The files jboss-web_11_0.xsd and jboss-web_12_0.xsd redefines security-domainType that has already been defined in jboss-common_7_0.xsd. It might cause validation errors.

If a new attribute is added to security-domainType in WildFly 11, we should have jboss-common_11_0.xsd, shouldn't we?