IssueTracker

Background

I've observed that incorrect bytecode is being generated non-deterministically. Specifically, static methods of a Kotlin object are incorrectly invoked virtually.

I've shared the APK/mapping files already with Soren in the google drive folder named issue-161727616 with the apks named prodBad.apk and prodGood.apk.

These APKs were built on the exact same SHA. Between the two APKs only the following classes were different: S85, SZd and e0e.

Below is the relevant sections of code that caused the issue:

# SZd
# method public g(LiSd;LiSd;LORd;LLSd;LPZh;LQZh;LKZh;LLZh;)V
    ...
    if-eq p3, p4, :cond_3b

    # This field is always null
    sget-object p4, Le0e;->a:Le0e;

    # This method is static
    invoke-virtual {p4, p1}, Le0e;->b(LiSd;)Lb6i;

    move-result-object v0
    
    # This method is static
    invoke-virtual {p4, v0}, Le0e;->i(Lb6i;)Z

    move-result v0
    ...

###### Class defpackage.e0e (e0e)
.class public abstract Le0e;
.super Ljava/lang/Object;

# This static field is not found in the "good" APK
# static fields
.field public static final a:Le0e;


# direct methods

...

.method public static final b(LiSd;)Lb6i;
    .registers 4

    ...

.end method

.method public static final i(Lb6i;)Z
    .registers 3

    ...

.end method

...