https://github.com/jenkinsci/kubernetes-pipeline-plugin/blob/6e59f0d8d4417fe69b2153c85cc676dfece95da3/devops-steps/src/main/java/io/fabric8/kubernetes/pipeline/devops/elasticsearch/DTOSupport.java#L24 uses PropertyNamingStrategy.LowerCaseWithUnderscoresStrategy which was removed in Jackson 2.16 in https://github.com/FasterXML/jackson-databind/pull/4162