Hello,

I'm trying to dynamically generate an iframe using a4j:mediaoutput (RichFaces version richfaces 3.3.3.Final, jboss 4.2.3 env.).

I figured it should be something like this:

HtmlAjaxOutputPanel mainPanel = new HtmlAjaxOutputPanel();
          mainPanel.setId(facesContext.getViewRoot().createUniqueId());
               MediaOutput mediaOutput = new MediaOutput();
               mediaOutput.setId("htmlRenderer");
               mediaOutput.setSession(true);
               mediaOutput.setCacheable(false);
               mediaOutput.setElement("iframe");
               mediaOutput.setMimeType("text/html");
               mediaOutput.setUriAttribute("src");
               MediaData data = new MediaData();
               data.setSrc("http://www.google.it");
               mediaOutput.setValue(data);
          mainPanel.getChildren().add(mediaOutput);

The error I'm getting is:

ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
java.lang.NullPointerException
     at org.ajax4jsf.resource.UserResource.send(UserResource.java:110)
     at org.ajax4jsf.resource.ResourceLifecycle.sendResource(ResourceLifecycle.java:221)
...

Any ideas?

Thank you.