same problem for 5.2.2 that after hitting the configuration icon, all the gadgets supposed to be showing up are not showing and no where to add new Google Gadgets. Same problem exhibits on Liferay Portal 4.4.2 too. Guess it's some problem related to the Google Gadget Server change not reflecting on all the versions of Google Gadget portlet.

I am not able to add a gadget by url, I'm getting this error:


19:48:41,439 ERROR [[Main Servlet]:711] Servlet.service() for servlet Main Servlet threw exception
java.lang.NoSuchMethodError: com.liferay.portlet.PortletPreferencesFactoryUtil.getPortletSetup(Ljavax/portlet­/ActionRequest;Ljava/lang/String;)Ljavax/portlet/PortletPreferences;
at com.liferay.googlegadget.action.ConfigurationActionImpl.processAction(Configurat­ionActionImpl.java:60)
at com.liferay.portlet.portletconfiguration.action.EditConfigurationAction.processA­ction(EditConfigurationAction.java:84)

I'm having the same issue with the 5.1.1 version on LR 5.1.2.. That is, the list of gadgets is not shown. I had seen this a while back and after some time (a day or so) the list started to show... Anyone knows what's going on?

For me it is not working either (except when using direct URLs to the XML configuration files, that I am getting better at). The bug is explained on
http://issues.liferay.com/browse/LPS-2565
There are two wars associated with that issue, but they do not work for me. The list of all gadgets is back, but I am not able to select one.

About this integration in general, very interesting google gadgets like the GMail one and the calendar/ agenda one do not appear to work correctly on a LifeRay site, and user settings in gadgets also appear not to be supported.