presto-accumulo/src/main/java/io/prestosql/plugin/accumulo/AccumuloMetadata.java/AccumuloMetadata/rollback
class AccumuloMetadata:    public void rollback()
    {
        Runnable rollbackAction = this.rollbackAction.getAndSet(null);
        if (rollbackAction != null) {
            rollbackAction.run();
        }
    }