ADF 中 jsf jspx

jsf just is a option in jdev11.1.2.x

when you choose to create a new JSF page you get a jsff (for fragments) or a jspx page

you have to use jspx pages in 11.1.1.6.0 as you can't use jsf pages.

The option to create jspx files in 11.1.2.x is under the JSP node and not under the JSF node when you create a new page.