myfaces action method in composite component throws

Question

I'm running into an odd issue with myfaces 2.1.10 (packaged with TomEE) involving composite components and action methods. Essentially, looking at the example below, myfaces seems to thing that the action method is a property instead and throws an ElException. This same code works fine with Mojarra (under jBoss 7.1.2).

Any idea what I'm doing wrong?

Exception:

    javax.el.ELException: /index.xhtml: Property 'act' not found on type com.company.dept.beans.SomeBean
org.apache.myfaces.view.facelets.compiler.AttributeInstruction.write(AttributeInstruction.java:55)
    org.apache.myfaces.view.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:46)
    org.apache.myfaces.view.facelets.compiler.UILeaf.encodeAll(UILeaf.java:505)
    javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
    javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
    org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1981)
    org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
    javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:59)
    org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116)
    org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:199)

Composite component named "menu":

    <composite:interface displayName="Navigation Menu Bar" shortDescription="Navigation menu bar">          
        <composite:attribute name="action" method-signature="java.lang.String action()"/>
    </composite:interface>

    <composite:implementation>
    <div id="#{cc.clientId}:menuComponent">
        <h:form>
            <h:commandButton action="#{cc.attrs.action}" value="execute action" />
        </h:form>
    </div>
    </composite:implementation>

The following page uses the component above

<h:head>
</h:head>
<h:body>
  <menu:menu action="#{someBean.act}"/>
</h:body>
</html>

The backing bean with the action method

package com.company.dept.beans;

import javax.inject.Named;

@Named
public class SomeBean { 

    public String act() {
        System.out.println("ACT CALLED");
        return "SUCCESS";
    }

}

Ali Cheaito Ali Cheaito · Accepted Answer · 2013-11-15T14:34:10

This was due to the way the application was packaged. One of the jars that contained the xhtml was missing a faces-config.xml file and that caused MyFaces not to find it. Oddly enough, Mojarra didn't seem to care...

myfaces action method in composite component throws

1 Answers