[jdk11u] RFR: 8309476: [11u] tools/jmod/hashes/HashesOrderTest.java fails intermittently

[Christoph Langer]

The test 'tools/jmod/hashes/HashesOrderTest.java', introduced by [JDK-8240903](https://bugs.openjdk.org/browse/JDK-8240903), was backported to 11.0.17 via [JDK-8287791](https://bugs.openjdk.org/browse/JDK-8287791). However, JDK11 doesn't support specifying "--date". This appears to be needed in order to make the test reliable. The hashes of two jmod files may differ if the timestamp differs.

The "--date" option was implemented with [JDK-8276766](https://bugs.openjdk.org/browse/JDK-8276766) for JDK 19 and has only been backported to JDK 17. It is a feature that comes with a CSR and might not be worthwile doing for the JDK11 updates release. For now, the test should be marked as @intermittent until [JDK-8276766](https://bugs.openjdk.org/browse/JDK-8276766) is brought to JDK11 updates.

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Commit messages:
 - JDK-8309476

Changes: https://git.openjdk.org/jdk11u/pull/72/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u&pr=72&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309476
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u/pull/72.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u.git pull/72/head:pull/72

PR: https://git.openjdk.org/jdk11u/pull/72