presto-hive/src/main/java/io/prestosql/plugin/hive/authentication/HdfsKerberosConfig.java/HdfsKerberosConfig/getHdfsPrestoPrincipal
class HdfsKerberosConfig:    @NotNull
    public String getHdfsPrestoPrincipal()
    {
        return hdfsPrestoPrincipal;
    }