Use the reproducer remote-ejb-EJBCLIENT000011.zip attached. The overview of this reproducer: The first thread starts and invokes the remote EJB which needs long processing time. ..... (1) After that, the second thread starts and repeats invocation to the remote EJB more than 65536 times before (1) finishes. ..... (2) Each invocation to the remote EJB in (2) completes in a short period of time. Once the remote EJB in (1) finishes its work, EJBCLIENT000011 message occurs from the EJB client. Steps to reproduce is as follows: 1. Start a standalone EAP server. 2. Extract remote-ejb-EJBCLIENT000011.zip. 3. Build the reproducer. ..... (*1) $ cd remote-ejb-EJBCLIENT000011 $ mvn package 4. Deploy remote-ejb-EJBCLIENT000011-1.0.0.jar. 5. Run TestMain. ..... (*3) 2 or 3 minites later after starting TestMain, EJBCLIENT000011 message will occur and TestMain will not end because of the first thread's infinite wait for response. (*1) Before execute mvn, modify providerIpPort at FIXME in src/test/java/TestMain.java appropriately. (*2) Run add-user.sh to add an application user. (Username "jboss" and password "jbossjboss#2") (*3) For reference, see run_test.sh in remote-ejb-EJBCLIENT000011 I used for running TestMain. You can use it by making modification appropriately. Actual results: The first thread of TestMain waits for the response of the invocation indefinitely and TestMain never ends. Expected results: The first thread of TestMain receives the response of the invocation and TestMain successfully ends.