java.io.NotSerializableException: org.omnifaces.taghandler.Converter

Question

I would like to use OmniFaces ListConverter as my converter on PrimeFaces autocomplete. Unfortunately the following exception pops out when I tried

Answer 1

This is a bug in MyFaces. I can't tell which MyFaces version exactly contains the fix, but I can tell that this construct works fine in at least MyFaces 2.1.12. However, upgrading MyFaces in WebSphere might not be a trivial task (technically and bureaucracy).

Your best bet is to tell MyFaces to not serialize the whole view state in session, but instead keep it in memory and hold a reference (like as Mojarra by default does). You can do that via the following context param in web.xml:

<context-param>
    <param-name>org.apache.myfaces.SERIALIZE_STATE_IN_SESSION</param‌​-name>
    <param-value>false</param-value>
</context-param>