Spring boot messaging Failed to serialize object caused by jaeger #320

I spent now 2 days trying to figure out how to solve this but I am out of luck..

We added java-spring-cloud-starter version 0.5.9 to our spring boot application v2.1.3

We have some DomainEvents that we need to serialize, we use MessageChannel of spring boot framework.
which creates a GenericMessage
https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/messaging/Message.html

Here is a snippet from our implementation
https://pastebin.com/n1ygDxhW

What I found out is that jaeger is adding something to this GenericMessage (see the stack trace below)
I don't know how to solve this issue and for me it looks like a bug...can anyone help me out? I could find anything in the interwebs.

org.springframework.messaging.MessageDeliveryException: failed to send Message to channel 'userEventGatewayInputChannel'; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to serialize object using JacksonMessageSerialization; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class java.lang.Object and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: org.springframework.messaging.support.GenericMessage["headers"]-> java.util.HashMap["io.opentracing.contrib.spring.integration.messaging.OpenTracingChannelInterceptor.SCOPE"]-> io.opentracing.util.ThreadLocalScope["wrapped"]->io.jaegertracing.internal.JaegerSpan["tracer"]->io.jaegertracing.internal.JaegerTracer["reporter"]->io.jaegertracing.internal.reporters.CompositeReporter["reporters"]->java.util.ArrayList[0]->io.jaegertracing.internal.reporters.RemoteReporter["sender"]->io.jaegertracing.thrift.internal.senders.UdpSender["agentClient"]->io.jaegertracing.agent.thrift.Agent$Client["iprot_"]->org.apache.thrift.protocol.TCompactProtocol["trans_"]->io.jaegertracing.thrift.internal.reporters.protocols.ThriftUdpTransport["socket"]->java.net.DatagramSocket["closeLock"])