The class behind ui:include JSF tag
implementation, java, jsf, uiinclude
Solution
That's implementation dependent.
In Mojarra, it's the `com.sun.faces.facelets.tag.ui.IncludeHandler`. In MyFaces, it's the `org.apache.myfaces.view.facelets.tag.ui.IncludeHandler`.
Problem
How is the `ui:include` tag implemented? Where can I find its implementation(source code)?