assume that all the user import is for alfresco and share thus the common login should work.
I have changed the web.xml too to include the security filter in alfresco/WEB-INF/web.xml similar to what has been added in share/WEB-INF/web.xml <filter> <description>OpenAM Tomcat Policy Agent Filter</description> <filter-name>OpenAMAgent</filter-name> <filter-class>com.sun.identity.agents.filter.AmAgentFilter</filter-class> </filter>