JSF/MyFaces Converter getAsObject() method doesnt get called

Question

I have two h:selectManyList boxes and a custom converter
On form load, right box gets populated with some values and has converter attached to it , the getAsString() method is invoked
When i hit submit button the page it goes directly to the action method without invoking converter
Wondering why its bypassing Validation/Conversion phase and directly going to Invoke Application phase
I verified that i dont have immediate="true" attribute attach to h:selectManyList component and their is no any a4j events i.e. ajax4jsf also . So what exactly is causing the problem
I also set immediate="false" for all the components on page
I am having this problem for couple of days i will appreciate any help.

Answer 1

Thanks for quick response.
Here are the answers.
Is a value being selected by the client?
Not sure what you mean. As i come from search screen, when the form loads the values are automatically populated into right h:selectManyListBox
Is the component's value attribute bound to a backing bean property?
Yes the component's value attribute bound to a backing bean property. In addition to h:selectmanyList component i am HtmlInputHidden Field and Javascript. On Submit the javascript will submit the inputHidden field values to the backing bean. Please note both h:selectmanyList component and inputHidden field component are bound to same backing bean property. Here is the snippet
<h:selectManyListbox id="fqdnPolicies"
                         value="#{updateDeviceBean.fqdnPoliciesSelected}"
                         converter="#{policyConverter}">
                         <f:selectItems value="#{updateDeviceBean.fqdnPolicies}" />
                    </h:selectManyListbox>
                    <h:inputHidden id="selectedFqdnPolicies"
                         value="#{updateDeviceBean.fqdnPoliciesSelected}"
                         converter="#{fqdnPoliciesConverter}" />
<h:commandButton  value="Update"  action="#{updateDeviceBean.updateDevice}" styleClass="button" onclick="return shuttle.setSelected();" />What is the value of that property?
The value as seen from FacesContext.getRequestMap is String i.e. "2, 1,7" and i have custom converter which converts String to List and parsing etc. Unfortunately the getAsObject() which does this doesn't get invoked
What is the result of getValue() on the component?
Null