Why jws doesn't start when i use jsp as dynamic jnlp?

Question

hello everyone,
i use a jsp as dynamic jnlp to resolve the relative codebase problem,but jws can not start. while i use jnlp, there is no problem.i check the http head the jsp reterned,it seems no problem (it returns "application/x-java-jnlp-file" content type), but jws does not start and the browser opens it as a plan text. below is the http head the jsp and jnlp returned, i can not see any obvious difference that prevent jws start. hope somobody can help me, thanks.
the jsp http head:
HTTP/1.1 200 OK
Content-Type: application/x-java-jnlp-file
Date: Wed, 07 Aug 2002 02:52:31 GMT
Server: Apache Tomcat/4.0.2 (HTTP/1.1 Connector)
Connection: close
Set-Cookie: JSESSIONID=EDAB1A3175B3D319BA33AE090EB973BF;Path=/webims
the jnlp http head:
HTTP/1.1 200 OK
Content-Type: application/x-java-jnlp-file
Content-Length: 372
Date: Wed, 07 Aug 2002 02:49:58 GMT
Server: Apache Tomcat/4.0.2 (HTTP/1.1 Connector)
Connection: close
Last-Modified: Wed, 07 Aug 2002 02:35:19 GMT
ETag: "372-1028687719000"
the response body is same. here is part of the jsp file:
<%@ page contentType="application/x-java-jnlp-file"%>
<%
StringBuffer codebaseBuffer = new StringBuffer();
codebaseBuffer.append(!request.isSecure() ? "http://" : "https://");
codebaseBuffer.append(request.getServerName());
if (request.getServerPort() != (!request.isSecure() ? 80 : 443))
codebaseBuffer.append(':');
codebaseBuffer.append(request.getServerPort());
codebaseBuffer.append(request.getContextPath());
%>
<?xml version="1.0" encoding="UTF-8"?>
<jnlp codebase="<%=codebaseBuffer.toString()%>" href="<%=request.getRequestURI()%>">

Answer 1

I get the same problem since I moved to Tomcat 4.1.18.
The difference is that when I look at a jnlp, I get
Date: Tue, 18 Mar 2003 10:58:25 GMT
Server: Apache/1.3.26 (Unix) mod_jk/1.2.0 mod_ssl/2.8.10 OpenSSL/0.9.6b PHP/4.2.3 FrontPage/5.0.2.2510
Content-Length: 1355
Content-Type: application/x-java-jnlp-file
Last-Modified: Mon, 17 Mar 2003 15:58:46 GMT
Client-Date: Tue, 18 Mar 2003 10:58:25 GMT
Client-Peer: 192.197.110.222:80
and at a jsp:
Date: Tue, 18 Mar 2003 11:06:10 GMT
Server: Apache/1.3.26 (Unix) mod_jk/1.2.0 mod_ssl/2.8.10 OpenSSL/0.9.6b PHP/4.2.3 FrontPage/5.0.2.2510
Content-Type: application/x-java-jnlp-file;charset=ISO-8859-1
Client-Date: Tue, 18 Mar 2003 11:06:10 GMT
Client-Peer: 192.197.110.222:80
Set-Cookie: JSESSIONID=026BF3209EC094A4045F1D37C2A0E98B;Path=/
Could the difference be ;charset=ISO-8859-1
How to remove that, in my jsp I just have :
<% response.setContentType("application/x-java-jnlp-file"); %>
Help
Benoit