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Tested on Android 12 Emulator with custom executor, but cannot repro this issue.

1. Second crash in the description is from a real device. Experienced it myself on two different Xiaomi phones, plus lots of crashes from users in the Google Play console.

2. Dynamic features are not used in the application.

As a wild guess, I have downgraded build tools from 31.0.0 to 30.0.3, compileSdk from 31 to 30, and moved all work with Language ID to the service in a separate process (just to be sure that crash can kill secondary process instead of main). This combination is in beta for 2 days by now and I don't see any SIGSEGV crashes.

Hmm, I feel the crash might be something related to separate/secondary process.

I also changed compileSdk and targetSDK to 31 but still cannot repro this issue.

On the contrary, there was no separate process before, when crashes started.

In the new build (with the aforementioned changes) I can see SIGSEGV crash, but only one instead of dozens and it has a bit different backtrace:

signal 11 (SIGSEGV), code 1 (SEGV_MAPERR)
liblanguage_id_jni.so (offset 0x11e000)

backtrace:
  #00  pc 000000000003c7c0  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 000000000003b960  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 000000000003bb48  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 000000000003bafc  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 0000000000036c98  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 0000000000032714  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 0000000000031cac  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/split_config.arm64_v8a.apk!lib/arm64-v8a/liblanguage_id_jni.so (offset 0x11e000)
  #00  pc 0000000000057438  /data/app/azagroup.reedy-mF7zTu2bv_ELlbFArwNgqA==/oat/arm64/base.odex (offset 0x57000)

FYI, ML Kit launched a new language ID SDK in the latest release, which uses a new language ID model. https://developers.google.com/ml-kit/release-notes#august_11_2021

Could you try the new SDK version(17.0.0) to check if you can still repro this native crash? Thanks!

Thank you, I'll try it and check.

Hello. I have similar experience.

• I'm using mlkit-language 16.1.1
• I didnot meet this error until using AGP 4.2
• I can get this error since using AGP 7.0
• This error raised on Release build only(minimized by R8)
• This error raised without obfuscation.

Also I found there is a post which presents same issue on stackoverflow.

https://stackoverflow.com/questions/68832304/mlkit-translate-sdk-crashes-in-release-build

I created reproducible project.

$ git clone https://github.com/ganadist/VersionCodeDemo -b mlkit_agp7 mlkit_agp7
$ cd mlkit_agp7
$ ./gradlew :app:pPRUA
$ adb install app/build/outputs/universal_apk/productionRelease/app-production-release-universal.apk
$ adb shell am start -n com.example.myapplication/.MainActivity

$ adb logcat -b crash -d
10-19 19:41:49.844 17810 17810 F libc    : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x7acf9d733c in tid 17810 (e.myapplication), pid 17810 (e.myapplication)
10-19 19:41:50.473 17849 17849 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
10-19 19:41:50.473 17849 17849 F DEBUG   : Build fingerprint: 'google/crosshatch/crosshatch:12/SPB5.210812.002/7671067:user/release-keys'
10-19 19:41:50.473 17849 17849 F DEBUG   : Revision: 'MP1.0'
10-19 19:41:50.473 17849 17849 F DEBUG   : ABI: 'arm64'
10-19 19:41:50.473 17849 17849 F DEBUG   : Timestamp: 2021-10-19 19:41:49.903736988+0900
10-19 19:41:50.473 17849 17849 F DEBUG   : Process uptime: 0s
10-19 19:41:50.473 17849 17849 F DEBUG   : Cmdline: com.example.myapplication
10-19 19:41:50.474 17849 17849 F DEBUG   : pid: 17810, tid: 17810, name: e.myapplication  >>> com.example.myapplication <<<
10-19 19:41:50.474 17849 17849 F DEBUG   : uid: 10240
10-19 19:41:50.474 17849 17849 F DEBUG   : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x7acf9d733c
10-19 19:41:50.474 17849 17849 F DEBUG   :     x0  0000000000000000  x1  00000000000008fc  x2  0000007a76760c71  x3  0000000000000000
10-19 19:41:50.474 17849 17849 F DEBUG   :     x4  0000000000000010  x5  0000007ba4db49d0  x6  0000007b34dc3680  x7  3de38e3900000608
10-19 19:41:50.474 17849 17849 F DEBUG   :     x8  0000007bb4dbedf0  x9  0000007acf9db2aa  x10 0000000000000000  x11 0000007acf9d6640
10-19 19:41:50.474 17849 17849 F DEBUG   :     x12 0000000000000009  x13 0000000000000000  x14 0000000000000061  x15 00000000ebad6a89
10-19 19:41:50.474 17849 17849 F DEBUG   :     x16 0000007a767cfef8  x17 0000007d9a564b40  x18 0000007da3830000  x19 0000007feaf56a08
10-19 19:41:50.474 17849 17849 F DEBUG   :     x20 0000000000000000  x21 0000007ba4da50b0  x22 0000007bb4dbedf0  x23 0000007ba4da50b8
10-19 19:41:50.474 17849 17849 F DEBUG   :     x24 0000000000000009  x25 000000000000067e  x26 0000000000000012  x27 0000000000000008
10-19 19:41:50.474 17849 17849 F DEBUG   :     x28 0000007b64dc8440  x29 0000000000000000
10-19 19:41:50.474 17849 17849 F DEBUG   :     lr  0000007a7678a964  sp  0000007feaf56810  pc  0000007a7678b7c0  pst 0000000060000000
10-19 19:41:50.474 17849 17849 F DEBUG   : backtrace:
10-19 19:41:50.474 17849 17849 F DEBUG   :       #00 pc 000000000003c7c0  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)
10-19 19:41:50.474 17849 17849 F DEBUG   :       #01 pc 000000000003b960  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)
10-19 19:41:50.474 17849 17849 F DEBUG   :       #02 pc 000000000003bb48  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)
10-19 19:41:50.474 17849 17849 F DEBUG   :       #03 pc 000000000003bafc  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)
10-19 19:41:50.474 17849 17849 F DEBUG   :       #04 pc 0000000000036c98  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)
10-19 19:41:50.474 17849 17849 F DEBUG   :       #05 pc 00000000000324a4  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)
10-19 19:41:50.474 17849 17849 F DEBUG   :       #06 pc 0000000000031b5c  /data/app/~~mHaMq-e9ocbm9UfYnkCGkQ==/com.example.myapplication-HgG9vkluwDDO1K78-Vzr0A==/lib/arm64/liblanguage_id_jni.so (Java_com_google_mlkit_nl_languageid_internal_LanguageIdentificationJni_nativeIdentifyLanguage+100) (BuildId: 859ec0ec2000a39e6ae8ed42e1704f46)

But after downgrade to AGP 4.2, crash is not reproducible.

$ git clone https://github.com/ganadist/VersionCodeDemo -b mlkit_agp42 mlkit_agp42
$ cd mlkit_agp42
$ ./gradlew :app:pPRUA
$ adb install app/build/outputs/universal_apk/productionRelease/app-production-release-universal.apk
$ adb shell am start -n com.example.myapplication/.MainActivity

Also, I tried to disable inline optimizers on R8 with AGP 7.0, and crash is not reproducible.

$ git clone https://github.com/ganadist/VersionCodeDemo -b mlkit_agp7_r8_disable_inline_optimizer  mlkit_agp7_r8
$ cd mlkit_agp7_r8
$ ./gradlew :app:pPRUA
$ adb install app/build/outputs/universal_apk/productionRelease/app-production-release-universal.apk
$ adb shell am start -n com.example.myapplication/.MainActivity

I tried the repro steps but got a NPE when I run ./gradlew :app:pPRUA

FAILURE: Build failed with an exception.

* What went wrong:
java.lang.NullPointerException
> java.lang.NullPointerException (no error message)

Could you also check if this is reproducible on 17.0.0 or 17.0.1? If yes, could you attach the full log that I can take a look? Thanks!

Here are gradle build scan logs for each branches.
All builds were clean build, and disabled build cache.

• mlkit_agp7 : https://scans.gradle.com/s/qrymdqfzwokbq
• mlkit_agp42 : https://scans.gradle.com/s/b6644hzfyfhaw
• mlkit_agp7_r8_disable_inline_optimizer : https://scans.gradle.com/s/c6h5hy2nxod4u
  • You can see R8 debug mode on build log : https://scans.gradle.com/s/c6h5hy2nxod4u/console-log#L95

Also, I pushed to update MLKit Language Id version 17.0.1 on mlkit17_agp7 branch And here is gradle build scan

• https://scans.gradle.com/s/ytaa2kkbp5vc4
  • Here is version of com.google.mlkit:language-id

And here is crash log after apply 17.0.1
You can see that BuildId of liblanguage_id_l2c_jni.so was changed from 859ec0ec2000a39e6ae8ed42e1704f46 to be6e59455cc10135330c93acdebfc121

10-20 03:07:24.522 24587 24628 F libc    : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x7acf995426 in tid 24628 (pool-3-thread-3), pid 24587 (e.myapplication)
10-20 03:07:25.190 24710 24710 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
10-20 03:07:25.190 24710 24710 F DEBUG   : Build fingerprint: 'google/crosshatch/crosshatch:12/SPB5.210812.002/7671067:user/release-keys'
10-20 03:07:25.190 24710 24710 F DEBUG   : Revision: 'MP1.0'
10-20 03:07:25.190 24710 24710 F DEBUG   : ABI: 'arm64'
10-20 03:07:25.190 24710 24710 F DEBUG   : Timestamp: 2021-10-20 03:07:24.583346246+0900
10-20 03:07:25.190 24710 24710 F DEBUG   : Process uptime: 0s
10-20 03:07:25.190 24710 24710 F DEBUG   : Cmdline: com.example.myapplication
10-20 03:07:25.190 24710 24710 F DEBUG   : pid: 24587, tid: 24628, name: pool-3-thread-3  >>> com.example.myapplication <<<
10-20 03:07:25.190 24710 24710 F DEBUG   : uid: 10240
10-20 03:07:25.190 24710 24710 F DEBUG   : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x7acf995426
10-20 03:07:25.190 24710 24710 F DEBUG   :     x0  0000007b54da9d30  x1  0000007d9a5fe7cc  x2  0000000000000000  x3  0000000000000010
10-20 03:07:25.190 24710 24710 F DEBUG   :     x4  0000000000000000  x5  0000007c34dbc79c  x6  0000002f0000083b  x7  000003c300002dd5
10-20 03:07:25.190 24710 24710 F DEBUG   :     x8  0000000000000001  x9  0000000000000004  x10 0000000000000010  x11 0000000000000000
10-20 03:07:25.190 24710 24710 F DEBUG   :     x12 0000000000000000  x13 000000000000217e  x14 0000007acf9932a8  x15 000000000000217e
10-20 03:07:25.190 24710 24710 F DEBUG   :     x16 0000000000000000  x17 0000007d9a564c78  x18 0000007a6ef18000  x19 0000007c34dbc580
10-20 03:07:25.190 24710 24710 F DEBUG   :     x20 0000007ca4dc7170  x21 0000007ca4dc7800  x22 0000007ca4dc71e0  x23 0000000000000000
10-20 03:07:25.190 24710 24710 F DEBUG   :     x24 0000000000000018  x25 0000000000000007  x26 0000000000000006  x27 0000000000000004
10-20 03:07:25.190 24710 24710 F DEBUG   :     x28 0000007ca4dc7090  x29 0000007cb4da9940
10-20 03:07:25.190 24710 24710 F DEBUG   :     lr  0000007a770a9624  sp  0000007a6f7de9c0  pc  0000007a770a96a8  pst 0000000020000000
10-20 03:07:25.190 24710 24710 F DEBUG   : backtrace:
10-20 03:07:25.190 24710 24710 F DEBUG   :       #00 pc 00000000000386a8  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.190 24710 24710 F DEBUG   :       #01 pc 00000000000388a0  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.190 24710 24710 F DEBUG   :       #02 pc 00000000000844a0  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.190 24710 24710 F DEBUG   :       #03 pc 000000000008783c  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.190 24710 24710 F DEBUG   :       #04 pc 0000000000035fc4  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.190 24710 24710 F DEBUG   :       #05 pc 0000000000034954  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.190 24710 24710 F DEBUG   :       #06 pc 00000000000340e8  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/lib/arm64/liblanguage_id_l2c_jni.so (Java_com_google_mlkit_nl_languageid_internal_ThickLanguageIdentifier_nativeIdentifyPossibleLanguages+108) (BuildId: be6e59455cc10135330c93acdebfc121)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #07 pc 00000000002d9a44  /apex/com.android.art/lib64/libart.so (art_quick_generic_jni_trampoline+148) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #08 pc 000000000020a700  /apex/com.android.art/lib64/libart.so (nterp_helper+5648) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #09 pc 00000000000cd0dc  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #10 pc 000000000020a044  /apex/com.android.art/lib64/libart.so (nterp_helper+3924) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #11 pc 00000000000ccfa8  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #12 pc 0000000000557cb4  /system/framework/arm64/boot-framework.oat (android.os.Binder.transact+148) (BuildId: 43a571a0ad85d6451b47016336a541ecb0eb12bb)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #13 pc 000000000020b53c  /apex/com.android.art/lib64/libart.so (nterp_helper+9292) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #14 pc 00000000000b7aba  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #15 pc 000000000020a044  /apex/com.android.art/lib64/libart.so (nterp_helper+3924) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #16 pc 00000000000a7496  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #17 pc 000000000020a044  /apex/com.android.art/lib64/libart.so (nterp_helper+3924) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #18 pc 00000000000a7360  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #19 pc 000000000020ae64  /apex/com.android.art/lib64/libart.so (nterp_helper+7540) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #20 pc 000000000009e46c  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #21 pc 000000000020ae64  /apex/com.android.art/lib64/libart.so (nterp_helper+7540) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #22 pc 00000000000d33d6  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #23 pc 000000000020ae64  /apex/com.android.art/lib64/libart.so (nterp_helper+7540) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #24 pc 000000000009df0a  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #25 pc 0000000000209124  /apex/com.android.art/lib64/libart.so (nterp_helper+52) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #26 pc 000000000009e350  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #27 pc 000000000037b9ac  /apex/com.android.art/javalib/arm64/boot.oat (java.util.concurrent.ThreadPoolExecutor.runWorker+988) (BuildId: ab2bf4ec264efdb6c452a238be38fe624de826b8)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #28 pc 00000000003751d4  /apex/com.android.art/javalib/arm64/boot.oat (java.util.concurrent.ThreadPoolExecutor$Worker.run+68) (BuildId: ab2bf4ec264efdb6c452a238be38fe624de826b8)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #29 pc 000000000020aec4  /apex/com.android.art/lib64/libart.so (nterp_helper+7636) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #30 pc 000000000009e370  /data/app/~~KjjULZV48O7KSOgOP1wYNQ==/com.example.myapplication-vFUidUPTjaGg4oo3SRAYJw==/oat/arm64/base.vdex
10-20 03:07:25.191 24710 24710 F DEBUG   :       #31 pc 00000000001bf35c  /apex/com.android.art/javalib/arm64/boot.oat (java.lang.Thread.run+76) (BuildId: ab2bf4ec264efdb6c452a238be38fe624de826b8)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #32 pc 00000000002d0164  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+548) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #33 pc 000000000031ccac  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+156) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #34 pc 00000000003cf8a0  /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeVirtualOrInterfaceWithJValues<art::ArtMethod*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, art::ArtMethod*, jvalue const*)+380) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #35 pc 0000000000460894  /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+992) (BuildId: cdecb8dde1264c9871695c29854aa3b1)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #36 pc 00000000000b1910  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+264) (BuildId: ba489d4985c0cf173209da67405662f9)
10-20 03:07:25.191 24710 24710 F DEBUG   :       #37 pc 00000000000513f0  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: ba489d4985c0cf173209da67405662f9)

Cross-posted on R8 issue tracker. https://issuetracker.google.com/issues/203573699

Hi,

Looks like we figured out the root cause in b/203573699

For temporary workarounds for the existing SDKs, you need to add this rule

-keep class com.google.mlkit.nl.languageid.internal.LanguageIdentificationJni { *; }

for language-id 16.1.1, and add this rule

-keep class com.google.mlkit.nl.languageid.internal.ThickLanguageIdentifier { *; }

for version language-id 17.0.0+ for the newer model.

We'll fix this issue in the upcoming release so that you'll not need these workarounds in the future release.

Thanks a lot for reporting this issue!

Added workarounds in Known issues section in public docs.

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3294255

Disable Metalava K2's UAST in savedstate

Disable Metalava K2's UAST in `savedstate`

* Currently, resolving JVM annotations from the common source set in K2 is not functioning correctly. This is due to the absence of a common source JAR containing the necessary annotations. Disabling UAST allows Metalava to continue operating while we address the underlying issue with annotation resolution in Metalava.

Test: N/A
Bug: 334076622
Change-Id: I61396dcb8b28fb545ea625c7d4408969e7259039

We have created b/374102924 to add KotlinX Serialization support for Saved State KMP.

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3313277

Add Long support to Saved State KMP

Add `Long` support to Saved State KMP

RelNote: "SavedState KMP now supports Long."
Test: SavedStateTest
Bug: 334076622
Change-Id: I4c180e12c8259436628e5b6b62a0dfa38f003be6

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3315651

Fix SavedStateReader.get*OrElse not returning defaultValue for primitives

Fix `SavedStateReader.get*OrElse` not returning `defaultValue` for primitives 
 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: Ic1d74cda55075f87718a0e4315fd6f64465276ca

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3311742

Add contentDeepEquals to Saved State

Add `contentDeepEquals` to Saved State 
 
RelNote: "SavedState KMP now supports `contentDeepEquals` comparison." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: Ia515c97b16e17bcb8a20dafbc043cf2d971c4405

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3314754

Add additional savedState factory functions

Add additional `savedState` factory functions 
 
RelNote: "Add additional `savedState` factory parameters supporting an initial `Map<String, Any>`" 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: I9b37da20978bc549e1ab5c354985aa4ca450f6be

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3316780

Add support for marking a key as a null reference in SavedState

Add support for marking a key as a `null` reference in `SavedState` 
 
* When encoding/decoding data that contains properties that are both nullable and has default values, we need a way to identify both. 
 
RelNote: "Add `putNull` and `isNull` to SavedState KMP." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: Iea71d9d8652c9cbd45e701d5b4785579acd73969

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3310926

Add Char support to Saved State KMP

Add `Char` support to Saved State KMP 
 
RelNote: "SavedState KMP now supports Char." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: I9ac2ff6589371bd4bc79b1910334ce24710cd176

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3317337

Remove unused Writer.read/Reader.write methods from SavedState to avoid confusion

Remove unused `Writer.read`/`Reader.write` methods from SavedState to avoid confusion 
 
RelNote: "Remove unused methods." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: Ib63477d99028dd517b070af089409b7a3e433ac6

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3317338

Remove unused reader()/writer() methods from SavedState to avoid confusion

Remove unused `reader()`/`writer()` methods from SavedState to avoid confusion 
 
* Keeping a reference to a writer or reader, can force Kotlin to box the `SavedState`. 
* Include a warning making sure holding the reference is not recommended/supported. 
 
RelNote: "Remove unused methods." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: I1b49071b8db2500379e753713dbfc02f48f06d53

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3314836

Add Array support to Saved State KMP

Add `Array` support to Saved State KMP 
 
RelNote: "SavedState KMP now supports Arrays." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: Ic0552cac5744d8422524d8219438a6571f70c476

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3316968

Add toMap to SavedState

Add `toMap` to `SavedState` 
 
* Allows a `SavedState` to be converted into a map. 
* Deep copy: any nested `SavedState` will be converted into a map too. 
 
RelNote: "Add `toMap` to SavedState." 
Test: N/A 
Bug: 334076622 
Change-Id: I487b901051ad68a3e27f9a5550fd7336734abbb1

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3304623

Commonize SavedStateHandle

Commonize `SavedStateHandle` 
 
Test: SavedStateHandleTest 
Bug: 334076622 
Change-Id: I80f3a7bb79ae4e4eb239076c3ff2da219ab43e38

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3304801

Commonize SavedStateHandleController

Commonize `SavedStateHandleController` 
 
Test: N/A 
Bug: 334076622 
Change-Id: Ic0c6c091cd72ec0faf8fc56a6f19caf77911f088

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3320139

Remove recursive behaviour from toMap in SavedState

Remove recursive behaviour from `toMap` in `SavedState` 
 
RelNote: "N/A" 
Test: N/A 
Bug: 334076622 
Change-Id: Ic5b39c79119de5337dd478fdf1a30975d5520287

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3304802

Commonize SavedStateViewModelFactory

Commonize `SavedStateViewModelFactory` 
 
Test: N/A 
Bug: 334076622 
Change-Id: I9d2f206705523cb5c73a09f11a2522e9bae36150

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3304800

Commonize SavedStateHandleSupport

Commonize `SavedStateHandleSupport` 
 
Test: SavedStateHandleSupportTest 
Bug: 334076622 
Change-Id: I8b85f3fde27969950304823c376d09bf0de43843

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3307916

Add SavedStateHandleImpl

Add `SavedStateHandleImpl` 
 
* The new class will hold the data and logic from `SavedStateHandle`, and will be used by all platforms to share code. 
 
Test: N/A 
Bug: 334076622 
Change-Id: I9c384017a701a3ffe9491f2619dd3d13b41398f6

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3304803

Bump ViewModel SavedState ABI

Bump ViewModel SavedState ABI 
 
RelNote: "Lifecycle ViewModel SavedState is now KMP compatible" 
Test: N/A 
Bug: 334076622 
Change-Id: Ib63947f53600724de5ebf6c0e64c17c305592b2f

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3323374

Clean up SavedState KMP Implementation

Clean up SavedState KMP Implementation 
 
* Annotate constructors from `SavedStateWriter` and `SavedStateReader` in `common`, `android` and `nonAndroid` with `@PublishedApi`. Kotlin 1.9 introduces a warning if the expect and actual methods aren't annotated with `@PublishedApi` 
* All methods and constants in the `SavedState` are `@Published internal`, which are tracked by our tooling as a public API. By reducing the number of `@Published`, there is less APIs to maintain. 
* As everything is flag as `inline`, I have moved the suppression to `file:Suppress`. 
* For Android and JVM, included a `file:JvmName`, as class  were inconsistent due to `.android` and `.nonAndroid` suffix. 
* The original `getSingleResultOrThrow` function was created to share behavior between platforms. However, due to how default values work for primitives in `Bundle`, the original abstraction wasn't that useful for sharing code and created multiple levels of calls that was difficult to debug. 
* The original `getSingleResultOrElse` function was designed to handle generic lists. Since we've decided not to support generic lists and instead use typed lists (e.g., `List<Int>` instead of `List<T>`), this function became redundant with `getSingleResultOrThrow`. 
* The `SavedStateUtils` class was only used in the `SavedStateReader`. Its contents have been moved directly into the reader, and the class deleted. 
* The `keyNotFoundError` function now throws an `IllegalArgumentException` as it's caused by an invalid key provided by the caller. 
* The `valueNotFoundError` function throws an `IllegalStateException` as it indicates an inconsistency between the key and the internal state. 
* The error messages for `keyNotFoundError` and `valueNotFoundError` have been improved for clarity. 
 
RelNote: "N/A" 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: I55971ae2560300408153eea5eef7ec96fb70c7ce

The following release(s) address this bug.It is possible this bug has only been partially addressed:

• androidx.savedstate:savedstate:1.3.0-alpha04
• androidx.savedstate:savedstate-android:1.3.0-alpha04
• androidx.savedstate:savedstate-desktop:1.3.0-alpha04
• androidx.savedstate:savedstate-iosarm64:1.3.0-alpha04
• androidx.savedstate:savedstate-iossimulatorarm64:1.3.0-alpha04
• androidx.savedstate:savedstate-iosx64:1.3.0-alpha04
• androidx.savedstate:savedstate-linuxarm64:1.3.0-alpha04
• androidx.savedstate:savedstate-linuxx64:1.3.0-alpha04
• androidx.savedstate:savedstate-macosarm64:1.3.0-alpha04
• androidx.savedstate:savedstate-macosx64:1.3.0-alpha04

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3342931

Add contentDeepHashCode to Saved State

Add `contentDeepHashCode` to Saved State 
 
RelNote: "SavedState KMP now supports `contentDeepHashCode`." 
Test: SavedStateTest 
Bug: 334076622 
Change-Id: I4d9f7de7d26b78c592660e2ab137c593667b7675

The following release(s) address this bug.It is possible this bug has only been partially addressed:

• androidx.lifecycle:lifecycle-viewmodel-savedstate:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-android:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-desktop:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-iosarm64:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-iossimulatorarm64:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-iosx64:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-linuxarm64:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-linuxx64:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-macosarm64:2.9.0-alpha07
• androidx.lifecycle:lifecycle-viewmodel-savedstate-macosx64:2.9.0-alpha07
• androidx.savedstate:savedstate:1.3.0-alpha05
• androidx.savedstate:savedstate-android:1.3.0-alpha05
• androidx.savedstate:savedstate-desktop:1.3.0-alpha05
• androidx.savedstate:savedstate-iosarm64:1.3.0-alpha05
• androidx.savedstate:savedstate-iossimulatorarm64:1.3.0-alpha05
• androidx.savedstate:savedstate-iosx64:1.3.0-alpha05
• androidx.savedstate:savedstate-linuxarm64:1.3.0-alpha05
• androidx.savedstate:savedstate-linuxx64:1.3.0-alpha05
• androidx.savedstate:savedstate-macosarm64:1.3.0-alpha05
• androidx.savedstate:savedstate-macosx64:1.3.0-alpha05

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3342501

Add Android specific types to SavedState reader and writer

Add Android specific types to `SavedState` reader and writer 
 
* Include support to Android specific types: Binder, Size, SizeF, 
 ParcelableArray and SparseParcelableArray. 
* Include support to JVM specific type: Serializable. 
* Include support to common type: CharSequence. 
* Note that Serializable is currently only available on Android. 
 
RelNote: "SavedState KMP now supports: IBinder, Size, SizeF, 
 Array<Parcelable>, SparseArray<Parcelable> and Serializable (Android)." 
Test: SavedStateAndroidTest.android.kt 
Bug: 334076622 
Change-Id: I1ba9446ed4dad6e018cbf17feaef1f5fcdeb6c3f

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3349813

Fix KDocs throws in SavedStateReader

Fix KDocs `throws` in `SavedStateReader` 
 
RelNote: "N/A" 
Test: SavedStateTest.android.kt 
Bug: 334076622 
Change-Id: I359ae160033f1cd50412ac9974fc0e8fa2816059

Project: platform/frameworks/support
Branch: androidx-main
Author: Marcello Galhardo <mgalhardo@google.com>
Link:      https://android-review.googlesource.com/3349812

Rename values to value in SavedStateWriter

Rename `values` to `value` in `SavedStateWriter` 
 
* Rename `values` argument to `value` in `SavedStateWriter` to match naming used by `Bundle`. 
* Rename `values` to `from` in `putAll` to match naming convention from `Map` interface. 
 
RelNote: "N/A" 
Test: SavedStateTest.android.kt 
Bug: 334076622 
Change-Id: Icc4665ded332b2a9e128f2d55d0c032e1aa1898b

The following release(s) address this bug.It is possible this bug has only been partially addressed:

• androidx.savedstate:savedstate:1.3.0-alpha06
• androidx.savedstate:savedstate-android:1.3.0-alpha06
• androidx.savedstate:savedstate-desktop:1.3.0-alpha06
• androidx.savedstate:savedstate-iosarm64:1.3.0-alpha06
• androidx.savedstate:savedstate-iossimulatorarm64:1.3.0-alpha06
• androidx.savedstate:savedstate-iosx64:1.3.0-alpha06
• androidx.savedstate:savedstate-linuxarm64:1.3.0-alpha06
• androidx.savedstate:savedstate-linuxx64:1.3.0-alpha06
• androidx.savedstate:savedstate-macosarm64:1.3.0-alpha06
• androidx.savedstate:savedstate-macosx64:1.3.0-alpha06