FireAsyncException conflicting with CompletionStage definition -------------------------------------------------------------- Key: CDI-548 URL: https://issues.jboss.org/browse/CDI-548 Project: CDI Specification Issues Issue Type: Clarification Components: Events Affects Versions: 2.0-EDR1 Reporter: Jozef Hartinger Fix For: 2.0 (proposed) CompletionStage documentation says: {quote} if a stage's computation terminates abruptly with an (unchecked) exception or error, then all dependent stages requiring its completion complete exceptionally as well, with a {@link CompletionException} holding the exception as its cause. {quote} On the other hand, the CDI spec suggests that if an observer notification fails, the CompletionStage fails with FireAsyncException directly (not wrapped within CompletionException). This creates a conflict as the CDI spec uses the CompletionStage API without fully conforming to its contract.