Getting Unable to find unambiguous method when Calling an Enum function from JSF page ------------------------------------------------------------------------------------- Key: WFLY-11224 URL: https://issues.jboss.org/browse/WFLY-11224 Project: WildFly Issue Type: Bug Components: Web (Undertow) Reporter: Daniel Čihák Assignee: Stuart Douglas Priority: Major Labels: JSF, el, jsf22 Fix For: 15.0.0.Beta1, 15.0.0.Final On JBoss EAP 7.0.9, EAP 7.1.4 and EAP 7.2-beta the application is getting the error [i.] and the same code doesn't get the error running on JBoss EAP 6.4.21. In my research, I could identify that this error only happens on JBoss EAP 7.1.4 when: The class called from the EL has a superclass; The method called from the EL use an Enum as a parameter; Note: If we remove the superclass or change the parameter to "String" for example, the error doesn't appear. For more information see the JBEAP issue JBEAP-15571.