[jdk17u-dev] RFR: 8342270: Test sun/security/pkcs11/Provider/RequiredMechCheck.java needs write access to src tree

[Goetz Lindenmaier]

I backport this for parity with 17.0.15-oracle

Resolved imports in PKCS11Test, probably clean.

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Commit messages:
 - Backport 342fe42555a0e892d21d187287ab996be199abb1

Changes: https://git.openjdk.org/jdk17u-dev/pull/3143/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3143&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342270
  Stats: 33 lines in 2 files changed: 28 ins; 1 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3143.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3143/head:pull/3143

PR: https://git.openjdk.org/jdk17u-dev/pull/3143