[wildfly-dev] Servlet Samples on Beta2 snapshot

[Stuart Douglas]

On Fri, Nov 1, 2013 at 5:40 AM, Arun Gupta <arun.gupta at gmail.com> wrote:

> I tried Servlet samples from:
>
> https://github.com/arun-gupta/javaee7-samples/tree/master/servlet
>
> and encountered the following issues:
>
> 1). An HttpOnly cookie is set as:
>
> cookie = new Cookie("myHttpOnlyCookieKey", "myHttpOnlyCookieValue");
> cookie.setHttpOnly(true);
> cookie.setMaxAge(60);
> response.addCookie(cookie);
>
> and
>
> document.write(document.cookie);
>
> displays the cookie and its value.
>

This is a bug, I have fixed this in undertow upstream.


>
> 2). event-listeners sample is not getting deployed and throwing the
> following exception:
>
> Caused by: java.lang.IllegalArgumentException: UT010012: Listener
> class class
> org.javaee7.servlet.event.listeners.MyHttpSessionBindingListener
> must implement at least one listener interface
>
> even though the class is defined as:
>
> @WebListener
> public class MyHttpSessionBindingListener implements
> HttpSessionBindingListener {
> ...
> }
>

This is a bug in the sample. You should not put a @WebListener annotation
on a HttpSessionBindingListener, it will automatically have its methods
invoked if it is bound to the session (see the javadoc for
WebListener). HttpSessionBindingListener's don't need to be declared.


>
> 3). file-upload sample allows to upload a file and writes it to /tmp
> directory as:
>
> for (Part part : request.getParts()) {
> fileName = part.getSubmittedFileName();
> part.write(fileName);
> }
>
> part.write() is not throwing any exception but not even writing the file.
>

Another bug, I have fixed in undertow upstream.

BTW, you should not really be doing:

try (PrintWriter out = response.getWriter())

There is no need for as it as the container will automatically close the
response for you, and it breaks error page handling, e.g:

try (PrintWriter out = response.getWriter()) {
  throw new MyException();
}

Will never generate an error page, as the try block will close the writer
which commits the response.

Next release of Undertow should be soon, basically straight after the next
XNIO beta release.


>
> 4). In order to try servlet-security sample, I was trying to add a new
> user in application realm as:
>
> ./bin/add-user.sh -g g1-u u1 -p p1 -r ApplicationRealm
>
> but getting:
>
> * Error *
> JBAS015281: The user supplied realm name 'ApplicationRealm' does not
> match the realm name discovered from the property file(s)
> 'ManagementRealm'.
>
> Adding a user in the default realm, as expected, did not pass
> authentication for the secure page. How should the user be added such
> that the credentials can be used in an application ?
>

If you just do add-user.sh with no arguments and follow the prompts it will
work.

The correct command line is:

./bin/add-user.sh -g g1-u u1 -p p1 -r ApplicationRealm -up
application-users.properties -gp application-roles.properties

 Stuart


> Thanks,
> Arun
>
>
> --
> Blog: http://blog.arungupta.me
> Twitter: http://twitter.com/arungupta
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