JGRP000225: failed unmarshalling buffer into return value --------------------------------------------------------- Key: JGRP-2263 URL: https://issues.jboss.org/browse/JGRP-2263 Project: JGroups Issue Type: Bug Affects Versions: 4.0.11 Environment: jdk1.8.0_66.jdk osx 10.10 & ubuntu 17.10 Reporter: rama rama Assignee: Bela Ban Fix For: 4.0.12 Attachments: SimpleChat.java trying to send a class that previous work with 3.x return "failed unmarshalling buffer into return value" jgroups instance it's configured with the default settings i create a test case to reproduce it, executing this class on my 2 boxes return ---- GRAVE: JGRP000225: failed unmarshalling buffer into return value java.lang.InstantiationException: com.eg.util.comm.SimpleChat$EError at java.lang.Class.newInstance(Class.java:427) at org.jgroups.util.Util.readException(Util.java:899) at org.jgroups.util.Util.exceptionFromStream(Util.java:843) at org.jgroups.util.Util.exceptionFromStream(Util.java:831) at org.jgroups.util.Util.objectFromStream(Util.java:782) at org.jgroups.util.Util.objectFromStream(Util.java:742) at org.jgroups.blocks.RequestCorrelator.replyFromBuffer(RequestCorrelator.java:463) at org.jgroups.blocks.RequestCorrelator.handleResponse(RequestCorrelator.java:408) at org.jgroups.blocks.RequestCorrelator.dispatch(RequestCorrelator.java:363) at org.jgroups.blocks.RequestCorrelator.receiveMessageBatch(RequestCorrelator.java:326) at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:589) at org.jgroups.JChannel.up(JChannel.java:837) at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:896) at org.jgroups.stack.Protocol.up(Protocol.java:372) at org.jgroups.protocols.RSVP.up(RSVP.java:233) at org.jgroups.protocols.FRAG2.up(FRAG2.java:196) at org.jgroups.protocols.FlowControl.up(FlowControl.java:416) at org.jgroups.protocols.FlowControl.up(FlowControl.java:416) at org.jgroups.stack.Protocol.up(Protocol.java:372) at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:293) at org.jgroups.protocols.UNICAST3.deliverBatch(UNICAST3.java:1024) at org.jgroups.protocols.UNICAST3.removeAndDeliver(UNICAST3.java:833) at org.jgroups.protocols.UNICAST3.handleBatchFromSelf(UNICAST3.java:520) at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:435) at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:697) at org.jgroups.protocols.BARRIER.up(BARRIER.java:195) at org.jgroups.stack.Protocol.up(Protocol.java:372) at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:212) at org.jgroups.stack.Protocol.up(Protocol.java:372) at org.jgroups.stack.Protocol.up(Protocol.java:372) at org.jgroups.stack.Protocol.up(Protocol.java:372) at org.jgroups.protocols.TP.passBatchUp(TP.java:1274) at org.jgroups.util.MaxOneThreadPerSender$BatchHandlerLoop.passBatchUp(MaxOneThreadPerSender.java:284) at org.jgroups.util.SubmitToThreadPool$BatchHandler.run(SubmitToThreadPool.java:136) at org.jgroups.util.MaxOneThreadPerSender$BatchHandlerLoop.run(MaxOneThreadPerSender.java:273) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NoSuchMethodException: com.eg.util.comm.SimpleChat$EError.<init>() at java.lang.Class.getConstructor0(Class.java:3082) at java.lang.Class.newInstance(Class.java:412) ... 37 more -----