presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/SemiTransactionalHiveMetastore.java/DirectoryDeletionTask/toString
class DirectoryDeletionTask:        @Override
        public String toString()
        {
            return toStringHelper(this)
                    .add("context", context)
                    .add("path", path)
                    .toString();
        }