http://gwt-code-reviews.appspot.com/1251801/diff/30001/31010 File user/src/com/google/gwt/user/server/Util.java (right):
http://gwt-code-reviews.appspot.com/1251801/diff/30001/31010#newcode76 user/src/com/google/gwt/user/server/Util.java:76: if (cookieName == null || request == null) { Precondition isn't part of GWT, and this seems too insignificant to add another external dependency. http://gwt-code-reviews.appspot.com/1251801/show -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
