MP Fault Tolerance - unexpected behaviour @Fallback method calls with @Bulkhead ------------------------------------------------------------------------------- Key: WFWIP-308 URL: https://issues.redhat.com/browse/WFWIP-308 Project: WildFly WIP Issue Type: Bug Components: MP Fault Tolerance Reporter: Ondrej Kotek Assignee: Radoslav Husar Priority: Blocker MP FT does behave correctly in case when there is {{@Bulkhead}}, {{@Timeout}} and {{@Fallback}} and {{@Asynchronous}} on service method. Some of requests do not go to fallback method but end with {{InterruptedException}}. Test scenario: - Deploy MP FT service with: {noformat} @Asynchronous @Bulkhead(value = 15, waitingTaskQueue = 15) @Timeout(value = 1000) @Fallback(fallbackMethod = "processFallback") public CompletionStage<MyConnection> bulkheadTimeout(boolean fail) throws InterruptedException { if (fail) { Thread.sleep(2000); } return CompletableFuture.completedFuture(new MyConnection() { @Override public String getData() { return "Hello from @Bulkhead @Timeout method"; } }); } private CompletionStage<MyConnection> processFallback(boolean fail) { return CompletableFuture.completedFuture(new MyConnection() { @Override public String getData() { return "Fallback Hello"; } }); } {noformat} - Send 10+ parallel requests with fail == true Expected result: All requests should go to fallback. Actual Result: Random number of requests (close to the number of requests) go to fallback.