com.google.gwt.user.client

## Annotation Type AsyncProxy.AllowNonVoid

-     @Documented
      @Target(value=TYPE)
      public static @interface AsyncProxy.AllowNonVoid

  If this annotation is applied to an AsyncProxy type, it will be legal for the parameterized type `T` to declare non-void methods. These methods will immediately return a default value of 0, false, or null if the proxy has not yet instantiated the backing object. The use of this annotation may cause surprising operation if the consuming code does not expect this behavior; for example a call to a property setter followed by a call to the getter could return null,
  See Also:
    `AsyncProxy.DefaultValue`