RFR: 8333772: Incorrect Kerberos behavior when udp_preference_limit = 0

[Sibabrata Sahoo]

On Mon, 10 Jun 2024 20:29:54 GMT, Weijun Wang <weijun at openjdk.org> wrote:

> Allow `udp_preference_limit = 0` to force TCP.
> 
> The reason for this bug is that it was read in a similar way as `kdc_timeout` and `max_retries`, both must be positive to have effect.

Marked as reviewed by ssahoo (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/19638#pullrequestreview-2109444065