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https://issues.apache.org/jira/browse/CAMEL-24825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18118367#comment-18118367
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Guillaume Nodet commented on CAMEL-24825:
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This issue is being investigated by a coding agent (on behalf of gnodet).
Code analysis confirms the bug is real: when the OpenAPI spec has no servers
entry (or an empty servers list), the base path resolution in
camel-rest-openapi fails with a JDK-level "URI is not absolute" exception. The
fix involves adding a null/empty guard for the servers list at the
specification-load or consumer-creation boundary, similar to the approach in
closed PR #26755 (which addressed a related sub-issue but was not merged).
_Note: This comment was generated by an AI coding agent and requires manual
verification._
> REST DSL from an OpenAPI contract with no servers entry fails to start with
> "URI is not absolute"
> -------------------------------------------------------------------------------------------------
>
> Key: CAMEL-24825
> URL: https://issues.apache.org/jira/browse/CAMEL-24825
> Project: Camel
> Issue Type: Bug
> Components: camel-rest-openapi
> Reporter: Claus Ibsen
> Assignee: Guillaume Nodet
> Priority: Major
>
> With a contract whose servers entry is {"url": "http://localhost:8080"} (no
> path), Camel 4.22.0 logs the operations in the HTTP endpoints summary
> (/stock, /stock/{sku}, ...) but every request to them answers 404 with the
> platform-http "Resource not found" page. With {"url":
> "http://localhost:8080/api"} the same contract works. The 4.23.0-SNAPSHOT of
> 2026-09-18 serves the path-less form correctly.
> Found while writing the openapi-server example for CAMEL-24808 (the example
> now uses /api, see camel-jbang-examples issue 86). Without a servers entry at
> all, 4.22.0 fails to start with "URI is not absolute".
> Two things to do: find the change between 4.22.0 and main that fixed the
> path-less form and backport it to 4.22.x if it is small; and make a missing
> servers entry a clear error (or default to "/") instead of "URI is not
> absolute".
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