Trivial fix in Kerberos debug path that checks for null before dereferencing.
--------- - [X] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - 8384311: sun/security/krb5/KrbKdcRep.java throws NPE Changes: https://git.openjdk.org/jdk/pull/33109/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33109&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8384311 Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/33109.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33109/head:pull/33109 PR: https://git.openjdk.org/jdk/pull/33109
