LGTM
http://gwt-code-reviews.appspot.com/104811/diff/1/2 File user/src/com/google/gwt/xhr/client/XMLHttpRequest.java (right): http://gwt-code-reviews.appspot.com/104811/diff/1/2#newcode118 Line 118: self.onreadystatechange = new Function(); Out of curiosity, why can't you set onreadystatechange to null, or delete it? http://gwt-code-reviews.appspot.com/104811 -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
