javax.el.ELException on RichFaces fileUpload

Question

If I deploy my webapp on a tomcat 8 with java 1.8, I got this error:

org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [Faces Servlet] in context with path [/mywebapp] threw exception [/fileupload.xhtml: Property 'listener' not found on type mywebapp.UploadController] with root cause javax.el.ELException: /fileupload.xhtml: Property 'listener' not found on type mywebapp.UploadController

Code of fileupload.xhtml:

 <rich:fileUpload fileUploadListener="#{uploadController.listener}"
                         id="dataupload"
                         listHeight="100px"
                         maxFilesQuantity="100"/>

The class UploadController:

public class UploadController {
...
    public void listener(FileUploadEvent e) throws Exception {
       final UploadedFile item = e.getUploadedFile();
       ...
    }
}

If I start my webapp locally with a jetty, everything works perfectly.

Where is the error?