sso/src/main/java/com/streamsets/lib/security/http/AbstractSSOAuthenticator.java
protected Authentication returnUnauthorized(
      HttpServletRequest httpReq, HttpServletResponse httpRes, String principalId, String logMessageTemplate
  ) throws ServerAuthException {
    return returnUnauthorized(httpReq, httpRes, UNAUTHORIZED_JSON, principalId, logMessageTemplate);
  }
protected Authentication returnUnauthorized(
      HttpServletRequest httpReq, HttpServletResponse httpRes, String principalId, String logMessageTemplate
  ) throws ServerAuthException {
    return returnUnauthorized(httpReq, httpRes, UNAUTHORIZED_JSON, principalId, logMessageTemplate);
  }
/*
Terminates the request with an HTTP Unauthorized response