Exception was thrown after I added a Servlet...

[hantsy]

I tried to add a servlet to generate pdf in browser.

But I opened the home page in browser, I got the following exception.

javax.enterprise.event.ObserverException
     sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     java.lang.reflect.Constructor.newInstance(Constructor.java:513)
     java.lang.Class.newInstance0(Class.java:355)
     java.lang.Class.newInstance(Class.java:308)
     org.jboss.weld.util.reflection.SecureReflections$16.work(SecureReflections.java:395)
     org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
     org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInstantiation(SecureReflectionAccess.java:216)
     org.jboss.weld.util.reflection.SecureReflections.newInstance(SecureReflections.java:390)
     org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:40)
     org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:92)
     org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:214)
     org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:282)
     org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:265)
     org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:234)
     org.jboss.weld.manager.BeanManagerImpl.notifyObservers(BeanManagerImpl.java:635)
     org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:622)
     org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:616)
     org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:74)
     org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:72)

root cause

javax.servlet.ServletException: The class 'org.jboss.weld.proxies.Conversation$-1395802890$Proxy$_$$_WeldClientProxy' does not have the property 'end'.
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:325)
     com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:118)
     com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:110)
     org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:65)
     org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:72)

root cause

javax.el.PropertyNotFoundException: The class 'org.jboss.weld.proxies.Conversation$-1395802890$Proxy$_$$_WeldClientProxy' does not have the property 'end'.
     javax.el.BeanELResolver.getBeanProperty(BeanELResolver.java:661)
     javax.el.BeanELResolver.getValue(BeanELResolver.java:290)
     javax.el.CompositeELResolver.getValue(CompositeELResolver.java:175)
     com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
     org.apache.el.parser.AstValue.getValue(AstValue.java:134)
     org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:187)
     org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:55)
     com.sun.faces.facelets.el.ELText$ELTextVariable.toString(ELText.java:207)
     com.sun.faces.facelets.el.ELText$ELTextComposite.toString(ELText.java:148)
     com.sun.faces.facelets.compiler.CommentInstruction.write(CommentInstruction.java:70)
     com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:75)
     com.sun.faces.facelets.compiler.UILeaf.encodeAll(UILeaf.java:176)
     javax.faces.component.UIComponent.encodeAll(UIComponent.java:1655)
     com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:380)
     com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126)
     com.ocpsoft.pretty.faces.application.PrettyViewHandler.renderView(PrettyViewHandler.java:163)
     javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)
     javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)
     javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)
     com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127)
     com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
     com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)
     com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:118)
     com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:110)
     org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:65)
     org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:72)

[hantsy]

The servlet code.

@WebServlet("/forwarding/caseExportPdfServlet")
public class ExportPdfServlet extends HttpServlet {
     private static final long serialVersionUID = 1L;

     @RequestParam
     Long id;

     @Inject
     EntityManager em;

     // /*@Inject
     // @Resource("XlsDataSourceReport.jrxml")
     // InputStream sourceReport;*/

     @Inject
     private ResourceProvider resourceProvider;

     @Inject
     @Jasper
     ReportCompiler compiler;

     // @Inject
     // JRDataSource jasperDataSource;

     @Inject
     @PDF
     @Jasper
     ReportRenderer<Report> pdfRenderer;

     /**
      * @see HttpServlet#HttpServlet()
      */
     public ExportPdfServlet() {
          super();
          // TODO Auto-generated constructor stub
     }

     /**
      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
      *      response)
      */
     protected void doGet(HttpServletRequest request,
               HttpServletResponse response) throws ServletException, IOException {
          processRequest(request, response);
     }

     /**
      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
      *      response)
      */
     protected void doPost(HttpServletRequest request,
               HttpServletResponse response) throws ServletException, IOException {
          processRequest(request, response);
     }

     protected void processRequest(HttpServletRequest request,
               HttpServletResponse response) throws ServletException, IOException {
          ForwardingCase _case = em.find(ForwardingCase.class, id);
          OutputStream _out = response.getOutputStream();

          InputStream sourceReport = resourceProvider.loadResourceStream("/reports/forwarding-case.jrxml");
          JRDataSource jasperDataSource = new JRBeanCollectionDataSource(
                    _case.getForwardingItems());

          // source
          ReportDefinition report = compiler.compile(sourceReport);

          Map<String, Object> params = new HashMap<String, Object>();
          params.put("forwardingCase", _case);
          

          Report reportInstance = report.fill(jasperDataSource, params);

          // ByteArrayOutputStream os = new ByteArrayOutputStream(_out); //
          // OutputStream
          // Render output as the desired content
          pdfRenderer.render(reportInstance, _out);
          _out.flush();
     }

}

Where is wrong?

[lightguard]

You'd need to pass 'cid' as a param with the conversation ID, and probably have inject the Conversation and call a get or a begin with the id.