ClassCastExceptions and unexpected ServletContainerInitializer executions ------------------------------------------------------------------------- Key: WFLY-11082 URL: https://issues.jboss.org/browse/WFLY-11082 Project: WildFly Issue Type: Bug Components: Web (Undertow) Affects Versions: 14.0.1.Final Reporter: Alexander Kudrevatykh Assignee: Jason Greene Attachments: dependencies.zip I got unexpected ClassCastExceptions in setup as in attached test ServiceLoader provide only one instance of SCI, but wildlfy executes it twice More weird - wrong Set of classes passed to onStartup method - classes are not extends @HandlesTypes annotation (because they loaded with different classloaders) sorry for complex description, look for attached test