@@ -0,0 +1,173 @@
+package router.client.util;%0A%0Apublic final class RouterRuntime%0A%7B%0A  private RouterRuntime()%0A  %7B%0A  %7D%0A%0A  public static boolean enableValidityChecks()%0A  %7B%0A    return true;%0A  %7D%0A%7D%0A

Add class that can be replaced by GWT to control the checks and guards in place