Send data_source parameters Web Services (runReport)

public MainTest {

 

public static JasperPrint runReport(String reportUri, Map parameters) throws Exception {

JServer jServer = new JServer()

       jServer.setName(NAME_SERVER)

       jServer.setUsername(username)

       jServer.setPassword(password)

       jServer.setUrl(http://localhost:8080/jasperserver/services/repository)

       ResourceDescriptor rd = new ResourceDescriptor()

       rd.setWsType(ResourceDescriptor.TYPE_JRXML)

       rd.setUriString(reportUri)

 

       return getServer(URL_REPOSITORY_SERVICE).getWSClient().runReport(rd, parameters)

}

 

 

public static void main() {

      String xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?><inforeports><report><webcastId>92354</webcastId></report><report><webcastId>92355</webcastId></report></inforeports>"

 

       Map<String, Object> params = new HashMap<String, Object>();

       Document document = JRXmlUtils.parse(new ByteArrayInputStream(xml.getBytes("UTF-8")))

       params.put(JRXPathQueryExecuterFactory.PARAMETER_XML_DATA_DOCUMENT, document)

 

       runReport("/test/example_report_xml", params)

}}

 

How set parameter XML_DATA_SOURCE?  Because I have exception: