There are a number of artifacts with the groupId "org.wildfly.clustering" published to the "JBoss Releases" repository within the past week that have not sync'ed to maven central.
e.g.
https://repository.jboss.org/nexus/service/local/repositories/releases/content/org/wildfly/clustering/wildfly-clustering-session-infinispan-embedded/
vs.
https://repo.maven.apache.org/maven2/org/wildfly/clustering/wildfly-clustering-session-infinispan-embedded/