[crac] RFR: 8364078: [CRaC] CracTest mishandles NoSuchMethodException

[Timofei Pushkin]

Fixes the issue by reducing the scope of the `NoSuchMethodException`'s try-catch statement.

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Commit messages:
 - Reduce try-catch scope

Changes: https://git.openjdk.org/crac/pull/249/files
  Webrev: https://webrevs.openjdk.org/?repo=crac&pr=249&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8364078
  Stats: 62 lines in 1 file changed: 21 ins; 18 del; 23 mod
  Patch: https://git.openjdk.org/crac/pull/249.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/249/head:pull/249

PR: https://git.openjdk.org/crac/pull/249