p:menuButton console error this.getMenu() is null

[kurt]

I have the following ajax tag in an h:selectBooleanCheckbox:

<f:ajax execute="@this" render=":actions_more_header" listener="#{selectController.actionSelect}"/>

This works fine when I place other tag IDs in for the render attribute, but for p:menuButton I get this console error:
Error: this.getMenu() is null
Source File: https://localhost:8181/oms/primefaces_r ... /button.js
Line: 1 - this.getMenu().subscribe("click",this.handleClick,this,true)};

I simplified the menu button down to this and still get the error.
<h:form id="actions_more_header">
<p:menuButton value="Menu Header">
<p:menuitem value="Menu Item"/>
</p:menuButton>
</h:form>

Any ideas what's going on?

[cagatay.civici]

Try p:ajax.

[kurt]

The listener I have passes an AjaxBehavior event. It seems as though p:ajax has a different behavior for the listener attribute. Is there a way to get it to work without changing the method signature?

[cagatay.civici]

2.2.M1's p:ajax supports passing an AjaxBehaviorEvent as well as no-argument method. 2.1 doesn't have this.

[kurt]

Sounds good. I can live without using this until 2.2

[cagatay.civici]

Cool, 2.2.M1 should be out soon hopefully.