Hello, I'm getting this error when trying to render images: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: getOutputStream() has already been called for this response at org.apache.catalina.connector.Response.getWriter(Response.java:595) I have radio buttons to dynamically generate and display binary data. The image from the first radio button option displays just fine. When I choose the 2nd one, I get the error. Since I am using JSF along with JSP, the rendering class is defined in faces-config.xml. Is there any way to find out what the response is (i.e., convert to string and print it)? Any ideas much appreciated.    More>>