How to configure so that Content assist will work in eclipse or jboss

[aspirations]

I am following this project https://github.com/joinfaces/joinfaces-maven-jar-example
I have downloded it and import it as maven project in Jboss Developer Studio but the content assist is not working.
Is there any configuration which need to be done in jboss or it does not support.
The project does not have faces-config.xml or web.xml will adding this help if yes then how to do that.
Please let me know if join faces does not support this.

<p:inputText value="ctrl + space not working"/>

@persapiens