Vendor-published Language migration
Stripe migrates 10,000 lines of Scala to Java in four days
A Stripe team used Claude models to migrate 10,000 lines of Scala to Java in four days, a project estimated at ten engineering weeks by hand. The migration unblocked a newer JDK version.
The numbers (as reported)
| Lines migrated | 10,000 |
|---|---|
| Actual duration | 4 days |
| Manual estimate | 10 engineering weeks |
Facts
- Company / subject
- Stripe
- Tools
- Claude
- Codebase
- brownfield
- Work type
- Language migration
- Stack
- Scala, Java
- Published
- —
- Last checked
- 2026-10-17
Caveats
Vendor-published. No cost or team-size figure given.