JDK 7 compilation error.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@32040 71c3de6d-444a-0410-be80-ed276b4c234a

ui-samples-plugin/src/main/java/hudson/plugins/ui_samples/DropdownList.java

@@ -31,7 +31,7 @@ public class DropdownList extends UISample {
     }
 
     public DescriptorExtensionList<Fruit,Descriptor<Fruit>> getFruitDescriptors() {
-        return Hudson.getInstance().getDescriptorList(Fruit.class);
+        return Hudson.getInstance().<Fruit,Descriptor<Fruit>>getDescriptorList(Fruit.class);
     }
 
     // Process form data and show it as serialized XML