presto-hive/src/main/java/io/prestosql/plugin/hive/authentication/KerberosHadoopAuthentication.java/KerberosHadoopAuthentication/KerberosHadoopAuthentication
class KerberosHadoopAuthentication:    private KerberosHadoopAuthentication(KerberosAuthentication kerberosAuthentication)
    {
        this.kerberosAuthentication = requireNonNull(kerberosAuthentication, "kerberosAuthentication is null");
    }