# jasonross/Nuwa

Nuwa, pure java implementation, can hotfix your android application.

Repository: https://github.com/jasonross/Nuwa
Canonical: https://ross.abutalabs.com/products/nuwa
Language: Java
License Family: other
Last push: 2022-07-23T02:12:09+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3948, "days_push": 1503, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2943, forks 573 (observed 2026-08-28T04:07:31.118924+00:00)

## What it is
Nuwa is a pure-Java hotfix library and Gradle plugin for Android that lets developers patch bugs in a shipped app without publishing a new APK. It works by injecting hook code into classes at build time and loading a patch.jar at runtime, supporting both Dalvik and ART runtimes.

## Use cases
- hotfix a bug in a released android app without publishing a new apk
- patch android application classes at runtime
- apply runtime code patches to an android app
- fix production crashes quickly on android
- generate and load patch jars in an android build

## When to choose
- you need to repair a released Android app without going through the app store
- your project uses Dalvik or ART, ProGuard, or multidex and needs hotpatch support
- you want a pure-Java hotfix solution integrated via Gradle

## When to avoid
- you need an actively maintained solution - the project has had no releases since 2022 and no license
- you target modern Android versions where class-injection hotfix approaches may be restricted
- you need patch management/distribution features, which were never completed

## Facets
- artifact type: library
- maturity: maintenance
- function: build-tool, developer-tools
- domain: mobile-development, developer-tools
- platform: jvm
- tags: hotfix, hotpatch, android, gradle-plugin, class-injection, dalvik, art, gradle

## Member repositories
- jasonross/Nuwa (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:31.118924+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:32:55.261927+00:00, confidence not recorded.
  - readme: https://github.com/jasonross/Nuwa (fetched 2026-08-28T04:07:31.118924+00:00, sha c75e12666111)
- Data as of 2026-08-30T08:39:29.467469+00:00.