HttpServletResponse.getWriter()

[Todd O'Bryan <to...@mac.com>]

I'm trying to output a plain text page as the result of calling a  
listener. (It's a list of users and auto-created passwords, and I'd  
like it to be savable and printable without much work.)

When I try to get the PrintWriter that corresponds to the  
HttpServletResponse, I get this error:
----------------
javax.servlet.ServletException: getWriter() has already been called for  
this response

org.apache.tapestry.ApplicationRuntimeException: getWriter() has  
already been called for this response
    component:  
org.apache.tapestry.pages.Exception@42a5d9[framework:Exception]
    location: classpath:/org/apache/tapestry/pages/Exception.page, line  
22, column 65

java.lang.IllegalStateException: getWriter() has already been called  
for this response
org.apache.coyote.tomcat5.CoyoteResponse.getOutputStream(CoyoteResponse. 
java:568)
-----------------

Even more strange, it happens twice. Here's the code from my page class:

			try {
				HttpServletResponse response =  
cycle.getRequestContext().getResponse();
				PrintWriter out = response.getWriter();

I know *I'm* not calling getWriter() before this. Does anyone have an  
idea of what could be?

Thanks, and sorry for all the questions. I just deployed for the first  
time today, and my students have found all the bugs I couldn't when I  
was just testing by myself.

Todd


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