Cocoon Portal with Resin?

[Sean McKaharay]

I have the cocoon portal example on a Resin box but I get an error message
when I try to login to guest. It works fine on tomcat but when I deploy it to
Resin it gives me this error:
 

500 Servlet Exception

java.lang.IllegalStateException: can't clear response after writing headers
        at
com.caucho.server.http.ResponseStream.clear(ResponseStream.java:201)
        at com.caucho.server.http.Response.reset(Response.java:1262)
        at com.caucho.server.http.Response.reset(Response.java:1244)
        at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1115)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.java:96
)
        at com.caucho.server.http.Invocation.service(Invocation.java:312)
        at
com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
        at
com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:221)
        at
com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:163)
        at com.caucho.server.TcpConnection.run(TcpConnection.java:137)
        at java.lang.Thread.run(Thread.java:536)

  _____  

Resin 2.1.5 (built Fri Oct 4 12:10:31 PDT 2002) 
 
 
Any suggestions on what the problem is?
 
Thanks