Please see test: sun/security/krb5/runNameEquals.sh.
Following exception is thrown:
Exception in thread "main" GSSException: Invalid name provided (Mechanism level: Cannot locate default realm)
at sun.security.jgss.krb5.Krb5NameElement.getInstance(Krb5NameElement.java:127)
at sun.security.jgss.krb5.Krb5MechFactory.getNameElement(Krb5MechFactory.java:95)
at sun.security.jgss.GSSManagerImpl.getNameElement(GSSManagerImpl.java:202)
at sun.security.jgss.GSSNameImpl.getElement(GSSNameImpl.java:472)
at sun.security.jgss.GSSNameImpl.init(GSSNameImpl.java:201)
at sun.security.jgss.GSSNameImpl.<init>(GSSNameImpl.java:170)
at sun.security.jgss.GSSManagerImpl.createName(GSSManagerImpl.java:137)
at Krb5NameEquals.main(Krb5NameEquals.java:53)

JIRA Equivalent: http://java.net/jira/browse/MACOSX_PORT-146