Thanks for this! One testing request if you can get to it.
http://gwt-code-reviews.appspot.com/1388804/diff/1/user/test/com/google/gwt/event/shared/ResettableEventBusTest.java File user/test/com/google/gwt/event/shared/ResettableEventBusTest.java (right): http://gwt-code-reviews.appspot.com/1388804/diff/1/user/test/com/google/gwt/event/shared/ResettableEventBusTest.java#newcode94 user/test/com/google/gwt/event/shared/ResettableEventBusTest.java:94: // eventBus2.registration.size() == 1 && subject.registration.size() == 0 I think it would be fine to add a package private method to allow the test peek at the registration size, with javadoc "Visible for testing" http://gwt-code-reviews.appspot.com/1388804/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
