Hey thorben, I tried this before but I see my mistake now.
I used the system module which is 2.4.1
(modules > system > layers > base > com > fasterxml > core > jackson-core > main > xxx-2.4.1)
While I indeed had to use version 2.5.3 from another location
(modules > com > fasterxml > core > jackson-core > 2.5.3 > xxx-2.5.3)
Anyway, thank you very much. It all works now!
UPDATE: It looks as if I jumped the gun. I did not check the correct use case from where the exception was thrown and it still occurs.
In pom.xml I use version 2.5.3 and set the dependency scope to provided as before but no luck there.
I also tried using a jboss-deployment-structure.xml with following content;
<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
<deployment>
<dependencies>
<module name="com.fasterxml.jackson.core.jackson-databind" slot="2.5.3" />
</dependencies>
</deployment>
</jboss-deployment-structure>
Another thing that confuses me even more is the repackaged jackson libs in camunda-spin-dataformat-all;