p:autoComplete Complete Method returns the list in the backend but is not showing in the UI

I have this part in the file

<p:autoComplete required="true" requiredMessage="Value required"
valueChangeListener="#{xxxxx.updateListener}"
id="yy" value="#{ybean.prop}"
completeMethod="#{xxxxx.autoCompleteValues}"
placeholder="Type a Name..." >
</p:autoComplete>


When I am trying to get the list from autoCompleteValues of xxxxx(RequestScoped) class I am able to return it in the backend but it is not displaying in the UI.

Please find the below backend code whose class is RequestScoped:

public List autoCompleteValues(String name) {


List finalList = new ArrayList<>();
try {
//BackingWorkBean is sessionScoped
BackingWorkBean bean = (BackingWorkBean)getValueFromTheFacesSession("backingWkbean");
if(bean == null){
bean = new BackingWorkBean();
setValueToFacesSession(bean, "backingWkbean");//Here getting and putting the objects in FacesContext.externalContext
}

bean.setName(name); //name property to attach it to url query and call API

forwardToServlet();


//forwarded to a Servlet which calls an API and returns the list(Can't disclose details of servlet call) which is set to nameList of bean


finalList= bean.getNameList();

}

catch (Exception e) {
e.printStackTrace();
// TODO: handle exception
}
return finalList;
}


What might be the reason?

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