LGTM Minor nit, but no need to upload another patch. I'll switch to onAttach/onDetach before submitting.
http://gwt-code-reviews.appspot.com/1615804/diff/1/user/src/com/google/gwt/user/client/ui/DeckLayoutPanel.java File user/src/com/google/gwt/user/client/ui/DeckLayoutPanel.java (right): http://gwt-code-reviews.appspot.com/1615804/diff/1/user/src/com/google/gwt/user/client/ui/DeckLayoutPanel.java#newcode201 user/src/com/google/gwt/user/client/ui/DeckLayoutPanel.java:201: public void onLoad() { These should probably go in onAttach/onDetach instead of onLoad/onUnload. Users may not call super.onLoad/onUnload, but if you override onAttach/onDetach you must call the super methods. http://gwt-code-reviews.appspot.com/1615804/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors