The error when installing JSF 1.2 as a module following instructions from https://access.redhat.com/solutions/2773121 using weld-core-jsf-2.4.7 is:

java.lang.NoClassDefFoundError: Failed to link org/jboss/as/jsf/injection/weld/WeldApplication (Module "org.jboss.as.jsf-injection:mojarra-1.2" from local module loader @1b68b9a4 (finder: local module finder @4f9a3314 (roots: boss-eap-7.1\modules,jboss-eap-7.1\modules\system\layers\base\.overlays\layer-base-jboss-eap-7.1.3.CP,jboss-eap-7.1\modules\system\layers\base))): javax/faces/application/ApplicationWrapper

Adding EAP 7.0 weld libs also arises this problem in some installations using weld-core-jsf-2.3.3.Final:
java.lang.NoSuchMethodError: javax.faces.context.FacesContext.getAttributes()Ljava/util/Map;
at org.jboss.weld.jsf.ConversationAwareViewHandler.getActionURL(ConversationAwareViewHandler.java:103) [weld-core-jsf-2.3.3.Final-redhat-1.jar:2.3.3.Final-redhat-1]

The FacesContext.getAttributes does not exist in JSF 1.2