The artifact org.apache.cxf.xjcplugins:cxf-xjc-bug986 is missing in EAP (and Wildfly too).

When you install JBossWS stack to the server by its mean, ie. mvn -Pwildfly1000 package -Dserver.home=/path, this artifact is installed under CXF impl module.
But there was a mistake in building process of Wildfly where this artifact was omitted.