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[10:23:32 CST(-0600)] <drewwills> i originally thought we could just set the list to null, but the classes generated by jaxb don't seem to support that
[10:24:05 CST(-0600)] <drewwills> so i have 2 other ideas, and i like to see if you fancy one of them 
[10:24:36 CST(-0600)] <drewwills> (1) we could use a PortletPreference (e.g. showUpdates, default true)