Java csharp stj could not be converted system int64 user email: Runbook for API gateway

Neighbor guide around active winner intent: Java csharp stj could not be converted system int64 user email for API gateway. Checklist, runbook and validation steps for no-upload workflows. Updated 2026.

Source winner page Topic hub Impression seed hub Runtime cluster Intent cluster

Neighbor execution checklist

  1. Reproduce the exact failure mode from source winner page.
  2. Apply runtime-specific handling for Java.
  3. Validate for API gateway constraints and rollout path.
  4. Link decision into existing winner/comparison pages.

Validation tools

Json Validator Json Repair Json Formatter