Looking to backport the following two bug fixes to jdk8u-dev :
JDK-8147772 Update KerberosTicket to describe behavior if it has been destroyed and fix NullPointerExceptions
JDK-8163104 Unexpected NPE still possible on some Kerberos ticket callsThe changes are similar to JDK 9 expect that the @implNote and javadoc edits have been omitted from jdk8u for the 8147772 port.
webrev : http://cr.openjdk.java.net/~coffeys/webrev.8147772.8163104.jdk8u/webrev/
-- Regards, Sean.
