action listener is not executed

[[EMAIL PROTECTED]]

The action listener is not executed. What could be the reason?
I already made an action in overview.jsp
I get the url
http://localhost:8080/troedel3/overview.jsf;
jsessionid=C53F2E019B32424FC35F7682D18F2C46

category.jsp content will be shown.

This link does not work.

                                <h:commandLink id="Category" action="category" 
actionListener="#
{category.subCategoryActionListener}">
                                        <h:outputText 
value="#{subcat.description}" />
                                        <f:param id="categoryId" name="id" 
value="#{subcat.catId}" />
                                </h:commandLink>