alibaba/nacos · error · IllegalArgumentException

Invalid {fieldName}: {value}

Error message

Invalid {fieldName}: {value}

What it means

Error "Invalid {fieldName}: {value}" thrown in alibaba/nacos.

Source

Thrown at api/src/main/java/com/alibaba/nacos/api/ai/utils/RadModelValidator.java:534

    
    private static void validateProvider(AgentProvider provider) {
        if (provider == null) {
            return;
        }
        validateLength(provider.getName(), 1, 128, "provider.name");
        if (provider.getUrl() != null) {
            validateAbsoluteUri(provider.getUrl(), "provider.url");
        }
    }
    
    private static void validateAbsoluteUri(String value, String fieldName) {
        validateLength(value, 1, 2048, fieldName);
        try {
            if (!new URI(value).isAbsolute()) {
                throw invalid(fieldName + " must be an absolute URI");
            }
        } catch (URISyntaxException e) {
            throw new IllegalArgumentException("Invalid " + fieldName + ": " + value, e);
        }
    }
    
    private static void validateOptionalLength(String value, int maxLength, String fieldName) {
        if (value != null && codePointLength(value) > maxLength) {
            throw invalid(fieldName + " exceeds " + maxLength + " characters");
        }
    }
    
    private static void validateLength(String value, int minLength, int maxLength,
        String fieldName) {
        if (value == null) {
            throw invalid(fieldName + " is required");
        }
        int length = codePointLength(value);
        if (length < minLength || length > maxLength) {
            throw invalid(fieldName + " length must be between " + minLength + " and "
                + maxLength);

View on GitHub (pinned to 9b989acdf1)

Solutions

1. Correct the invalid value for RAD model field validation to match the expected format or allowed set, then retry.

When it happens

Trigger: Thrown at api/src/main/java/com/alibaba/nacos/api/ai/utils/RadModelValidator.java:534 when the library encounters an invalid state.

Common situations: RAD model validation rejected a field value outside its allowed range or pattern.

AI-assisted analysis of alibaba/nacos@9b989acdf1 (2026-08-14). Data as JSON: /api/errors/81215a8807c4e508. Report an issue: GitHub.