Dawid Świnoga

Hi @marcingrzejszczak I added one field to your sample kafka contract. ```Contract.make { label("trigger") input { triggeredBy("trigger()") } outputMessage { sentTo("topic1") body([ foo: 'example', bar: 'example2' ]) } } ```...

I found the root cause of the error. StubRunnerExecutor.java ``` private void sendMessage(Contract groovyDsl) { OutputMessage outputMessage = groovyDsl.getOutputMessage(); DslProperty body = outputMessage.getBody(); Headers headers = outputMessage.getHeaders(); // TODO: Json...