[8u] RFR 8215032: Support Kerberos cross-realm referrals (RFC 6806)

[Martin Balao]

Hi,

I'd like to request a review for the 8u backport of 8215032 [1].

CSR for 8u requested here [2].

Webrev.00:

 *
http://cr.openjdk.java.net/~mbalao/webrevs/8215032/8215032.jdk8u.jdk.webrev.00/

Changes from 11u patch [3]:

 * File paths

 * java.security changes need to be populated through the different
java.security-<OS> files

 * Copyright dates
  * KerberosPrincipal.java
  * Checksum.java
  * Config.java
  * KrbAsRep.java
  * KrbTgsRep.java
  * PAData.java
  * KrbTgsReq.java

 * Failing hooks because of the context (no actual code changes)
  * KrbAsReq.java
   * Manually added "import java.util.Arrays;"
  * EncKDCRepPart.java
   * 8u has "<xmp>" tags because 8132130 was not backported to 8u
   * Manually replaced the structure adding "encrypted-pa-data [12]
SEQUENCE OF PA-DATA OPTIONAL"
  * KDC.java
   * Indentation issues

 * KrbTgsReq.java
  * "Arrays" already imported (introduced in 6355584 and not removed
since then)

 * ReferralsTest.java
  * @library jtreg header removed

Testing:

 * No regressions found in sun/security/krb5

Thanks,
Martin.-

--
[1] - https://bugs.openjdk.java.net/browse/JDK-8215032
[2] - https://bugs.openjdk.java.net/browse/JDK-8233512
[3] - http://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/f2b580a5721c