Axon complaining on com.thoughtworks.xstream.converters.ConversionException: Failed calling method

Question

I'm trying to use mysql with JPA for axon event store and I am getting this issue,It was working for me with InMemoryEventStorageEngine.

I have tried it with axon server and InMemoryEventStorageEngine, its working.

Any help is really appreciated thanks

com.thoughtworks.xstream.converters.ConversionException: Failed calling method ---- Debugging information ---- message: Failed calling method cause-exception: com.thoughtworks.xstream.converters.ConversionException cause-message: Failed calling method

method: java.util.concurrent.CopyOnWriteArrayList.writeObject()

at com.thoughtworks.xstream.core.util.SerializationMembers.callWriteObject(SerializationMembers.java:158)
at com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:257)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:90)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshallField(AbstractReflectionConverter.java:274)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:250)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.<init>(AbstractReflectionConverter.java:213)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:144)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:90)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshallField(AbstractReflectionConverter.java:274)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:250)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.<init>(AbstractReflectionConverter.java:213)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:144)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:90)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshallField(AbstractReflectionConverter.java:274)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:250)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.<init>(AbstractReflectionConverter.java:213)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:144)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:90)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:1319)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:1308)
at com.thoughtworks.xstream.XStream.toXML(XStream.java:1281)
at org.axonframework.serialization.xml.XStreamSerializer.doSerialize(XStreamSerializer.java:86)
at org.axonframework.serialization.AbstractXStreamSerializer.serialize(AbstractXStreamSerializer.java:98)
at org.axonframework.modelling.saga.repository.jpa.AbstractSagaEntry.<init>(AbstractSagaEntry.java:58)
at org.axonframework.modelling.saga.repository.jpa.SagaEntry.<init>(SagaEntry.java:41)
at org.axonframework.modelling.saga.repository.jpa.JpaSagaStore.createSagaEntry(JpaSagaStore.java:330)
at org.axonframework.modelling.saga.repository.jpa.JpaSagaStore.insertSaga(JpaSagaStore.java:298)
at org.axonframework.modelling.saga.repository.AnnotatedSagaRepository.storeSaga(AnnotatedSagaRepository.java:217)
at org.axonframework.modelling.saga.repository.AnnotatedSagaRepository.lambda$doCreateInstance$3(AnnotatedSagaRepository.java:139)
at org.axonframework.messaging.unitofwork.MessageProcessingContext.notifyHandlers(MessageProcessingContext.java:71)
at org.axonframework.messaging.unitofwork.BatchingUnitOfWork.lambda$notifyHandlers$2(BatchingUnitOfWork.java:155)
at java.util.ArrayList$Itr.forEachRemaining(ArrayList.java:899)
at org.axonframework.messaging.unitofwork.BatchingUnitOfWork.notifyHandlers(BatchingUnitOfWork.java:155)
at org.axonframework.messaging.unitofwork.AbstractUnitOfWork.changePhase(AbstractUnitOfWork.java:222)
at org.axonframework.messaging.unitofwork.AbstractUnitOfWork.commitAsRoot(AbstractUnitOfWork.java:83)
at org.axonframework.messaging.unitofwork.AbstractUnitOfWork.commit(AbstractUnitOfWork.java:71)
at org.axonframework.messaging.unitofwork.BatchingUnitOfWork.executeWithResult(BatchingUnitOfWork.java:111)
at org.axonframework.eventhandling.AbstractEventProcessor.processInUnitOfWork(AbstractEventProcessor.java:136)
at org.axonframework.eventhandling.TrackingEventProcessor.processBatch(TrackingEventProcessor.java:259)
at org.axonframework.eventhandling.TrackingEventProcessor.processingLoop(TrackingEventProcessor.java:181)
at org.axonframework.eventhandling.TrackingEventProcessor$TrackingSegmentWorker.run(TrackingEventProcessor.java:661)
at org.axonframework.eventhandling.TrackingEventProcessor$WorkerLauncher.run(TrackingEventProcessor.java:771)
at org.axonframework.eventhandling.TrackingEventProcessor$CountingRunnable.run(TrackingEventProcessor.java:588)
at java.lang.Thread.run(Thread.java:748)

Answer 1

@dawit Do you get the solution or work around to solve it

Answer 2

As @Steven mentioned serialization works only when you try to store the events in DB,and you can easily configure your event serialization in your configuration application properties, I was able to solve it using this configurations

axon.serializer.general = jackson
axon.serializer.events = jackson
axon.serializer.messages =Jackson