code: private static List<ObjectContent> retrievePropertiesAllObjects(ConnectionResources connectionResources,
                                                                     List<PropertyFilterSpec> propertyFilterSpecList)
              throws RuntimeFaultFaultMsg, InvalidPropertyFaultMsg {
  
          VimPortType vimPort = connectionResources.getVimPortType();
          ManagedObjectReference serviceInstance = connectionResources.getServiceInstance();
          ServiceContent serviceContent = vimPort.retrieveServiceContent(serviceInstance);
          ManagedObjectReference propertyCollectorReference = serviceContent.getPropertyCollector();
          RetrieveOptions propertyObjectRetrieveOptions = new RetrieveOptions();
          List<ObjectContent> objectContentList = new ArrayList<>();
  
          RetrieveResult results = vimPort.retrievePropertiesEx(propertyCollectorReference,
                  propertyFilterSpecList,
                  propertyObjectRetrieveOptions);
  
          if (results != null && results.getObjects() != null && !results.getObjects().isEmpty()) {
              objectContentList.addAll(results.getObjects());
          }
  
          String token = null;
          if (results != null && results.getToken() != null) {
              token = results.getToken();
          }
  
          while (token != null && !token.isEmpty()) {
              results = vimPort.continueRetrievePropertiesEx(propertyCollectorReference, token);
              token = null;
              if (results != null) {
                  token = results.getToken();
                  if (results.getObjects() != null && !results.getObjects().isEmpty()) {
                      objectContentList.addAll(results.getObjects());
                  }
              }
          }
  
          return objectContentList;
      }
docs: Uses the new RetrievePropertiesEx method to emulate the now deprecated
  RetrieveProperties method
  
  @param propertyFilterSpecList
  @return list of object content
  @throws Exception