After updating to 2.103

Plugins involved:
rabbitmq-build-trigger 2.5 true
rabbitmq-consumer 2.7 true

Message at the Manage Jenkins link:

org.jenkinsci.plugins.rabbitmqconsumer.GlobalRabbitmqConfiguration

RabbitMQ consumer

ConversionException: Refusing to unmarshal urlValidator for security reasons; see https://jenkins.io/redirect/class-filter/ ---- Debugging information ---- class : org.apache.commons.validator.routines.UrlValidator required-type : org.apache.commons.validator.routines.UrlValidator converter-type : hudson.util.XStream2$BlacklistedTypesConverter path : /org.jenkinsci.plugins.rabbitmqconsumer.GlobalRabbitmqConfiguration/urlValidator line number : 3 -------------------------------