Cannot see images in html report

[frjasper]

I'm using Netbeans 6.9, JSF 2.0 and Glassfish server 3.

I have a jsf page with two links, one that shows a report in pdf mode an another that shows it in html mode. My report in pdf shows all the contents ok, but my html report includes null images between texts. I configured the ImageServlet in my web.xml file, indicating "net.sr.jasperreports.j2ee.servlets.ImageServlet" as servlet class and /image as URL pattern.

My bean called from my jsf page do the export with the code:

exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, response.getWriter());
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, request.getContextPath() + "/image?image=");
exporter.exportReport();

The problem is that Glassfish shows an error when execute the exportRetport() instruction in html mode. The error is:

Warning StandardWrapperValve[imageServlet]: PWC1382: Allocate exception for servlet ImageServlet
java.lang.ClassCastException: net.sf.jasperreports.j2ee.servlets.ImageServlet cannot be cast to javax.servlet.Servlet

 

Any suggestions?

 

Thanks in advance.