Unrecognized Kotlin lambda ... does not implement any interfaces [177337814]

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Bug

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Description

[Deleted User]

created issue #1

Jan 13, 2021 02:17PM

R8 Version: 2.1.75

When I minify my project I get a warning saying:

Unrecognized Kotlin lambda [okhttp3.internal.Util$asFactory$1]: does not implement any interfaces

This warning cannot be disabled. This is the file in question: https://github.com/square/okhttp/blob/master/okhttp/src/main/kotlin/okhttp3/internal/Util.kt#L302

Comments

ch...@google.com <ch...@google.com> #2Jan 13, 2021 02:22PM

Reassigned to ch...@google.com.

Are you building using gradle or are you calling R8 on the command line?

The above is not a warning, but an info, and should therefore not be present in Android Studio unless you're explicitly building using --info.

[Deleted User] <[Deleted User]> #3Jan 13, 2021 02:30PM

I'm using Gradle but I'm calling it from command line manually.

Using -dontnote okhttp3.internal.** does not work either.

ap...@google.com <ap...@google.com> #4Jan 21, 2021 05:49PM

Project: r8
Branch: master

commit 1608ec85c0482235163067c57620bdb9a32e56d3
Author: Christoffer Quist Adamsen <christofferqa@google.com>
Date: Thu Jan 21 15:38:38 2021

Respect -dontnote in lambda merger

Bug: 177337814
Change-Id: If49b11068b0d6ea5d1875d4e1b85a1badb798f05

M src/main/java/com/android/tools/r8/ir/optimize/lambda/LambdaMerger.java

https://r8-review.googlesource.com/57283

ap...@google.com <ap...@google.com> #5Jan 22, 2021 03:28PM

Project: r8
Branch: 2.2

commit 6043955e45aba1088633c5d38268b424f8eb1085
Author: Christoffer Quist Adamsen <christofferqa@google.com>
Date: Fri Jan 22 14:44:10 2021

Version 2.2.51

Bug: 177337814
Bug: 175201530
Bug: 178045782
Change-Id: I2d11659e471dfb87e2b1ccc05a62e513c4b63e7f

M src/main/java/com/android/tools/r8/Version.java

https://r8-review.googlesource.com/57308

ap...@google.com <ap...@google.com> #6Jan 22, 2021 03:28PM

Project: r8
Branch: 2.2

commit b976fb234a863c46d79cf8c36f67e2dac58e7271
Author: Christoffer Quist Adamsen <christofferqa@google.com>
Date: Fri Jan 22 14:42:15 2021

Respect -dontnote in lambda merger

Bug: 177337814
Change-Id: If49b11068b0d6ea5d1875d4e1b85a1badb798f05

M src/main/java/com/android/tools/r8/ir/optimize/lambda/LambdaMerger.java

https://r8-review.googlesource.com/57307

ap...@google.com <ap...@google.com> #7Jan 26, 2021 06:07AM

Project: r8
Branch: 2.1

commit 8fee928fbd1bb89d6e103c28150a39b8fc392ebb
Author: Christoffer Quist Adamsen <christofferqa@google.com>
Date: Tue Jan 26 06:36:47 2021

Version 2.1.88

Bug: 177337814
Change-Id: I73fda63882f9f29379843e30497a335b1294e737

M src/main/java/com/android/tools/r8/Version.java

https://r8-review.googlesource.com/57401

ap...@google.com <ap...@google.com> #8Jan 26, 2021 06:07AM

Project: r8
Branch: 2.1

commit b3349b7a66467cad8681ad480664a04a54bae58e
Author: Christoffer Quist Adamsen <christofferqa@google.com>
Date: Tue Jan 26 06:35:09 2021

Respect -dontnote in lambda merger

Bug: 177337814
Change-Id: If49b11068b0d6ea5d1875d4e1b85a1badb798f05

M src/main/java/com/android/tools/r8/ir/optimize/lambda/LambdaMerger.java

https://r8-review.googlesource.com/57400

ch...@google.com <ch...@google.com> #9Jan 26, 2021 06:13AM

Verified by ch...@google.com.

Starting from R8 version 2.1.88 and 2.2.51 the info diagnostic should no longer be reported with the -dontnote rule that you tried.

You can upgrade from 2.1.75 to 2.1.88 by making the following changes to build.gradle:

buildscript {
    repositories {
        maven {
            url 'https://storage.googleapis.com/r8-releases/raw'
        }
    }
    dependencies {
        classpath 'com.android.tools:r8:2.1.88'          // Must be before the Gradle Plugin for Android.
        classpath 'com.android.tools.build:gradle:X.Y.Z' // Your current AGP version.
     }
}

Please don't hesitate to let us know if this does not resolve the issue.