Hi Thanks erik Use static, wich is not great , but work.
Here is the simplified solution : I use MyWorkActivity.back() instead of History.back() class MyWorkActivity extends AbstractActivity { public static boolean allowStopWithoutWarning; /** * @see com.google.gwt.activity.shared.AbstractActivity#mayStop() */ @Override public String mayStop() { if (allowStopWithoutWarning) { allowStopWithoutWarning = false; return null; } return "Have you finished your work ?"; } /** * @see History#back() */ public static void back() { allowStopWithoutWarning = true; History.back(); } ... } -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.