RFR: 8360979: Remove use of Thread.stop in krb5/auto/KDC.java

[Mikhail Yankelevich]

Replaced Thread::stop to Thread::interrupt

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Commit messages:
 - JDK-8360979: Remove use of Thread.stop in krb5/auto/KDC.java

Changes: https://git.openjdk.org/jdk/pull/26247/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26247&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8360979
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/26247.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26247/head:pull/26247

PR: https://git.openjdk.org/jdk/pull/26247