HTTP Filtered ValueSet Provider - ERROR

I am trying to create value set provider as described in this article- https://jazz.net/library/article/1257
I have created xml file and copied it under   JazzTeamServer\server\tomcat\webapps\ROOT\example_data\makes.xml

But when i hit the test it throws below error-

Problems accessing 'http://localhost:9443/example_data/makes.xml': Connection to http://localhost:9443 refused

I tried to access http://localhost:9443/example_data/makes.xml in browser and it works fine.

What could be the issue here ?

Thanks
Akshay P