Hi, i was developing a report with jasperReports and and I always had this error, when i tried to display it from a servlet: the code: protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("application/pdf"); ServletOutputStream servletOutputStream = response.getOutputStream(); InputStream reportStream = getServletConfig().getServletContext() .getResourceAsStream("/reports/reportTest.jasper"); try { JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, new HashMap(),conexion.getCon() ); servletOutputStream.flush(); servletOutputStream.close(); } catch (JRException ex) { StringWriter stringWriter = new StringWriter(); PrintWriter printWriter = new PrintWriter(stringWriter); ex.printStackTrace(printWriter); response.setContentType("text/plain"); response.getOutputStream().print(stringWriter.toString()); } } the error: java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:528) net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:362) net.sf.jasperreports.engine.JasperExportManager.exportReportToPdf(JasperExportManager.java:184) net.sf.jasperreports.engine.JasperRunManager.runReportToPdf(JasperRunManager.java:244) servlets.Bodega.reportar.processRequest(reportar.java:43) servlets.Bodega.reportar.doGet(reportar.java:71) I searched in many places and thought that were the libraries, also changed many things and finally I realized that I always used Apache Tomcat, so I change it to GlassFish 3 and voila, the error now is gone!. PD: my english lvl is kinda low, but this fix speaks for itself :). Post Edited by mikewolf at 09/21/2011 04:18
