code: public void createUser(final String userId, final String displayName,
  			final String profilePicturePath) {
  		final Node user = NeoUtils.createUserNode(userId);
  		user.setProperty(Properties.User.DISPLAY_NAME, displayName);
  		user.setProperty(Properties.User.PROFILE_PICTURE_PATH,
  				profilePicturePath);
  	}
docs: create a new user
  
  @param userId
  user identifier
  @param displayName
  user display name
  @param profilePicturePath
  path to the profile picture of the user