[jdk17u-dev] RFR: 8294906: Memory leak in PKCS11 NSS TLS server

[Goetz Lindenmaier]

I backport this for parity with 17.0.8-oracle.

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Commit messages:
 - Backport 94caecbe574227b232e22d9f56361f8ecd507be6

Changes: https://git.openjdk.org/jdk17u-dev/pull/1246/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1246&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294906
  Stats: 119 lines in 5 files changed: 108 ins; 3 del; 8 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1246.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1246/head:pull/1246

PR: https://git.openjdk.org/jdk17u-dev/pull/1246