Library generation failed (d706482)

See [failed job](https://github.com/googleapis/google-cloudevents-java/actions/runs/18486234144)

Start with the linked failed GitHub Actions job for commit d706482 and inspect its logs to locate the library-generation step and reported failure. Trace that step in the repository and determine the smallest corrective change; done means the generation workflow completes successfully.

Rédigé par le modèle d'indexation à partir du texte de l'issue.