User Service

import org.alfresco.model.ContentModel;
import org.alfresco.service.ServiceRegistry;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.security.AuthenticationService;
import org.alfresco.service.cmr.security.PermissionService;
import org.alfresco.service.cmr.security.PersonService;
import org.alfresco.util.ApplicationContextHelper;
import org.springframework.context.ApplicationContext;

import java.util.HashMap;
import java.util.Map;

public class UserService {

    private static ServiceRegistry serviceRegistry;

    private static AuthenticationService authService;

    private static PersonService personService;

    private static PermissionService permissionService;

    public static void init(ApplicationContext ctx) {
        ctx = ApplicationContextHelper.getApplicationContext();
        if(ctx!=null && ctx.containsBean(ServiceRegistry.SERVICE_REGISTRY)){
            serviceRegistry = (ServiceRegistry)ctx.getBean(ServiceRegistry.SERVICE_REGISTRY);
            if(serviceRegistry!=null){
                authService = serviceRegistry.getAuthenticationService();
            }
            if(serviceRegistry!=null){
                personService = serviceRegistry.getPersonService();
            }
        }
    }

    private void getAuthentication(String userName, String passwd){
        NodeRef person = personService.getPerson(authService.getCurrentUserName());
    }

    private void createUser(String userName, String passwd){

        if(!personService.personExists(userName)){
            Map user = new HashMap();
            user.put(ContentModel.PROP_USERNAME, userName);
            user.put(ContentModel.PROP_FIRSTNAME, "firstName");
            user.put(ContentModel.PROP_LASTNAME, "lastName");
            user.put(ContentModel.PROP_EMAIL, userName+"@example.com");
            user.put(ContentModel.PROP_TITLE, "jobTitle");

            personService.createPerson(user);

        }

    }

    public static void main(String[] args) {
        String connectionName = "http://127.0.0.1:8080/alfresco/";
        String userName = "admin";
        String passwd = "rockstar";

        if (serviceRegistry!=null) {
            System.out.println("User Created!");
            if (serviceRegistry != null) {
                System.out.println("Folder Created with Name: \t" + personService.getPerson(userName));
            } else {
                System.out.println("Nope!");
            }

        }
    }
}