I'm catching all exceptions within: java.lang.Throwable /page.xhtml java.lang.Error /page.xhtml

But what If I get eg a hibernate ex: org.hibernate.exception.ConstraintViolationException

Do I have to define error-pages for EVERY maybe occuring exception? Can't I just say "catch every exception"?

Update

Redirect on a 404 works. But on a throwable does not!

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.jsf</url-pattern>
    <url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<error-page>
    <exception-type>java.lang.Throwable</exception-type>
    <location>/error.xhtml</location>
</error-page>
<error-page>
    <error-code>404</error-code>
    <location>/error.xhtml</location>
</error-page>