Jasper report works fine in HTML report but opens a blank PDF page in PDF report

[mahudees waran]

Hai All,
I am creating a jasper report and I need to be displayed in browser in pdf format.It works fine with HTML format but when I export it to PDF it opens a blank PDF page no records are found.

  
List<UserReportView> userReports = new ArrayList<UserReportView>();
Map<String, Object> parametersmap = new HashMap<String, Object>();
JRBeanCollectionDataSource bean = new JRBeanCollectionDataSource(userReports); 


try {
    JasperReport jasperReport = JasperCompileManager.compileReport(request.getRealPath("UserSummary.jrxml"));
    
    JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parametersmap,bean);
    
    String type = request.getParameter("type");
   
    
    if("pdf".equalsIgnoreCase(type)){
response.setContentType("application/pdf");
OutputStream outputStream = response.getOutputStream();
JasperPrint jasperPrintpdf = JasperFillManager.fillReport(jasperReport, parametersmap, bean);

Map fontMap = new HashMap();
fontMap.put(new FontKey("Arial", true, false), new PdfFont("Helvetica-Bold", "Cp1252", false));
fontMap.put(new FontKey("Arial", false, true), new PdfFont("Helvetica-Oblique", "Cp1252", false));
fontMap.put(new FontKey("Arial", true, true), new PdfFont("Helvetica-BoldOblique", "Cp1252", false));
fontMap.put(new FontKey("Comic Sans MS", false, false), new PdfFont("COMICBD.TTF", "Cp1252", true));

JRPdfExporter pdfExporter = new JRPdfExporter();
pdfExporter.setParameter(JRExporterParameter.OUTPUT_STREAM, outputStream);
pdfExporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
pdfExporter.setParameter(JRExporterParameter.FONT_MAP, fontMap);
pdfExporter.exportReport();
       
    }
 
  

I get the following exception

  
java.lang.NullPointerException
at com.lowagie.text.pdf.ColumnText.findLimitsPoint(Unknown Source)
at com.lowagie.text.pdf.ColumnText.findLimitsOneLine(Unknown Source)
at com.lowagie.text.pdf.ColumnText.findLimitsTwoLines(Unknown Source)
at com.lowagie.text.pdf.ColumnText.go(Unknown Source)
at com.lowagie.text.pdf.ColumnText.go(Unknown Source)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportText(JRPdfExporter.java:1932)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportElements(JRPdfExporter.java:679)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportPage(JRPdfExporter.java:641)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:536)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:323)
at com.riverstone.service.report.UserReport.getUserSummaryDetails(UserReport.java:135)
at com.riverstone.controller.admin.AdminReportController.viewUserSummaryReport(AdminReportController.java:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:393)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:331)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:723)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:663)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:394)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:348)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at com.riverstone.common.SecurityFilter.doFilter(SecurityFilter.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:142)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:58)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:264)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.securechannel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:138)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at com.riverstone.common.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:99)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.ui.logout.LogoutFilter.doFilter(LogoutFilter.java:108)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:195)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148)
at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:90)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:595)
  

Can any of you help me please what is going wrong in this?

[mahudees waran]

Consider the list userReports contains values added to it.