[jdk25u] RFR: 8357739: [jittester] disable the hashCode method

[Shyam Kishor]

8357739: [jittester] disable the hashCode method

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Commit messages:
 - 8357739: [jittester] disable the hashCode method

Changes: https://git.openjdk.org/jdk25u/pull/154/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=154&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357739
  Stats: 556 lines in 4 files changed: 402 ins; 121 del; 33 mod
  Patch: https://git.openjdk.org/jdk25u/pull/154.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/154/head:pull/154

PR: https://git.openjdk.org/jdk25u/pull/154