Background

Upgrading from 2.0.73 to 2.1.52 seems to have introduced a weird non-deteriministic crash, which doesn't reproduce on every build. The crash is accessing a field Companion which has been renamed. I've included the bytecode below, but I can also share the APK if that helps.

Stacktrace

     Caused by: java.lang.NoSuchFieldError: No field Companion of type LNc8; in class LOc8; or its superclasses (declaration of 'Oc8' appears in /data/app/~~Zxau8Ly3WV_G5JpK18jf_Q==/com.snapchat.android.master-WJLCKfkCvr8vk-voXrCALg==/base.apk!classes4.dex)
        at Mx.invoke(kotlin-style lambda group:86)
        at Eek.getValue(Unknown Source:20)
        at Tc8.a(Unknown Source:2)

Mapping:

com.snap.inappreporting.core.config.behavior.ReasonFeedbackBehavior -> Oc8:
    com.snap.inappreporting.core.config.behavior.ReasonFeedbackBehavior$Companion Companion -> m

com.snap.inappreporting.core.config.behavior.ReasonFeedbackBehavior$Companion -> Nc8:
    com.snap.inappreporting.core.config.behavior.ReasonFeedbackBehavior getNONE() -> a

Bytecode

// Mx.invoke(kotlin-style lambda group(:86)
   .line 86
    :pswitch_509
    new-instance v1, LGc8;
    // this should be renamed to `m`
    sget-object v3, LOc8;->Companion:LNc8;

    invoke-virtual {v3}, LNc8;->a()LOc8;

    move-result-object v12

    sget-object v3, LQc8;->d:LPc8;

    invoke-virtual {v3, v2}, LPc8;->a(Ljava/lang/String;)LQc8;

    move-result-object v13

    const v9, 0x7f130d8e

    const/4 v11, 0x0

    const-string v10, "10345768235"

    move-object v8, v1

    invoke-direct/range {v8 .. v13}, LGc8;-><init>(ILjava/lang/String;ZLOc8;LQc8;)V

// Oc8
.class public final LOc8;
.super Ljava/lang/Object;


# static fields
.field public static final c:Lwek;

.field public static final d:Lwek;

.field public static final e:Lwek;

.field public static final f:Lwek;

.field public static final g:Lwek;

.field public static final h:Lwek;

.field public static final i:Lwek;

.field public static final j:Lwek;

.field public static final k:Lwek;

.field public static final l:Lwek;

// This should be type `LNc8`
.field public static final m:LOc8;


# instance fields
.field public final a:I

.field public final b:LMc8;

// ...

// Nc8
.class public abstract LNc8;
.super Ljava/lang/Object;


# direct methods
.method public static final a()LOc8;
    .registers 1

    const/4 v0, 0x0

    throw v0
.end method

Java Code

enum class FeedbackDialogueType {
    NONE,
    DEFAULT,
    LEARN_MORE,
    BLOCK_ONLY,
    REMOVE_OR_BLOCK
}

class ReasonFeedbackBehavior private constructor(
    @StringRes val feedbackResId: Int,
    val dialogueType: FeedbackDialogueType
) {
    companion object {

        val NONE: ReasonFeedbackBehavior by lazy {
            ReasonFeedbackBehavior(-1, FeedbackDialogueType.NONE) }

        val RD: ReasonFeedbackBehavior by lazy {
            ReasonFeedbackBehavior(R.string.report_feedback_rd, FeedbackDialogueType.DEFAULT) }

       // More of these...
}

class ReportReasonItems private constructor() {
    companion object {

        val GENERAL_FRAUDULENT_INFORMATION: ReportReasonItem by lazy {
            ReportReasonItem(
                R.string.reason_fraudulent_information,
                ReportReasonServerId.GENERAL_FRAUDULENT_INFORMATION,
                requiresContext = false, feedbackBehavior = ReasonFeedbackBehavior.NONE,
                submissionBehavior = ReasonSubmissionBehavior.withWebView(
                    webViewUrl = "https://support.snapchat.com/i-need-help?start=5685771749294080"))
        }

        val LENS_THIS_LENS_IS_INAPPROPRIATE: ReportReasonItem by lazy {
            ReportReasonItem(
                    R.string.reason_lens_this_lens_is_inappropriate,
                    ReportReasonServerId.LENS_THIS_LENS_IS_INAPPROPRIATE,
                    requiresContext = true, feedbackBehavior = ReasonFeedbackBehavior.RG)
        }
       // More of these...
}