container-common/src/main/java/com/streamsets/datacollector/http/LdapLoginModule.java
protected boolean credentialLogin(Object webCredential) throws LoginException
  {
    boolean credResult = getCurrentUser().checkCredential(webCredential);
    setAuthenticated(credResult);
    if (!credResult){
      LOG.warn("Authentication failed - Possibly the user password is wrong");
    }
    return isAuthenticated();
  }
protected boolean credentialLogin(Object webCredential) throws LoginException
  {
    boolean credResult = getCurrentUser().checkCredential(webCredential);
    setAuthenticated(credResult);
    if (!credResult){
      LOG.warn("Authentication failed - Possibly the user password is wrong");
    }
    return isAuthenticated();
  }
password supplied authentication check

@param webCredential
@return true if authenticated
@throws LoginException