Help launching subreports from servlet

[hsnakew]

When launching the report from the servlet, and this report contains subreports, simply does not run and throws me no error in the application server console.
The reports that not include subreports, running smoothly.

Any suggestions on how to resolve the incident?

Code:

protected void processRequest(HttpServletRequest request, HttpServletResponse response)    throws ServletException, IOException {        ServletOutputStream out=response.getOutputStream();        response.setContentType("application/pdf");        String idreporte = request.getParameter("idreporte");        String valor1 = request.getParameter("parametro1");        response.setHeader("Content-Disposition","inline; filename=Diario_de_Ventas.pdf");        new jasper().reporte("diario_de_ventas2.jasper","fecha",valor1,"","",response.getOutputStream());....public void reporte(String archivo, String identificador1, String parametro1,String identificador2, String parametro2, OutputStream out){     JasperReport reporte;     JasperPrint reporte_view;     try{          Map parameters = new HashMap();         parameters.put (identificador1,parametro1);            parameters.put (identificador2,parametro2);          URL  in = this.getClass().getResource(archivo);          reporte = (JasperReport) JRLoader.loadObject( in );          reporte_view= JasperFillManager.fillReport( reporte, parameters, con.getConnection() );           JasperExportManager.exportReportToPdfStream(reporte_view,out);          con.desconectar();   }catch (JRException E){     E.printStackTrace();          }    }

[Raphaël Peguet]

Hi,

You may get more information on what's going on opening the page http://localhost:8080/jasperserver-pro/log_settings.html and changing the log settings to debug

NB you may need to change server name and port in the url above.

Raphael

[hsnakew]

Thank you for your contribution.
However, do not use the JasperReport server to launch it;
I use a tomcat server with a servlet handmade.