v0.9.0-alpha

CoreJ2 v0.9.0-alpha

Summary

CoreJ2 reaches its first publicly documented playable commercial milestone: classic Java ME (J2ME) games run on a physical iPhone with an embedded OpenJDK Mobile runtime and FreeJ2ME, presented through a native SwiftUI app.

Originally developed as JavaOne.

Highlights

• Embedded OpenJDK Mobile running on iPhone
• Commercial J2ME / MIDlet support via FreeJ2ME
• Miami Nights: Singles in the City fully playable in a manual device session (launch, menus, gameplay, save, load, dialogs; no crashes observed)
• LCD rendering, touch input, virtual keypad, RMS save/load, and multiple launch cycles validated
• Silent audio compatibility path available

Current limitation

• Native MMAPI audio backend is not complete — titles that expect real sound playback remain in progress
• Compatibility corpus expansion continues (Epic 12)

Media

Device screenshots, optimized GIFs, and MP4 recordings are published under docs/assets/ and on the documentation site.

Links

• Documentation: https://flakito-loko.github.io/CoreJ2/
• Compatibility: https://flakito-loko.github.io/CoreJ2/compatibility/
• Roadmap: https://flakito-loko.github.io/CoreJ2/roadmap/
• Source: https://github.com/flakito-loko/CoreJ2

Miami Nights: Singles in the City

Status

✅ Embedded JVM

✅ FreeJ2ME

✅ Commercial MIDlets

✅ Gameplay

✅ Save/Load (RMS)

🟡 Audio (in progress)

🟡 Compatibility expansion