try creating a new keytab file. use this command on your dc. This keytab file will not pass the init java test...so don't worry about trying, however try it in your resource folder anyway.
ktpass -princ xmpp/server.domain.local@DOMAIN.LOCAL -mapuser keytab@domain.local -pass * -crypto DES-CBC-MD5 -pType KRB5_NT_PRINCIPAL +DesOnly -out xmpp.keytab