Counter - registry.counter(metadata)- IllegalArgumentException -------------------------------------------------------------- Key: WFLY-11475 URL: https://issues.jboss.org/browse/WFLY-11475 Project: WildFly Issue Type: Bug Components: MP Metrics Affects Versions: 15.0.0.Final Reporter: Rostislav Svoboda Priority: Critical Counter - registry.counter(metadata) returns IllegalArgumentException on second invocation of the endpoint. The same app works fine on Open Liberty. JavaDoc for counter(Metadata metadata) says @return a new or pre-existing @link Counter. Second invocation should return the pre-existing counter. https://github.com/smallrye/smallrye-metrics/issues/43