This change is to correctly respect the default extension search order for resources. So, for example, an image resource is first searched in the order:
resourceName.png resourceName.jpg resourceName.gif This change makes sure we verify that if a resolved image is resourceName.jpg, that we record that there was no resource found for resourceName.png. http://gwt-code-reviews.appspot.com/1466804/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
