8081347: Add @modules to jdk_core tests
Reviewed-by: alanb, joehw, lancea
Contributed-by: alexander.kulyakhtin@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com

8044500: Add kinit options and krb5.conf flags that allow users to obtain renewable tickets and specify ticket lifetimes
Reviewed-by: valeriep