[split_config.arm64_v8a.apk!libobjectbox-jni.so] Java_io_objectbox_query_Query_nativeFind

[jobernolte]

Describe the bug
Some of our users experience crashes of our App caused by the ObjectBox library. This is a follow up report to #1131

Basic info (please complete the following information):

• ObjectBox version (are you using the latest version?): 3.7.0
• Reproducibility: not reproducible
• Device: all devices
• OS: any Android version

To Reproduce
not applicable

Expected behavior
The App should not crash ;)

Logs, stack traces

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 9116 >>> com.elogames.app <<<

backtrace:
  #00  pc 0x000000000013ad98  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/split_config.arm64_v8a.apk!libobjectbox-jni.so
  #01  pc 0x00000000000b58dc  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/split_config.arm64_v8a.apk!libobjectbox-jni.so (Java_io_objectbox_query_Query_nativeFind+2572)
  #02  pc 0x000000000021e494  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.odex (art_jni_trampoline+116)
  #03  pc 0x000000000020b02c  /apex/com.android.art/lib64/libart.so (nterp_helper+7468)
  #04  pc 0x00000000036b31fa  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.query.Query.lambda$find$2$io-objectbox-query-Query+22)
  #05  pc 0x000000000020a254  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #06  pc 0x00000000036b1190  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.query.Query$$ExternalSyntheticLambda4.call+4)
  #07  pc 0x000000000020b074  /apex/com.android.art/lib64/libart.so (nterp_helper+7540)
  #08  pc 0x000000000369cb3e  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.BoxStore.callInReadTx+42)
  #09  pc 0x000000000020a254  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #10  pc 0x000000000369cc3e  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.BoxStore.callInReadTxWithRetry+6)
  #11  pc 0x000000000020a254  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #12  pc 0x00000000036b3070  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.query.Query.callInReadTx+20)
  #13  pc 0x000000000020a254  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #14  pc 0x00000000036b318e  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.query.Query.find+10)
  #15  pc 0x000000000020a254  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #16  pc 0x00000000036b2822  /data/app/~~W2BhjsM0UKtJwGy4rjk51A==/com.elogames.app-Grauq7pIpDBoNE67XGqjNQ==/oat/arm64/base.vdex (io.objectbox.query.QueryPublisher.run+102)
  #17  pc 0x00000000001ea68c  /system/framework/arm64/boot.oat (java.util.concurrent.Executors$RunnableAdapter.call+76)
  #18  pc 0x00000000002985ec  /system/framework/arm64/boot.oat (java.util.concurrent.FutureTask.run+188)
  #19  pc 0x0000000000308ed0  /system/framework/arm64/boot.oat (java.util.concurrent.ThreadPoolExecutor.runWorker+976)
  #20  pc 0x00000000003060b8  /system/framework/arm64/boot.oat (java.util.concurrent.ThreadPoolExecutor$Worker.run+72)
  #21  pc 0x000000000017f210  /system/framework/arm64/boot.oat (java.lang.Thread.run+80)
  #22  pc 0x0000000000457b6c  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+556)
  #23  pc 0x0000000000484e54  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+156)
  #24  pc 0x0000000000484b20  /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeVirtualOrInterfaceWithJValues<art::ArtMethod*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, art::ArtMethod*, jvalue const*)+400)
  #25  pc 0x00000000005ce3a0  /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+1684)
  #26  pc 0x00000000000b6668  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+208)
  #27  pc 0x00000000000532cc  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64)

[greenrobot-team]

Thanks for reporting! It's odd as this should have thrown a Java exception. I passed this on to the team.

Internal issue objectbox/objectbox-java#181

[greenrobot-team]

@jobernolte Do you have any additional error logs associated to that crash? Any additional details would help.

[jobernolte]

There's only one crash showing up on Crashlytics. But I think this is a different problem.

Fatal Exception: java.lang.RuntimeException: Unable to get provider androidx.startup.InitializationProvider: androidx.startup.StartupException: java.lang.LinkageError: [ObjectBox] Android failed to load native library, check your APK/App Bundle includes a supported ABI or use ReLinker https://docs.objectbox.io/android/app-bundle-and-split-apk (vendor=The Android Project,os=linux,os.arch=x86_64,SUPPORTED_ABIS=[x86_64, arm64-v8a, x86, armeabi-v7a, armeabi])
       at android.app.ActivityThread.installProvider(ActivityThread.java:7464)
       at android.app.ActivityThread.installContentProviders(ActivityThread.java:6976)
       at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6747)
       at android.app.ActivityThread.access$1500(ActivityThread.java:256)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2091)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loopOnce(Looper.java:201)
       at android.os.Looper.loop(Looper.java:288)
       at android.app.ActivityThread.main(ActivityThread.java:7870)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

[greenrobot-team]

@jobernolte I mean like actual log output, e.g. what would be seen in Logcat, related to the error. Though if I remember correctly, Crashlytics can't collect the Android log output.

[jobernolte]

Unfortunately this is not possible, as we do not use any other framework to collect crashes and logcat information at the same time (eg Instabug).

[15915763299]

I have the same problem. When my app is launching and go into homepage, launch some query then crash. It is the same user, crash many times.

0 | #00 pc 00000000001004c4 /data/app/com.jglive.xinlian-TtVL4Y1pVgOfBpLuWFVJsg==/lib/arm64/libobjectbox-jni.so
1 | #01 pc 00000000000b3a08 /data/app/com.jglive.xinlian-TtVL4Y1pVgOfBpLuWFVJsg==/lib/arm64/libobjectbox-jni.so (Java_io_objectbox_query_Query_nativeFind+2512)
2 | #02 pc 00000000005625e4 /system/lib64/libart.so
3 | #03 pc 000000000055958c /system/lib64/libart.so
4 | #04 pc 00000000000b160c /system/lib64/libart.so (_ZN3art9ArtMethod6InvokeEPNS_6ThreadEPjjPNS_6JValueEPKc+204)
5 | #05 pc 0000000000265efc /system/lib64/libart.so (_ZN3art11interpreter34ArtInterpreterToCompiledCodeBridgeEPNS_6ThreadEPNS_9ArtMethodEPNS_11ShadowFrameEtPNS_6JValueE+348)
6 | #06 pc 0000000000261028 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb1ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+752)
7 | #07 pc 00000000005223d4 /system/lib64/libart.so (MterpInvokeVirtualRange+580)
8 | #08 pc 000000000054bf18 /system/lib64/libart.so (ExecuteMterpImpl+15000)
9 | #09 pc 0000000000239c08 /system/lib64/libart.so
10 | #10 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
11 | #11 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
12 | #12 pc 0000000000521ee8 /system/lib64/libart.so (MterpInvokeDirect+300)
13 | #13 pc 000000000054bd18 /system/lib64/libart.so (ExecuteMterpImpl+14488)
14 | #14 pc 0000000000239c08 /system/lib64/libart.so
15 | #15 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
16 | #16 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
17 | #17 pc 00000000005220ac /system/lib64/libart.so (MterpInvokeStatic+208)
18 | #18 pc 000000000054bd98 /system/lib64/libart.so (ExecuteMterpImpl+14616)
19 | #19 pc 0000000000239c08 /system/lib64/libart.so
20 | #20 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
21 | #21 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
22 | #22 pc 0000000000521960 /system/lib64/libart.so (MterpInvokeInterface+948)
23 | #23 pc 000000000054be18 /system/lib64/libart.so (ExecuteMterpImpl+14744)
24 | #24 pc 0000000000239c08 /system/lib64/libart.so
25 | #25 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
26 | #26 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
27 | #27 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
28 | #28 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
29 | #29 pc 0000000000239c08 /system/lib64/libart.so
30 | #30 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
31 | #31 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
32 | #32 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
33 | #33 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
34 | #34 pc 0000000000239c08 /system/lib64/libart.so
35 | #35 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
36 | #36 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
37 | #37 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
38 | #38 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
39 | #39 pc 0000000000239c08 /system/lib64/libart.so
40 | #40 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
41 | #41 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
42 | #42 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
43 | #43 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
44 | #44 pc 0000000000239c08 /system/lib64/libart.so
45 | #45 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
46 | #46 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
47 | #47 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
48 | #48 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
49 | #49 pc 0000000000239c08 /system/lib64/libart.so
50 | #50 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
51 | #51 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
52 | #52 pc 00000000005220ac /system/lib64/libart.so (MterpInvokeStatic+208)
53 | #53 pc 000000000054bd98 /system/lib64/libart.so (ExecuteMterpImpl+14616)
54 | #54 pc 0000000000239c08 /system/lib64/libart.so
55 | #55 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
56 | #56 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
57 | #57 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
58 | #58 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
59 | #59 pc 0000000000239c08 /system/lib64/libart.so
60 | #60 pc 000000000023f6fc /system/lib64/libart.so (_ZN3art11interpreter33ArtInterpreterToInterpreterBridgeEPNS_6ThreadERKNS_20CodeItemDataAccessorEPNS_11ShadowFrameEPNS_6JValueE+220)
61 | #61 pc 000000000025fee8 /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+944)
62 | #62 pc 0000000000520ba4 /system/lib64/libart.so (MterpInvokeVirtual+592)
63 | #63 pc 000000000054bc18 /system/lib64/libart.so (ExecuteMterpImpl+14232)
64 | io.objectbox.query.Query.nativeFind(Native Method)
65 | io.objectbox.query.Query.u(Query.java:12)
66 | io.objectbox.query.Query.d(Query.java:1)
67 | io.objectbox.query.e.call(R8$$SyntheticClass:2)
68 | io.objectbox.BoxStore.e(BoxStore.java:20)
69 | io.objectbox.BoxStore.f(BoxStore.java:3)
70 | io.objectbox.query.Query.g(Query.java:11)
71 | io.objectbox.query.Query.n(Query.java:4)
72 | com.jglive.xinlian.objectbox.impl.h.d(ObjectboxModel.kt:55)
73 | com.jglive.xinlian.objectbox.impl.h.e(ObjectboxModel.kt:8)

[greenrobot]

@15915763299 Thanks for reaching out. What ObjectBox version is this? Can you update to the latest version?

[jobernolte]

@greenrobot The crashes still occur with the latest version 4.0.3:

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 28740 >>> com.elogames.app <<<

backtrace:
  #00  pc 0x000000000017a248  /data/app/~~QwFBSR5S1M6HUjfYF6qF8g==/com.elogames.app-9C7iVh6XnphHhSo-fg-PDA==/split_config.arm64_v8a.apk!libobjectbox-jni.so (BuildId: b6e69c8f04ba39df)
  #01  pc 0x00000000000dbf14  /data/app/~~QwFBSR5S1M6HUjfYF6qF8g==/com.elogames.app-9C7iVh6XnphHhSo-fg-PDA==/split_config.arm64_v8a.apk!libobjectbox-jni.so (Java_io_objectbox_query_Query_nativeFind+2980) (BuildId: b6e69c8f04ba39df)
  #02  pc 0x000000000035a100  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (art_jni_trampoline+112)

[jobernolte]

@greenrobot I still experience these crashes. I've already updated to the latest version 4.3.0. Is there any chance you will fix this issue?

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 15107 >>> com.elogames.app <<<

backtrace:
  #00  pc 0x00000000001a7fd8  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/split_config.arm64_v8a.apk!libobjectbox-jni.so (BuildId: f9536fa2a351184d)
  #01  pc 0x00000000000fbfd4  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/split_config.arm64_v8a.apk!libobjectbox-jni.so (Java_io_objectbox_query_Query_nativeFind+3344) (BuildId: f9536fa2a351184d)
  #02  pc 0x000000000037da60  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (art_jni_trampoline+112)
  #03  pc 0x000000000078319c  /apex/com.android.art/lib64/libart.so (nterp_helper+7468)
  #04  pc 0x0000000000610346  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/base.apk (io.objectbox.query.Query.lambda$find$2$io-objectbox-query-Query+22)
  #05  pc 0x00000000007823c4  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #06  pc 0x000000000060dc28  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/base.apk (io.objectbox.query.Query$$ExternalSyntheticLambda11.call+4)
  #07  pc 0x000000000206f4d8  /memfd:jit-cache (io.objectbox.BoxStore.callInReadTx+360)
  #08  pc 0x0000000000782420  /apex/com.android.art/lib64/libart.so (nterp_helper+4016)
  #09  pc 0x000000000062714a  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/base.apk (io.objectbox.BoxStore.callInReadTxWithRetry+6)
  #10  pc 0x00000000007823c4  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #11  pc 0x0000000000610114  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/base.apk (io.objectbox.query.Query.callInReadTx+20)
  #12  pc 0x00000000007823c4  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #13  pc 0x0000000000610232  /data/app/~~mD1VoNSbmOZ_ggZzo3kGgw==/com.elogames.app-Ey3m7yjaWvfpT4xPjo4DwQ==/base.apk (io.objectbox.query.Query.find+10)
  #14  pc 0x00000000020af194  /memfd:jit-cache (io.objectbox.query.QueryPublisher.run+660)
  #15  pc 0x0000000000525ecc  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.util.concurrent.Executors$RunnableAdapter.call+60)
  #16  pc 0x00000000005b3e04  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.util.concurrent.FutureTask.run+164)
  #17  pc 0x00000000005fd944  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.util.concurrent.ThreadPoolExecutor.runWorker+724)
  #18  pc 0x00000000005fb0f8  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.util.concurrent.ThreadPoolExecutor$Worker.run+56)
  #19  pc 0x00000000004d5ca0  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.lang.Thread.run+64)
  #20  pc 0x0000000000368774  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+612)
  #21  pc 0x0000000000353f24  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+132)
  #22  pc 0x0000000000947748  /apex/com.android.art/lib64/libart.so (art::detail::ShortyTraits<(char)86>::Type art::ArtMethod::InvokeInstance<(char)86>(art::Thread*, art::ObjPtr<art::mirror::Object>, art::detail::ShortyTraits<>::Type...)+60)
  #23  pc 0x0000000000636e80  /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+1344)
  #24  pc 0x0000000000636930  /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallbackWithUffdGc(void*)+8)
  #25  pc 0x0000000000070668  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+200)
  #26  pc 0x0000000000061a00  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64)

2nd Stacktrace:

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 10845 >>> com.elogames.app <<<

backtrace:
  #00  pc 0x0000000200000001 
  #01  pc 0x00000000001a9cd0  /data/app/~~BxjYgOCF4SX6bMx1qrStLQ==/com.elogames.app-0OUB8xJ8wxeWfn_drEYFWA==/split_config.arm64_v8a.apk!libobjectbox-jni.so (BuildId: f9536fa2a351184d)
  #02  pc 0x00000000001a9a54  /data/app/~~BxjYgOCF4SX6bMx1qrStLQ==/com.elogames.app-0OUB8xJ8wxeWfn_drEYFWA==/split_config.arm64_v8a.apk!libobjectbox-jni.so (BuildId: f9536fa2a351184d)
  #03  pc 0x00000000000fbe04  /data/app/~~BxjYgOCF4SX6bMx1qrStLQ==/com.elogames.app-0OUB8xJ8wxeWfn_drEYFWA==/split_config.arm64_v8a.apk!libobjectbox-jni.so (Java_io_objectbox_query_Query_nativeFind+2880) (BuildId: f9536fa2a351184d)
  #04  pc 0x00000000002124cc  /data/app/~~BxjYgOCF4SX6bMx1qrStLQ==/com.elogames.app-0OUB8xJ8wxeWfn_drEYFWA==/oat/arm64/base.odex (art_jni_trampoline+124)
  #05  pc 0x0000000000218964  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+548)
  #06  pc 0x00000000002851f0  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+184)
...

3rd Stacktrace:

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 12677 >>> com.elogames.app <<<

backtrace:
  Unknown
  #01  pc 0x00000000000fbe80  /data/app/~~x3w6rRuyJf9E_yhWygsOeg==/com.elogames.app-HCLcJxShEpdT0_RVbiIP2Q==/split_config.arm64_v8a.apk!libobjectbox-jni.so (Java_io_objectbox_query_Query_nativeFind+3004) (BuildId: f9536fa2a351184d)
  #02  pc 0x0000000000389a60  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (art_jni_trampoline+112)
  #03  pc 0x000000000078319c  /apex/com.android.art/lib64/libart.so (nterp_helper+7468)
  #04  pc 0x0000000000610346  /data/app/~~x3w6rRuyJf9E_yhWygsOeg==/com.elogames.app-HCLcJxShEpdT0_RVbiIP2Q==/base.apk (io.objectbox.query.Query.lambda$find$2$io-objectbox-query-Query+22)
  #05  pc 0x00000000007823c4  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #06  pc 0x000000000060dc28  /data/app/~~x3w6rRuyJf9E_yhWygsOeg==/com.elogames.app-HCLcJxShEpdT0_RVbiIP2Q==/base.apk (io.objectbox.query.Query$$ExternalSyntheticLambda11.call+4)
  #07  pc 0x00000000020790f8  /memfd:jit-cache (io.objectbox.BoxStore.callInReadTx+360)
  #08  pc 0x0000000000782420  /apex/com.android.art/lib64/libart.so (nterp_helper+4016)
  #09  pc 0x000000000062714a  /data/app/~~x3w6rRuyJf9E_yhWygsOeg==/com.elogames.app-HCLcJxShEpdT0_RVbiIP2Q==/base.apk (io.objectbox.BoxStore.callInReadTxWithRetry+6)
  #10  pc 0x00000000007823c4  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #11  pc 0x0000000000610114  /data/app/~~x3w6rRuyJf9E_yhWygsOeg==/com.elogames.app-HCLcJxShEpdT0_RVbiIP2Q==/base.apk (io.objectbox.query.Query.callInReadTx+20)
  #12  pc 0x00000000007823c4  /apex/com.android.art/lib64/libart.so (nterp_helper+3924)
  #13  pc 0x0000000000610232  /data/app/~~x3w6rRuyJf9E_yhWygsOeg==/com.elogames.app-HCLcJxShEpdT0_RVbiIP2Q==/base.apk (io.objectbox.query.Query.find+10)
  #14  pc 0x00000000020be144  /memfd:jit-cache (io.objectbox.query.QueryPublisher.run+660)
  #15  pc 0x000000000053585c  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.util.concurrent.Executors$RunnableAdapter.call+60)
...

[greenrobot-team]

@jobernolte Thanks for reporting! At this point I think this is related to either

• the BoxStore getting closed while a query is running (either explicitly or due to garbage collection) or
• the used Box or Query instances getting replaced, invalidating their reference to their native counterpart.

So make sure that your code keeps references to any used ObjectBox classes until code that is using them is finished. Based on the stack traces it appears queries are executed on a background thread. Make sure these threads finish their work (notably cancel any subscriptions) before removing references to ObjectBox classes or explicitly closing them.

[greenrobot]

Also, can you check if there is additional info before the *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** line?

[jobernolte]

Also, can you check if there is additional info before the *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** line?

[jobernolte]

@jobernolte Thanks for reporting! At this point I think this is related to either

* the `BoxStore` getting closed while a query is running (either explicitly or due to garbage collection) or

* the used `Box` or `Query` instances getting replaced, invalidating their reference to their native counterpart.

So make sure that your code keeps references to any used ObjectBox classes until code that is using them is finished. Based on the stack traces it appears queries are executed on a background thread. Make sure these threads finish their work (notably cancel any subscriptions) before removing references to ObjectBox classes or explicitly closing them.

I use Query subscriptions a lot (converting to Kotlin Flows). Something like this:

    override fun <T : Any> stream(key: String, type: KType): Flow<T?> {
        return flow { emit(awaitInitialized()) }
            .flatMapLatest {
                val query = box
                    .query(TheEntity_.key.equal(key, QueryBuilder.StringOrder.CASE_SENSITIVE))
                    .build()
                query
                    .subscribe()
                    .toFlow()
                    .onCompletion {
                        query.close()
                    }
            }
            .map { entities ->
                entities.firstOrNull { it.key == key }
            }
            .distinctUntilChanged()
            .map { entity ->
                entity
                    ?.takeIf { !entity.isExpired() }
                    ?.data(type)
            }
    }

Is there anything wrong with this code?

[greenrobot]

Is there anything wrong with this code?

@greenrobot-team can have a closer look.

We applied another 2 safe guards around query internally (e.g. cursor waits for queries), so there's a chance this is fixed with the next release.