tasks-jsf quickstarts now can throw a WELD-000714 warning:
WARN [org.jboss.weld.Servlet] (default task-1) WELD-000714: HttpContextLifecycle guard leak detected. The Servlet container is not fully compliant. The value was 1
Based on https://issues.jboss.org/browse/WFLY-5310 and https://access.redhat.com/solutions/3269201 responses the warning could be added to tasks-jsf Server Log: Expected Warnings and Errors section.