntryNames() in ZipFile.java in 15u)

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

Commit messages:
 - Backport a10c5597d93c4402bafdbb570437aac052b10027

Changes: https://git.openjdk.org/jdk15u-dev/pull/265/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk15u-dev&pr=265&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287162
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk15u-dev/pull/265.diff
  Fetch: git fetch https://git.openjdk.org/jdk15u-dev pull/265/head:pull/265

PR: https://git.openjdk.org/jdk15u-dev/pull/265