In a major JADE release, some changes to the JADE model or interpreter engine require methods that make use of the changed feature to be rebuilt, by recompiling the methods. The upgrade process fails if methods cannot be recompiled.
In earlier releases, the failure of any method to compile failed the upgrade validation and the process exited with error 8701 (General Upgrade error code). The jadloadb or jadclient upgrade process now exits with error 8711 (Uncompiled or in error methods were detected in this database) if recompiling one or methods fails, making it clear that you must reload some methods and restart the validation.