You can find the full source code for this website in the Seam package in the directory /examples/wiki. It is licensed under the LGPL.
Download latest release from GMaps4JSF
Add script element to head tag of template.xhtml
<script src="http://maps.google.com/maps?file=api&v=2& key=ABQIAAAAxrVS1QxlpJHXxQ2Vxg2bJBT2yXp_ZAY8_ufC3CFXhHIE1NvwkxS9AOPy_YJl48ifAy4mq6I8SgK8fg" type="text/javascript"> </script>
Add in the namespace to your view
xmlns:m="http://code.google.com/p/gmaps4jsf/"
Example of google maps with map and controls
<rich:panel> <f:facet name="header">Google maps</f:facet> <m:map address="Dublin" width="500px" height="500px"> <m:mapControl name="GLargeMapControl" position="G_ANCHOR_BOTTOM_RIGHT"/> <m:mapControl name="GMapTypeControl"/> </m:map> </rich:panel>