Thank you I will check the documentation.

In the meantime I have found that on the heroku website,
following the git commands in the documentation for uploading,
https://lit-savannah-55019.herokuapp.com/
The contents of the index.html file  is served.

meanwhile
mvn jetty:run
localhost:8080
the contents of the servlet are served.
That is very strange !

Previously on the heroku website when I served index.jsp
there was an error message saying JSP is not configured.
Could this behaviour be an indication that somehow  two different versions
of jetty are running on different platforms.


<!--  index.html -->
<html><body>
<h2>Jersey RESTful Web Application!</h2>
<p><a href=v1/myresource>Jersey resource</a>
<p>Visit <a href=http://jersey.java.net> Project Jersey website</a> more
information on Jersey! </p>
<p>contents of index.html </p>
</body></html>


@WebServlet(name="indexServlet", urlPatterns={"index.html"})
public class IndexServlet extends HttpServlet {

private static final long serialVersionUID = 1L;
    protected void doGet(HttpServletRequest request, HttpServletResponse
response)
                            throws ServletException, IOException {

        response.setContentType("text/html");
        PrintWriter out=response.getWriter();
        out.print("<html><body>");
        out.print("<h2>Jersey RESTful Web Application!</h2>");
        out.print("<p><a href=v1/myresource>Jersey resource</a>");
        out.print("<p>Visit <a href=http://jersey.java.net> Project Jersey
website</a> </p>");
        out.print("more information on Jersey!");
        out.print("<p> contents of servlet Indexservlet </p>");
        out.print("</body></html>");
    }
}


On Thu, 25 Mar 2021, 21:28 Jan Bartel, <[email protected]> wrote:

>
> You're using a servlet to serve a welcome file instead of serving a static
> file. There is some ambiguity in the servlet spec around serving of welcome
> files, and jetty's default mode looks for a static resource. There are
> other configuration modes that will let you serve from the servlet without
> any associated static resource  - I think it's "exact" mode on the
> DefaultServlet, but check the jetty doco for the correct setting:
>
>
> https://www.eclipse.org/jetty/documentation/jetty-9/index.html#default-servlet
>
> On Fri, 26 Mar 2021, 06:37 Som Lima, <[email protected]> wrote:
>
>> Something rather strange and unexpected just happened.
>>
>> I put back the index.html file and now the contents of the java servlet
>> class is being published to the browser.
>>
>> The contents of index.html file is being overridden
>>
>> Even a completely empty files called index.html does the trick.
>>
>>
>>
>> On Thu, 25 Mar 2021, 17:15 Simone Bordet, <[email protected]> wrote:
>>
>>> Hi,
>>>
>>> On Thu, Mar 25, 2021 at 4:04 PM Som Lima <[email protected]>
>>> wrote:
>>> >
>>> >
>>> > If I do not have web.xml in the aforementioned project
>>> > and I have a  java class annotated with @WebServlet and also decorated
>>> with urlPattern={"/index.html"}
>>> > I am getting a 500 Errors with localhost:8080/
>>> >
>>> > The java class as servlet  is published in browser with the url
>>> localhost:8080/index.html
>>> >
>>> > Is there anyway to get this java class as servlet to be picked up
>>> > because I feel the servlet  should be registered with the servlet
>>> container and should return
>>> > on localhost:8080/  same as  src/mainwebapp/index.html
>>> src/mainwebapp/index.jsp files.
>>> >
>>> > @WebServlet(name="indexServlet", urlPatterns={"/index.html"})
>>> > public class IndexServlet extends HttpServlet {
>>> >
>>> > private static final long serialVersionUID = 1L;
>>> >
>>> >     protected void doGet(HttpServletRequest request,
>>> HttpServletResponse response)
>>> >                             throws ServletException, IOException {
>>> >
>>> >         response.setContentType("text/html");
>>> >         PrintWriter out=response.getWriter();
>>> >
>>> >         out.print("<html><body>");
>>> >         out.print("<h3>Hello Index Servlet</h3>");
>>> >         out.print("</body></html>");
>>> >     }
>>> > }
>>> >
>>> >
>>> > HTTP ERROR 500 java.lang.ClassCastException: class [Ljava.lang.Object;
>>> cannot be cast to class [Ljava.lang.String; ([Ljava.lang.Object; and
>>> [Ljava.lang.String; are in module java.base of loader 'bootstrap')
>>> >
>>> > URI:/
>>> > STATUS:500
>>> > MESSAGE:java.lang.ClassCastException: class [Ljava.lang.Object; cannot
>>> be cast to class [Ljava.lang.String; ([Ljava.lang.Object; and
>>> [Ljava.lang.String; are in module java.base of loader 'bootstrap')
>>> > SERVLET:default
>>> > CAUSED BY:java.lang.ClassCastException: class [Ljava.lang.Object;
>>> cannot be cast to class [Ljava.lang.String; ([Ljava.lang.Object; and
>>> [Ljava.lang.String; are in module java.base of loader 'bootstrap')
>>> >
>>> > Caused by:
>>> >
>>> > java.lang.ClassCastException: class [Ljava.lang.Object; cannot be cast
>>> to class [Ljava.lang.String; ([Ljava.lang.Object; and [Ljava.lang.String;
>>> are in module java.base of loader 'bootstrap')
>>> > at
>>> org.eclipse.jetty.util.resource.ResourceCollection.list(ResourceCollection.java:426)
>>> > at
>>> org.eclipse.jetty.util.resource.Resource.getListHTML(Resource.java:479)
>>> > at
>>> >
>>> >
>>>
>>> Please open an issue with as much information as possible at
>>> https://github.com/eclipse/jetty.project/issues.
>>>
>>> Thanks!
>>>
>>> --
>>> Simone Bordet
>>> ----
>>> http://cometd.org
>>> http://webtide.com
>>> Developer advice, training, services and support
>>> from the Jetty & CometD experts.
>>> _______________________________________________
>>> jetty-users mailing list
>>> [email protected]
>>> To unsubscribe from this list, visit
>>> https://www.eclipse.org/mailman/listinfo/jetty-users
>>>
>> _______________________________________________
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