public static OAuthBearerValidationResult newFailure(String failureDescription) {
        return newFailure(failureDescription, null, null);
    }
Return a new validation failure instance

@param failureDescription
           optional description of the failure
@return a new validation failure instance
clients/src/main/java/org/apache/kafka/common/security/oauthbearer/internals/unsecured/OAuthBearerValidationResult.java