Use erasure to handle wildcard types in RfValidator. Restore FindRequest to 2.4 parameterization. Patch by: bobv Review by: rchandia Review at http://gwt-code-reviews.appspot.com/1467814 git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10428 8db76d5a-ed1c-0410-87a9-c151d255dfc7