Handling exception during async event - contradiction? ------------------------------------------------------ Key: CDI-543 URL: https://issues.jboss.org/browse/CDI-543 Project: CDI Specification Issues Issue Type: Bug Components: Events Affects Versions: 2.0-EDR1 Reporter: Tomas Remes In {{10.5. Observer notification}} there is (wrt sync observer method): {quote} Otherwise, the exception aborts processing of the event. No other observer methods of that event will be called {quote} This looks like contradiction to {{10.5.1. Handling multiple exceptions thrown during an asynchronous event}} where is: {quote} If an event is asynchronous, and an exception is thrown by any of its notified observers, the CompletionStage returned by fireAsync will complete exceptionally .. {quote} The question is following: Async Event is fired -> some sync observers are notified -> one of them throws exception -> async observers will be notified or not? I assume they should be notified and therefore {{10.5. Observer notification}} needs an update.