Try this when you generate the chart: | Object responseObject = FacesContext.getCurrentInstance().getExternalContext().getResponse(); | if (responseObject instanceof RenderResponse) { | BufferedRenderResponseWrapper brrw = (BufferedRenderResponseWrapper)responseObject; | RenderResponse response = brrw.getResponse(); | response.getPortletOutputStream().write(getFiles().get((Integer)object).getData()); | | }else{ | //servlet response | stream.write(getFiles().get((Integer)object).getData()); | } | | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4251028#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...