> Hello,
>
> I noticed that when using HttpServletResponse.sendError in Tomcat 7.0.90
> with string message the message is no longer shown as the response is
> displayed.
>
> I reproduce this with request to simple servlet:
>
>
>
> * public void doGet(HttpServletRequest request, HttpServletResponse
> response) throws ServletException, IOException {
> response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "TEST
> ERROR MESSAGE"); }*
>
> The result in the browser is different:
>
> In Tomcat 7.0.90 HTTP Status 500 ? Internal Server Error
>
> In Tomcat 7.0.88 HTTP Status 500 - TEST ERROR MESSAGE
>
> I think that this change is the cause [1]
>
> However, this change looks incompatible with servlet spec and breaks our
> integration tests. It seems to me from the spec [2] that the message should
> be displayed: *The server defaults to creating the response to look like an
> HTML-formatted server error page containing the specified message, setting
> the content type to "text/html"*
>
> I use the ErrorReportValve and showReport is set to false. Reading [3]
> doesn't clarify if error message is part of the error report or not and if
> it should be displayed.
>
> Thanks,
> Assia
>
>
> [1] https://bz.apache.org/bugzilla/show_bug.cgi?id=60490
> [2]
> https://docs.oracle.com/javaee/7/api/javax/servlet/http/HttpServletResponse.html#sendError-int-java.lang.String-
> [3]
> https://tomcat.apache.org/tomcat-7.0-doc/config/valve.html#Error_Report_Valve
I wrote the new code and I do think that this change just triggered this bug in
Tomcat.
Frankly, I see the same error here in production for quite some time, but wasn't
able to fully isolate the issue to a simple test case. Can you?
What you see is that some Tomcat-internal code resets the response back to
normal
which you see that the en dash is not properly rendered because the character
encoding is dropped.
The Servlet Spec does not specify how the report shall look like, it is at the
discretion of the container, you should rely on that at all.
Though, I'd be very greatful if you can isolate the case, I'd really want to fix
this.
Michael
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