alibaba/spring-ai-alibaba · error · IllegalArgumentException
Unsupported HTTP method: + method
Error message
Unsupported HTTP method: + method
What it means
Default branch of buildApiNodeRequest in HttpClientManager: the requested HTTP verb was not among the supported cases (GET/POST/PUT/DELETE/PATCH), so no HttpRequestBase could be constructed. Indicates a programming/configuration error, not a runtime condition.
Solutions
- Restrict method values to GET, POST, PUT, DELETE, PATCH
- Fix the mapping that derives the method from plugin/tool configuration
- Validate the method string before invoking the HTTP client
Defensive patterns
Strategy: validation
When it happens
Trigger: Thrown at spring-ai-alibaba-admin/spring-ai-alibaba-admin-server-core/src/main/java/com/alibaba/cloud/ai/studio/core/base/manager/HttpClientManager.java:591 when the library encounters an invalid state.
Common situations: See trigger scenarios.
AI-assisted analysis of alibaba/spring-ai-alibaba@f82da0b50f (2026-09-09).
Data as JSON: /api/errors/2b56a1043f025886.
Report an issue: GitHub.
Appendix: source
Thrown at spring-ai-alibaba-admin/spring-ai-alibaba-admin-server-core/src/main/java/com/alibaba/cloud/ai/studio/core/base/manager/HttpClientManager.java:591
request = putRequest;
break;
case DELETE:
if (body != null && form != null && !form.isEmpty()) {
HttpDeleteWithBody deleteRequest = new HttpDeleteWithBody(encodedUrl);
setEntityByType(deleteRequest, MapUtils.getString(body, "type"), form);
request = deleteRequest;
}
else {
request = new HttpDelete(encodedUrl);
}
break;
case PATCH:
HttpPatch patchRequest = new HttpPatch(encodedUrl);
setEntityByType(patchRequest, MapUtils.getString(body, "type"), form);
request = patchRequest;
break;
default:
throw new IllegalArgumentException("Unsupported HTTP method: " + method);
}
addHeaderForAPINode(request, header);
// Set timeout configuration
if (timeoutConfig != null && timeoutConfig.getRead() != null) {
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(timeoutConfig.getRead() * 1000)
.setConnectionRequestTimeout(timeoutConfig.getRead() * 1000)
.setSocketTimeout(timeoutConfig.getRead() * 1000)
.build();
request.setConfig(requestConfig);
}
return request;
}
/**
* Builds complete URL with encoded content
*/
private String buildUrl(String url, String encodedContent) {View on GitHub (pinned to f82da0b50f)