// TODO what about security????
private Future<InstanceCommandResult> pingInstance() {
try {
ActionReport aReport = report.addSubActionsReport();
InstanceCommandResult aResult = new InstanceCommandResult();
ParameterMap map = new ParameterMap();
map.set("type", "terse");
InstanceCommandExecutor ice =
new InstanceCommandExecutor(habitat, "__locations", FailurePolicy.Error, FailurePolicy.Error,
svr, host, port, logger, map, aReport, aResult);