[jdk21u-dev] RFR: 8309667: TLS handshake fails because of ConcurrentModificationException in PKCS12KeyStore.engineGetEntry

[Goetz Lindenmaier]

I would like to fix this issue in 21, the latest LTS:

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Commit messages:
 - Backport d2e2c4cef1f15a3fc7f1f619470d23ae6bb37725

Changes: https://git.openjdk.org/jdk21u-dev/pull/1674/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1674&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309667
  Stats: 259 lines in 3 files changed: 250 ins; 2 del; 7 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1674.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1674/head:pull/1674

PR: https://git.openjdk.org/jdk21u-dev/pull/1674