EJB Asynchronous pass POJO by reference leading to ClassCastException errors in remote invocations -------------------------------------------------------------------------------------------------- Key: WFLY-4331 URL: https://issues.jboss.org/browse/WFLY-4331 Project: WildFly Issue Type: Bug Components: EJB Affects Versions: 9.0.0.Alpha1 Reporter: Brad Maxwell Assignee: Brad Maxwell Fix For: 9.0.0.Beta1 When invoking EJB asynchronous in different deployments and returning a POJO object, which will be retrieved using future.get, we have ClassCastException error. {code} 12:53:50,147 ERROR [io.undertow.request] (default task-2) UT005023: Exception handling request to /testejb-web/async: java.lang.ClassCastException: rh.test.ReturnObject cannot be cast to rh.test.ReturnObject at rh.test.AsyncServlet.doGet(AsyncServlet.java:29) [classes:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:259) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:246) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:75) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:165) [undertow-servlet-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:737) [undertow-core-1.1.0.Beta7.jar:1.1.0.Beta7] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_51] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_51] at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_51] {code}