Axon 2.4.5 AbstractMessageHandler#matches(Message) causing AggregateIdentifierNotInitializedException

[Master Mind]

Hi All,

I am trying to load a an AggregateRoot using the respository (I am using a MongoEventStore) but I get AggregateIdentifierNotInitializedException thrown: the problem occurs when the AbstractMessageHandler#matches(Message) is called more exactly in line 2 :

1.Assert.notNull(message, "Event may not be null");
2.if (payloadType != null && !payloadType.isAssignableFrom(message.getPayloadType())) {
3.    return false;
4.}
5. for (ParameterResolver parameterResolver : parameterValueResolvers) {
6.    if (!parameterResolver.matches(message)) {
7.        return false;
8.    }
9.}
10.return true;

message.getPayloadType() returns: class com.acme.cqrs.common.PostCreatedEvent 
but with a different classLoader than the one returned payloadType which returns also a :class com.acme.cqrs.common.PostDownvotedEvent

So the aggregate is not intialized because no eventHandler methods is found in the Aggregate class and so the AggregateIdentifierNotInitializedException
is thrown in a later stage.
Any help will be appreciated.

[Allard Buijze]

What kind of environment do you run in? If the same class is loaded by two different classloaders, they are different form the jvm. So one instance from the classloader A is not assignable to the type loaded by classloader B.

Cheers,

Allard

Op di 27 sep. 2016 om 21:33 schreef Master Mind <devca...@gmail.com>

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[Peter Höffling]

Hi,

had the same situation.

In my cas it was the Rleoad classloader from spring-boot devtools.

May caused by: http://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-devtools.html#using-boot-devtools-known-restart-limitations