Disable all default HTTP error response content in Tomcat

Solution 1:

If you do not want tomcat to show an error page, then do not use sendError(...). Instead use setStatus(...).

e.g. if you want to give a 405 response, then you do

response.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED);      
response.getWriter().println("The method " + request.getMethod() + 
   " is not supported by this service.");

Also remember not to throw any Exceptions from your servlet. Instead catch the Exception and, again, set the statusCode your self.

i.e.

protected void service(HttpServletRequest request,
      HttpServletResponse response) throws IOException {
  try {

    // servlet code here, e.g. super.service(request, response);

  } catch (Exception e) {
    // log the error with a timestamp, show the timestamp to the user
    long now = System.currentTimeMillis();
    log("Exception " + now, e);
    response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    response.getWriter().println("Guru meditation: " + now);
  }
}

of course, if you do not want any content, then just don't write anything to the writer, just set the status.

Solution 2:

Although this doesn't respond exactly to the "not send anything" statement on the question, and on the wave of Clive Evans' answer, I found out that in tomcat you can make those too much verbose texts go away from error pages without creating a custom ErrorReportValve.

You can accomplish to this customizing ErrorReportValve through the 2 params "showReport" and "showServerInfo" on your "server.xml":

<Valve className="org.apache.catalina.valves.ErrorReportValve" showReport="false" showServerInfo="false" />

Link to official documentation.

Worked for me on tomcat 7.0.55, didn't work for me on tomcat 7.0.47 (I think because of something reported on the following link http://www.mail-archive.com/[email protected]/msg113856.html)