Uncaught Kotlin exception: kotlin.IndexOutOfBoundsException:

[frankois944]

Platform

Apple

Installed

None

Version

Sentry KMP : 0.17.1
Sentry iOS : 8.53.2
Kotlin : 2.1.21
iOS : 18.5

Steps to Reproduce

Hello,

I'm using Kermit as intermediate to send exception to Sentry with this method Sentry.captureException(throwable).

In some cases, the app currently crash from the Sentry library.

Expected Result

The stack must be correctly translated and not crash.

Actual Result

In some case, the stack can't be translated by sentry and throw this following error.

I can't give you a reproducer as it's my job's project.

Uncaught Kotlin exception: kotlin.IndexOutOfBoundsException: index: -1, size: 27
    at 0   Shared                              0x10a361aeb        kfun:kotlin.Throwable#<init>(kotlin.String?){} + 99 
    at 1   Shared                              0x10a35b88f        kfun:kotlin.Exception#<init>(kotlin.String?){} + 95 
    at 2   Shared                              0x10a35ba5f        kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 95 
    at 3   Shared                              0x10a35c1bf        kfun:kotlin.IndexOutOfBoundsException#<init>(kotlin.String?){} + 95 
    at 4   Shared                              0x10a42d037        kfun:kotlin.collections.AbstractList.Companion#checkElementIndex(kotlin.Int;kotlin.Int){} + 515 
    at 5   Shared                              0x10a3bd51f        kfun:kotlin.collections.ArrayList#get(kotlin.Int){}1:0 + 191 
    at 6   Shared                              0x10a492f83        kfun:kotlin.collections.List#get(kotlin.Int){}1:0-trampoline + 107 
    at 7   Shared                              0x10a993fdb        kfun:io.sentry.kotlin.multiplatform.nsexception#dropCommonAddresses__at__kotlin.collections.List<kotlin.Long>(kotlin.collections.List<kotlin.Long>){}kotlin.collections.List<kotlin.Long> + 483 
    at 8   Shared                              0x10a9938fb        kfun:io.sentry.kotlin.multiplatform.nsexception#getFilteredStackTraceAddresses__at__kotlin.Throwable(kotlin.Boolean;kotlin.collections.List<kotlin.Long>){}kotlin.collections.List<kotlin.Long> + 567 
    at 9   Shared                              0x10a98e217        kfun:io.sentry.kotlin.multiplatform.nsexception#asNSException__at__kotlin.Throwable(kotlin.Boolean){}platform.Foundation.NSException + 1715 
    at 10  Shared                              0x10a97ef57        kfun:io.sentry.kotlin.multiplatform.SentryBridge#captureException(kotlin.Throwable){}io.sentry.kotlin.multiplatform.protocol.SentryId + 295 
    at 11  Shared                              0x10a99742b        kfun:io.sentry.kotlin.multiplatform.Sentry#captureException(kotlin.Throwable){}io.sentry.kotlin.multiplatform.protocol.SentryId + 175 
    at 12  Shared                              0x10a32fc07        kfun:fr.creditagricole.macarte.shared.utils.logger.SentryLogger#log(co.touchlab.kermit.Severity;kotlin.String;kotlin.String;kotlin.Throwable?){} + 1031 
    at 13  Shared                              0x10a86cd5b        kfun:co.touchlab.kermit.LogWriter#log(co.touchlab.kermit.Severity;kotlin.String;kotlin.String;kotlin.Throwable?){}-trampoline + 83 
    at 14  Shared                              0x10a86a3c7        kfun:co.touchlab.kermit.BaseLogger#processLog(co.touchlab.kermit.Severity;kotlin.String;kotlin.Throwable?;kotlin.String){} + 571 

[linear]

KMP-64 Uncaught Kotlin exception: kotlin.IndexOutOfBoundsException:

[frankois944]

Even if the library can't send the event; please make the app not crash.

[buenaflor]

@frankois944 thanks for the issue. will investigate this

[frankois944]

@buenaflor FYI, The crash happen inside a complex channelFlow.

My workaround is to launch the logs inside another coroutine context, like launch(Dispatchers.Main) {}

Ping @rickclephas as the crash come from NSExceptionKt sources.

[buenaflor]

It looks like the crash happens in dropCommonAddresses so for now I'll adjust the function to be safely implemented without crashing

[frankois944]

Thanks,

I guess the stack trace is too complex to be cleaned.

Running the Sentry.captureException in another context avoid the crash and send the event correctly.

[rickclephas]

Thanks for the ping @frankois944, just fixed this in NSExceptionKt 🙏🏻