public Void call(RevisionManagerEndpointService service)
throws IOException {
ServerRpcController controller = new ServerRpcController();
BlockingRpcCallback<DropTableResponse> done =
new BlockingRpcCallback<DropTableResponse>();
DropTableRequest request = DropTableRequest.newBuilder()
.setTableName(table).build();
service.dropTable(null, request, done);
blockOnResponse(done, controller);
return null;
}