code: public ServiceFuture<ProtectionPolicyResourceInner> createOrUpdateAsync(String vaultName, String resourceGroupName, String policyName, ProtectionPolicyResourceInner resourceProtectionPolicy, final ServiceCallback<ProtectionPolicyResourceInner> serviceCallback) {
          return ServiceFuture.fromResponse(createOrUpdateWithServiceResponseAsync(vaultName, resourceGroupName, policyName, resourceProtectionPolicy), serviceCallback);
      }
docs: Creates or modifies a backup policy. This is an asynchronous operation. Use the GetPolicyOperationResult API to Get the operation status.
  
  @param vaultName The name of the Recovery Services vault.
  @param resourceGroupName The name of the resource group associated with the Recovery Services vault.
  @param policyName The backup policy to be created.
  @param resourceProtectionPolicy The resource backup policy.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object