On Mon, Feb 3, 2025 at 3:38 AM Tim N <tnti...@gmail.com> wrote:
>
> I've replicated something similar on Tomcat 10.1.34 (and also 9.0.98). Steps
>
> 1 - Download and unzip Tomcat 10.1.34
> 2 - Create file "webapps/ROOT/include.jsp" with contents "<h1>I've been
> included!</h1>"
> 3 - Edit "webapps/ROOT/index.jsp" adding the following code at the bottom
> of the JSP
>
> ```
> <%
> String bigString = "<span style=\"color: red;\">This is a big
> string</span>";
> for (int i = 0; i < 100; i++) {
> bigString += "<span style=\"display: none;\">This is a big
> string</span>";
> }
> request.setAttribute("bigString", bigString);
> request.setAttribute("length", bigString.length());
> %>
> <p>isCommitted=<%= response.isCommitted() %></p>
> <p>${bigString}</p>
> <p>length=${length/1024}</p>
> <p>isCommitted=<%= response.isCommitted() %></p>
> <p>Before Include</p>
> <jsp:include page="include.jsp"/>
> <p>After Include</p>
> ```
>
> 3 - Start Tomcat (using Java 17)
> 4 - Load page http://localhost:8080/
> 5 - The text "I've been included!" is missing
>
I cannot really reproduce it (tried on trunk). You should look at the
log files. If there is a problem including it should be reported there
instead of getting an error report in the browser (since the repose is
committed already, as you can see).
I did run into this situation by accident due to my page directive (I
copied from index.jsp), which had <%@ page session="false", and the
included resource did not. This then produced an exception when the
included page wanted a session. This was in the logs as an ISE.
Rémy
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