giliardi

Hello all, I was using the IReport and JasperReports libs 3.0.0. I created a simple report (page header, detail, page footer and summary bands) and I export to various formats with IReport tool sucessfully. I put the .jasper file on my webapp (JasperReports libs 3.0.0, POI 3.0.1) and I export to PDF, RTF and CSV, but I can't export to XLS (that`s the most important format to my app). Doing a debug on application servlet that generate this report I verify that error occours at last command on the code: The execution breaks when debug pass on exportReport(); command. With another formats this command is executed successfully, except with XLS format. The breaks don't throw exceptions :( Anyone can help me? Code: JasperPrint print = JasperFillManager.fillReport(fis, parameters, ds); ByteArrayOutputStream out = new ByteArrayOutputStream(); JRExporter exporter = null; if (ftype == null || ftype.equals("pdf")) { exporter = new JRPdfExporter(); exporter.setParameter(JRExporterParameter.JASPER_PRINT, print); exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out); response.setHeader("Content-Disposition", "attachment; filename=""+reportName+".pdf""); response.setContentType("application/pdf"); } else if (ftype != null && ftype.equals("xls")) { exporter = new JRXlsExporter(); exporter.setParameter(JRExporterParameter.JASPER_PRINT, print); exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out); exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE); exporter.setParameter(JRXlsExporterParameter.IS_AUTO_DETECT_CELL_TYPE, Boolean.TRUE); exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.TRUE); exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.FALSE); response.setHeader("Content-Disposition", "attachment; filename=""+reportName+".xls""); response.setContentType("application/ms-excel"); }..... exporter.exportReport(); <<<<<<================ ...