code: public Session resolveSession(String sessionToken, String userId) {
  		this.sessionToken = sessionToken;
  		this.userId = userId;
  		if (accessManager != null) {
  			this.session = accessManager.getSessionByToken(sessionToken);
  		}
  		return session;
  	}
docs: Tries to get a reference to the session identified by sessionToken
  
  @param sessionToken
  @param userId