How to handle multiple exception types in JSF 2?

I'm trying to handle multiple exception types in JSF2, including a default error page for any unexpected exception types. The problems I'm having are:
1) ViewExpiredException is handled only when no generic exception handler is specified
2) "Regular" exceptions like NullPointerException are never handled
My managed bean:
@Named
@SessionScoped
public class MyController implements Serializable {
/* A method that does nothing */
public void doNothing() {
    //do nothing
/* Generate a null pointer exception on purpose */
public void generateNpe() throws NullPointerException {
    Object x = null;
    x.toString();
My test page to generate the exception:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core">
<h:head>
    <title>Test page</title>
</h:head>
<h:body>
    <h:form>
        <h:commandButton id="button1" value="do nothing" action="#{myController.doNothing}" />
        <h:commandButton id="button2" value="generate NPE" action="#{myController.generateNpe}" />
    </h:form>
</h:body>
</html>
My web.xml:

<error-page>
    <exception-type>java.lang.NullPointerException</exception-type>
    <location>/error/error003.jsf</location>
</error-page>

<error-page>
    <exception-type>javax.faces.application.ViewExpiredException</exception-type>
    <location>/error/error002.jsf</location>
</error-page>

<error-page>
    <exception-type>java.lang.Exception</exception-type>
    <location>/error/error001.jsf</location>
</error-page>My questions are as follows:
1) How can we handle "regular" java exceptions like NPE?
2) How can we define a catch-all for unexpected exception types, while still respecting specific exception handlers for VEE, etc?
Thanks,
Benjamin

Is your data model right? If you are adding in one and deleting in another it sounds to me more like a process that an entity, in which case you may revisit your data model and simplify it, add in a session bean with the process method to co-ordinate between the two.
However, if you want to map multiple different tables within a single entity bean it is possible and just part of the mapping. How you actualyl specify it depends on which implementation you are working with.
Cheers,
Peter.

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