[ https://issues.jboss.org/browse/CDI-729?page=com.atlassian.jira.plugin.sy... ] Romain Manni-Bucau commented on CDI-729: ---------------------------------------- Not sure what you mean. From the point you can return a CompletionStage and cdi container append it to the "waited" CompletionStage then you are good and can introduce the error handling you want in all layers (either the nested one for internal error handling and backpressure to the fireAsync caller or directly in the caller layer to get a default error handling. Indeed you can stack a lot of promises but it is what you intend with this pattern and if you care (means you dont trust observers) then you combine it with timeouts. In terms of implementations it is really <5mn with tests on cdi impl side. -- This message was sent by Atlassian JIRA (v7.5.0#75005)