conductor-oss/conductor · error · RuntimeException

Failed to serialize request body

Error message

Failed to serialize request body

What it means

Error "Failed to serialize request body" thrown in conductor-oss/conductor.

Source

Thrown at agentspan/src/main/java/org/conductoross/conductor/ai/agentspan/runtime/service/AzureFoundryAgentClient.java:380

    private String resolveAssistantId(ConductorAgentStartRequest request) {
        String id = rawConfig(request, "assistantId");
        if (StringUtils.isBlank(id)) {
            id = rawConfig(request, "agentId");
        }
        if (StringUtils.isBlank(id)) {
            throw new IllegalArgumentException(
                    "rawConfig.assistantId is required for Azure Foundry agent requests");
        }
        return id;
    }

    private JsonNode post(String url, ObjectNode body, String bearerToken, String apiVersion) {
        byte[] bytes;
        try {
            bytes = MAPPER.writeValueAsBytes(body);
        } catch (IOException e) {
            throw new RuntimeException("Failed to serialize request body", e);
        }
        String fullUrl = url.contains("?") ? url : url + "?api-version=" + apiVersion;
        Request request =
                new Request.Builder()
                        .url(fullUrl)
                        .post(RequestBody.create(bytes, JSON))
                        .header("Authorization", "Bearer " + bearerToken)
                        .build();
        return execute(request, url);
    }

    private JsonNode get(String url, String bearerToken, String apiVersion) {
        String fullUrl = url.contains("?") ? url : url + "?api-version=" + apiVersion;
        Request request =
                new Request.Builder()
                        .url(fullUrl)
                        .get()
                        .header("Authorization", "Bearer " + bearerToken)

View on GitHub (pinned to cf7c3e4a8a)

Solutions

1. Check the request payload for non-serializable values (e.g. raw streams or circular objects) before sending to Azure Foundry.

When it happens

Trigger: Thrown at agentspan/src/main/java/org/conductoross/conductor/ai/agentspan/runtime/service/AzureFoundryAgentClient.java:380 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of conductor-oss/conductor@cf7c3e4a8a (2026-08-14). Data as JSON: /api/errors/232043ac1f8c3459. Report an issue: GitHub.