[Fix] java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V

[mikewolf]

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

[mikewolf]

also, reinstall your ide might help too.