action method is not called in JSF [duplicate]

Answer 1

I'm citing from this answer:

Whenever an UICommand component fails to invoke the associated action, verify the following:

1. UICommand components must be placed inside an UIForm component (e.g. h:form).
2. You cannot nest multiple UIForm components in each other (watch out with include files!).
3. No validation/conversion error should have been occurred (use h:messages to get them all).
4. If UICommand components are placed inside an UIData component, ensure that exactly the same DataModel (the object behind the UIData's value attribute) is preserved.
5. The rendered and disabled attributes of the component and all of the parent components should not evaluate to false during apply request values phase.
6. Be sure that no PhaseListener or any EventListener in the request-response chain has changed the JSF lifecycle to skip the invoke action phase.
7. Be sure that no Filter or Servlet in the same request-response chain has blocked the request fo the FacesServlet somehow.

Another cause can be that you're not running the code you think you're running.