Why passing string from applet to jsp doesn't work?

Hi,all:
I have a application requires applet to get client side info, then pass this "info"--string to the JSP.
Applet code:
try{
     URL url = new URL(getCodeBase(),"test.jsp?
java.version=1.2.2&java.vendor=Sun);
     URLConnection conn = url.openConnection();
     conn.setDoOutput(true);
     conn.setUseCaches(false);
     conn.setRequestProperty("Content-Type", "application/octet-stream");
     conn.connect();
} catch (Exception e) {
     System.out.println("The error is at URL:"+e.getMessage());
My jsp code is:
<%
String java_version=request.getParameter("java.version");
String java_vendor=request.getParameter("java.vendor");
%>
However, it doesn't work. Could anybody help me figure out?
Thanks in advance.
Paul

Request Jsp with
test.jsp?URLEncoder.encode("java.version")=URLEncoder.encode("java.version.value")&URLEncoder.encode("java.vendor")=
URLEncoder.encode("java.vendor.value")

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