Importing maven project (in my case "servlet-security" from EAP quickstarts) via easymport has wrong context root (right click on project->Properties->Web Project Settings) configured.
Name of project is servlet-security, but web context root is jboss-servlet-security
This results into 404 when this project gets deployed to server. IDE opens url http://localhost:8080/jboss-servlet-security, but correct url is http://localhost:8080/servlet-security.

Note, that this does not happen when importing this project as existing maven project (not using easymport).