omnifaces

I've been trying to get an app up and running using jsf 2.3, primefaces 6 and omnifaces 2.6.1 on Wildfly 10. I have already splitted the jsf 2.3 (api and impl) and completed the set up for WildFly. The applications starts smoothly without omnifaces 2.6.1. But right when I add the omnifaces jar to the application classpath (/lib) this one fails at start up, giving the next exception: 13:21:52,024 SEVERE [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 78) Critical error during deployment: : com.sun.faces.config.ConfigurationException: CONFIGURATION FAILED! null

So after being confronted with the dreaded javax.faces.application.ViewExpiredException , I had to go look around the internet to find the proper solution. Fortunately, the solutions are readily available and I went ahead and adopted the OmniFaces FullAjaxExceptionHandler . Enough said, as with pretty much everything from OmniFaces, it worked wonders. But, every time I have a view expiring I am getting : SEVERE: WebModule[/myModule]FullAjaxExceptionHandler: An exception occurred during processing JSF ajax request. Error page '/WEB-INF/errorpages/test.xhtml' will be shown. javax.faces

In my JSF 2 based application I have a form that includes (amongst other UI components) some checkboxes. On the checkboxes I have registered ajax requests that fire when they are checked. The ajax requests will actually just update the value of another checkbox in the backing bean. As a result the other checkbox will also be checked (when it gets re-rendered - as it will take the updated value from the backing bean in the render response phase). This works fine until the whole form gets submitted and validation errors occur. Then the ajax requests still work and change the value on the backing

I'm planning to convert a web app from using JSF managed bean to using CDI managed beans. I know I'll need to do below: Add a empty beans.xml file in WEB-INF. Replace all JSF @ManagedBean to CDI @Named annotations. Replace all JSF scope annotations with CDI or OmniFaces scope annotations. Replace all JSF @ManagedProperty with CDI @Inject annotations. Is that all that needs to be done? Are there any gotchas that I need to be aware of? Basically, that's indeed all you need to do provided that you're on a Java EE server already. When on Tomcat, you'd need to manually install CDI first.