code: public ServiceFuture<ExpressRouteCrossConnectionInner> beginCreateOrUpdateAsync(String resourceGroupName, String crossConnectionName, ExpressRouteCrossConnectionInner parameters, final ServiceCallback<ExpressRouteCrossConnectionInner> serviceCallback) {
          return ServiceFuture.fromResponse(beginCreateOrUpdateWithServiceResponseAsync(resourceGroupName, crossConnectionName, parameters), serviceCallback);
      }
docs: Update the specified ExpressRouteCrossConnection.
  
  @param resourceGroupName The name of the resource group.
  @param crossConnectionName The name of the ExpressRouteCrossConnection.
  @param parameters Parameters supplied to the update express route crossConnection operation.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object