What Does This Do

Release the captured parent continuation when Apache async HTTP request submission throws synchronously, before a callback takes ownership.

Previously, the exceptional exit finished the client span but left the parent continuation unresolved. Normal completion, failure, and cancellation callbacks remain unchanged.

flowchart LR
    A[Capture parent continuation] --> B[Submit request]
    B -->|Accepted| C[Callback resolves continuation]
    B -->|Throws synchronously| D[Finish client span]
    D --> E[Release parent continuation — added]
    style E fill:#d4edda,stroke:#28a745

Motivation

Smoke-test continuation diagnostics prompted this investigation. A focused regression confirmed that submitting through an unstarted or closed Apache 4.0 client leaks the captured continuation.

Additional Notes

Contributor Checklist

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Jira ticket: [PROJ-IDENT]