[jdk17u-dev] RFR: 8277422: tools/jar/JarEntryTime.java fails with modified time mismatch

[Goetz Lindenmaier]

I backport this for parity with 17.0.4-oracle.

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

Commit messages:
 - Backport ad1ff27b730773a141d73744e5f5a899bdfbea78

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/251/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=251&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8277422
  Stats: 11 lines in 1 file changed: 9 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/251.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/251/head:pull/251

PR: https://git.openjdk.java.net/jdk17u-dev/pull/251