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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15032

Headers get corrupted when used with mod_jk/mod_jk2 and apache 2.0.43

           Summary: Headers get corrupted when used with mod_jk/mod_jk2 and
                    apache 2.0.43
           Product: Tomcat 4
           Version: 4.1.12
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Major
          Priority: Other
         Component: Connector:Coyote JK 2
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Using the following test case the header values show content from the output
stream.  This happens only when the response is relatively large and the headers
have not been requested until after a relatively large response has been
written.  Definitely happens with Mozilla 1.0.1 when a user does a shift reload.  
to test:
compare the output between
http://localhost:8080/search/jk_test.jsp?lines=500 (no mod_jk)
http://localhost/search/jk_test.jsp?lines=500 (with mod_jk)


<%@ page language="java" %>
<%@ page import="java.util.*, java.io.*" %>

<%! void writeHeaders(HttpServletRequest request, JspWriter out)
  throws IOException {
     Enumeration enum = request.getHeaderNames();
     while(enum.hasMoreElements()) {
       String name = (String) enum.nextElement();
       String headerString = "Header Name:" + name + " Header Value:" +
request.getHeader(name);
       out.print(headerString);
       //print to std out to make sure it is not getting
       //corrupted on the way out
       System.out.println(headerString);
       out.println("<br>");
     }
    }
%>
<%! static final DEFAULT_COUNT = 400; /*default no of lines to write*/ %>
<%
  boolean writeBefore = false;
  int lineCount = DEFAULT_COUNT;  //should be large enought to invoke demo errors
  String doWriteBefore = request.getParameter("write_before");
  String lnCount = request.getParameter("lines");
  writeBefore = Boolean.valueOf(doWriteBefore).booleanValue();

  try {
    lineCount = Integer.parseInt(lnCount);
  } catch (NumberFormatException ne) {
    lineCount = DEFAULT_COUNT;
  } catch (NullPointerException ne) {
    lineCount = DEFAULT_COUNT;
  }

%>
<html>
        <body>
         <%-- write headers before we write a large response--%>
         <% if (writeBefore) { %>
         <% writeHeaders(request, out); %>
         <% } %>

        <%for (int i=0; i < lineCount; i++) {%>
          This is a really big html file... with lots of data<br>
        <% } %>

          <%-- write headers after we have a written a response --%>
          <% writeHeaders(request, out); %>
        </body>
</html>

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