Support for RC4-HMAC encryption type was recently added to Java GSS/Kerberos in Mustang.
Kerberos RC4-HMAC encryption type requires support for MD4. At that time MD4 was not available in the Sun provider. Hence used MD4 support from third party.
Andreas is adding support for MD4 in Sun provider. Hence we need to update
Java GSS/Kerberos to now use Sun MD4 implementation.
Updated JGSS/Kerberos to use Sun MD4 implementation.