[RFR 11u] 8233944: Make KerberosPrincipal.KRB_NT_ENTERPRISE field package private

[Martin Balao]

Hi Christoph,

I'd like to request a review and 11u-fix-approval for 8233944 [1].

Webrev.00:

 * http://cr.openjdk.java.net/~mbalao/webrevs/8233944/8233944.11u.webrev.00/

Thanks,
Martin.-

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[1] - https://bugs.openjdk.java.net/browse/JDK-8233944