IllegalStateException- Doubt

[Reema Patel]

Hello All,
I have a JSP file with the following code:

   
Some text here...
<%
out.println("yaho");
out.flush();
%>
<jsp:forward page="/results.jsp" />
 

I'm wondering that why am I not getting a, IllegalStateException here?
I just get to see a page with contents just before the forward call...
Pls. help..

[Gowher Naik]

use errorPage for your page and print exception implicit object in error page and you will get following exception
"java.lang.IllegalStateException: Error: Attempt to clear a buffer that's already been flushed"

[Reema Patel]

Thanks Gowher...I got it running...but I don't understand that why do I need to explicitly set an error page in the JSP file. However, if you try to call sendRedirect() after calling forward() then in that case we don't have to set any error page.