Using Precondition.checkNotNull() in Android Studio 3.0 gives lint error

Question

I have recently updated my Android Studio to 3.0. I tried using Preconditions.checkNotNull() but it shows an error with following message.

Preconditions.checkNotNull() can only be called from within the same library group (groupId=com.android.support).

I searched some other links and found something similar happening when older support library versions were rolled out.

Suggested answers tells me to disable lint warnings but I don't think it's the right thing to do in the long run.

Any explanation on why this particular error shows up?

That's an internal API, which is not available publicly, you cannot/shouldn't use that (without using reflection of course). — azizbekian, Nov 20 '17 at 11:42
I thought so. It is available in android.support.v4.util package while I assume is available for us to use right? — Sahil Patel, Nov 20 '17 at 11:52
@Lino, it can only be used for targetSdkVersion 19 or greater right. I need somthing backwards compatible till api level 16.Only If there is something. — Sahil Patel, Nov 20 '17 at 12:32
import static com.google.common.base.Preconditions.checkNotNull; — Lou Morda, Nov 29 '18 at 22:24

score 0 · Answer 1 · answered Jul 28 '19 at 21:36

0

Use androidx instead.

import androidx.core.util.Preconditions;

ref = Preconditions.checkNotNull(anotherRef);

answered Jul 28 '19 at 21:36

Zsolt Safrany

Getting error for this also. "Preconditions can only be called from within the same library group prefix (referenced groupId=androidx.core " – sandeep549 May 18 '21 at 17:16

score 0 · Answer 2 · answered Jun 21 '21 at 03:41

0

You can use the inline function:

requireNotNull

This does not show a warning like Preconditions.checkNotNull(ref)

answered Jun 21 '21 at 03:41

Otieno Rowland

2 Answers2