Default or static interface method used without --min-sdk-version >= 24

Question

Why do we get this error in Android Studio 3.0 RC1?

 com.android.dx.cf.code.SimException: 
default or static interface method used without --min-sdk-version >= 24

According to the android docs, the feature "Default and static interface methods" is compatible with Any min-sdk version.

I tracked this down to a java-library that calls Comparator.naturalOrder() - which has been added in API level 24.
So I would not expect any error-message at all for this code in a java-library.

When I use the code in my own android-app or lib java code, I see the correct lint message: "Call requires API level 24)"

Is the error-message wrong or am I missing something?

Answer 1

I just found out that it works as expected when I activate the D8 dexer which is planned to be the default for Android Studio 3.1

In the project gradle.properties, add:

android.enableD8=true

Now the code compiles as expected and I still get the expected linter messages.

Answer 2

If the java-library that you're talking about was guava, you can try to upgrade it to the latest android-specific build

implementation 'com.google.guava:guava:23.0-android'

This fixed for me