code: protected void executePostMethod(
              HttpInvokerClientConfiguration config, HttpClient httpClient, PostMethod postMethod)
              throws IOException {
  
          httpClient.executeMethod(postMethod);
      }
docs: Execute the given PostMethod instance.
  @param config the HTTP invoker configuration that specifies the target service
  @param httpClient the HttpClient to execute on
  @param postMethod the PostMethod to execute
  @throws IOException if thrown by I/O methods
  @see org.apache.commons.httpclient.HttpClient#executeMethod(org.apache.commons.httpclient.HttpMethod)