presto-iceberg/src/main/java/io/prestosql/plugin/iceberg/HdfsFileIo.java/HdfsFileIo/HdfsFileIo
class HdfsFileIo:    public HdfsFileIo(HdfsEnvironment environment, HdfsContext context)
    {
        this.environment = requireNonNull(environment, "environment is null");
        this.context = requireNonNull(context, "context is null");
    }