fbjni-0.5.0-headers.jar responds in 404

[stiltet-gofore]

Issue description

When deploying our React Native 0.70.6 app to Android through Fastlane we're now getting failed builds with the following error;

* Where:
Build file 'node_modules/react-native-mmkv/android/build.gradle' line: 322

* What went wrong:
Execution failed for task ':react-native-mmkv:extractAARHeaders'.
> Could not resolve all files for configuration ':react-native-mmkv:extractHeaders'.
   > Could not find fbjni-0.5.0-headers.jar (com.facebook.fbjni:fbjni:0.5.0).
     Searched in the following locations:
         https://repo.maven.apache.org/maven2/com/facebook/fbjni/fbjni/0.5.0/fbjni-0.5.0-headers.jar

Code example

When looking through https://repo.maven.apache.org/maven2/com/facebook/fbjni/fbjni we see that the headers file is missing only for version 0.5.0.

https://repo.maven.apache.org/maven2/com/facebook/fbjni/fbjni/0.5.0/fbjni-0.5.0-headers.jar responds in 404.

System Info

Deployment from Linux CI env. using Fastlane.

[cortinico]

Thanks for the report. The -headers artifact is effectively missing, I'll look into it.

At the same time, the fact that mmkv had a dependency on fbjni with version "+" is a huge problem for you @stiltet-gofore and other users
https://github.com/mrousavy/react-native-mmkv/blob/8e9231c3588336fec18769ca2dcb23d4030eeaea/android/build.gradle#L157-L160

I can publish the -header artifact, and your build will be green, but your app may crash at runtime as FBJNI 0.5.0 has been built with NDK 25, which will most likely be higher than the NDK version you're using in the rest of your setup.

[stiltet-gofore]

Okay, thanks. I can report an issue in the React Native MMKV repo about this. What type of runtime crashes are you referring to @cortinico?

[andreaSimonePorceddu]

Same issue with react-native-quick-crypto

* Where:
Build file ‘*/node_modules/react-native-quick-crypto/android/build.gradle’ line: 337
* What went wrong:
Execution failed for task ‘:react-native-quick-crypto:extractAARHeaders’.
> Could not resolve all files for configuration ‘:react-native-quick-crypto:extractHeaders’.
   > Could not find fbjni-0.5.0-headers.jar (com.facebook.fbjni:fbjni:0.5.0).
     Searched in the following locations:
         https://repo.maven.apache.org/maven2/com/facebook/fbjni/fbjni/0.5.0/fbjni-0.5.0-headers.jar

[cortinico]

I can report an issue in the React Native MMKV repo about this. What type of runtime crashes are you referring to @cortinico?

You will have SIGSEGV or other native crashes caused by using a version of React Native which was compiled with NDK 23 (or earlier) and fbjni which was compiled with NDK 25.

Same issue with react-native-quick-crypto

@andreaSimonePorceddu

That library is also affected and you should report an issue for them.

I'll be publishing 0.5.1 in the next hours, which will "solve" this issues, but it won't prevent your apps from those runtime crashes. Also to clarify, your applications were already exposed to those crashes with fbjni 0.4.0 (and previous version) because of those libraries using a "+" dependency.

[CoSNaYe]

@cortinico deeply appreciate for your quick reply.

At the same time, the fact that mmkv had a dependency on fbjni with version "+" is a huge problem for you @stiltet-gofore and other users

About this, could you teach us how to fix the fbjni version to 0.4.0?
maybe at least we could patch the library temporarily

https://github.com/mrousavy/react-native-mmkv/blob/8e9231c3588336fec18769ca2dcb23d4030eeaea/android/build.gradle#L157-L160

  extractHeaders("com.facebook.fbjni:fbjni:+:headers")
  extractJNI("com.facebook.fbjni:fbjni:+")

[andreaSimonePorceddu]

@cortinico We already reported the issue here margelo/react-native-quick-crypto#185. But it seems strange that we have a breaking change that doesn't allow probably, thousand of apps to build, and it needs multiple libraries to release a new version to get it working again. I think we are missing backward-compatibility in some changes here.

[cortinico]

About this, could you teach us how to fix the fbjni version to 0.4.0?
maybe at least we could patch the library temporarily

You can use mmkv version 2.6.0+ as, from what I can see, does have a "+" dependency.

About this, could you teach us how to fix the fbjni version to 0.4.0?

You can use patch-package to unblock this build failure and edit those two lines to:

  extractHeaders("com.facebook.fbjni:fbjni:0.4.0:headers")
  extractJNI("com.facebook.fbjni:fbjni:0.4.0")

but again, 0.4.0 might not be the right version you need.

Or, given that 0.5.0 sounds a breaking change.
should this new version be 1.0.0?

This is not a breaking change. Also this library doens't follow semantic versioning as it's on a 0.x release schedule.

But it seems strange that we have a breaking change that doesn't allow probably, thousand of apps to build, and it needs multiple libraries to release a new version to get it working again. I think we are missing backward-compatibility in some changes here.

The core of the problem is that a library (mmkv, quick-crypto) is telling you to depend on "any" version of fbjni. So whenever you build, you'll get the latest version of fbjni available. As we update fbjni, we can offer compatibility with all the react native versions, just because mmkv or quick-crypto used a "+" dependency. It's up to that libraries to specify the version of their dependencies and don't use dynamic ranges.

[antoine-wbr]

Same with react-native-vision-camera.

[CoSNaYe]

thank you @cortinico

confirmed this worked for now 😅

diff --git a/node_modules/react-native-mmkv/android/build.gradle b/node_modules/react-native-mmkv/android/build.gradle
index 13eae76..d0dc001 100644
--- a/node_modules/react-native-mmkv/android/build.gradle
+++ b/node_modules/react-native-mmkv/android/build.gradle
@@ -155,9 +155,9 @@ dependencies {
   implementation 'com.facebook.react:react-native:+'
 
   //noinspection GradleDynamicVersion
-  extractHeaders("com.facebook.fbjni:fbjni:+:headers")
+  extractHeaders("com.facebook.fbjni:fbjni:0.4.0:headers")
   //noinspection GradleDynamicVersion
-  extractJNI("com.facebook.fbjni:fbjni:+")
+  extractJNI("com.facebook.fbjni:fbjni:0.4.0")
 
   if (!sourceBuild) {
     def buildType = "debug"

and about this:

@cortinico: You can use mmkv version 2.6.0+ as, from what I can see, does have a "+" dependency.

Because mmkv 2.6.0 has a breaking change:

Starting from 2.6.0., react-native-mmkv only works on react-native 0.71 and above.
If you use react-native 0.70 and below, you should use react-native-mmkv 2.5.1.

so we couldn't upgrade the library unfortunately

[zakus]

The more global issue with those libraries (mmkv, quick-crypto) is that they try to use one version of headers, but react-native may use different version.
In my case, for example, in ./node_modules/react-native/ReactAndroid/build.gradle react-native has

api("com.facebook.fbjni:fbjni-java-only:0.2.2")
extractHeaders("com.facebook.fbjni:fbjni:0.2.2:headers")
extractJNI("com.facebook.fbjni:fbjni:0.2.2")

But in ./node_modules/react-native-mmkv/android/build.gradle, the react-native-mmkv module. has:

extractHeaders("com.facebook.fbjni:fbjni:+:headers")
extractJNI("com.facebook.fbjni:fbjni:+")

i.e. the latest version, until today it was 0.4.0.

Hard-coding 0.4.0 version in the mmkv gradle file in this case would fix build, but indeed may lead to a crash, since headers do not correspond to the actual library used. The correct way is for mmkv to use exactly the same version as used by react-native.

But question is, how the proper fix for those libraries would look, how to get the current version of fbjni that is used by react-native, from the mmkv gradle script?

[cortinico]

Hard-coding 0.4.0 version in the mmkv gradle file in this case would fix build, but indeed may lead to a crash, since headers do not correspond to the actual library used. The correct way is for mmkv to use exactly the same version as used by react-native.

That's exactly what I was explaining in my previous comments @zakus thanks for stressing it again.

But question is, how the proper fix for those libraries would look, how to get the current version of fbjni that is used by react-native, from the mmkv gradle script?

There is no single fix for this, but it depends on a case by case basis:

• Starting from React Native 0.71, React Native publishes headers via Prefab. React Native is exposing an api dependency on fbjni so the library should not need to specify any versions of fbjni at all but it will use the right versions provided by React Native. This is what mmkv is doing from 2.6+
• For previous versions of mmkv, you would have to use the version of fbjni which React Native requires (and not the latest resolved by the "+" dependency). So patch-package here would work