Cannot use EclipseLink as JPA provider and MOXy as JAX-RS provider ------------------------------------------------------------------ Key: WFLY-6429 URL: https://issues.jboss.org/browse/WFLY-6429 Project: WildFly Issue Type: Bug Affects Versions: 10.0.0.Final Reporter: Florian Wunderlich Assignee: Jason Greene Priority: Minor Labels: eclipselink, jaxb, moxy When using EclipseLink-2.6.0 as JPA provider (set up in modules/system/layers/base/org/eclipse/persistence/main), then MOXy cannot be used as JSON provider for JAX-RS. Note that the eclipselink-2.6.0.jar file contains MOXy, which might be a possible cause of this problem. As it currently is, MOXy CANNOT be used as JAX-RS JSON provider when using EclipseLink as JPA provider. You can use MOXy when you create everything yourself, but Resteasy cannot create the MOXy Marshaller/Unmarshaller.