How to check the status of a operation request on a resource group

Issue

• I am using the following code to invoke a stop operation on JBoss instances that belong in the resource group:

ResourceManagerRemote resourceManager = remoteClient.getResourceManager();
ResourceCriteria resourceCriteria = new ResourceCriteria();
resourceCriteria.addFilterExplicitGroupIds(resourceGroup.getId());

PageList resources = resourceManager.findResourcesByCriteria(subject, resourceCriteria);
System.out.println("No. of resources for ["+resourceGroupName+"] = ["+resources.getTotalSize()+"]");
if(resources.getTotalSize() == 1){
    ResourceOperationHistoryCriteria opcrit = new ResourceOperationHistoryCriteria();
    Resource resource = (Resource)resources.get(0);
    System.out.println("Resource name ["+resource.getName()+"] has an id ["+resource.getId()+"]");
    opcrit.addFilterResourceIds(resource.getId());

    List<ResourceOperationHistory> history = operationManager.findResourceOperationHistoriesByCriteria(subject, opcrit);
    System.out.println("Operational History results on resource group = " + history.size());

    ResourceOperationHistory resourceOperationHistory = history.get(history.size()-1);//Gets the first value
    System.out.println(resourceOperationHistory.getStatus());
}

This will return a list of operation requests. However, I need to know how to find out which one is the latest request in the returned history table? Is the returned history table given in date order?