How do I get user info from userID

[vsangal]

I have been researching and found out that this is the best way to current usr info from activiti DB. However, it comes out to be null.

This is my code..

First, I get userID

List<IdentityLink> identityLink = processEngine.getRuntimeService().getIdentityLinksForProcessInstance(processID);

Iterating through this I get userID

if (identityLink != null){

                    for (IdentityLink link : identityLink){
                        userID = link.getUserId();
                        logger.info("getProjectID:  userID ==== is " + userID);
                    }
                }else{
                    logger.info("getProjectID: userID is NULL ");
                }

Now I try to get userinfo, this is null.. Can someone help?

User user = processEngine.getIdentityService().createUserQuery().userId(userID).singleResult();

if (user !=null){    
                    logger.info("FirstName ======= " + user.getFirstName() );

                    logger.info("LastName ======= " + user.getLastName() );

                    logger.info("Email ======= " + user.getEmail() );

                    logger.info("Password  ======= " + user.getPassword() );
                }else{
                    logger.info("user  is ......................... NULL ");
                }