The following 3 lint issue(s) are suppressed in src/main/java/androidx/arch/core/executor/testing/CountingTaskExecutorRule.java. Please remove these suppressions in arch/core/core-testing/lint-baseline.xml and address the associated issues.

Line number: 41
Lint check ID: UnknownNullness
Lint message: Unknown nullability; explicitly declare as `@Nullable` or `@NonNull` to improve Kotlin interoperability; see https://developer.android.com/kotlin/interop#nullability_annotations


    protected void starting(Description description) {
                            ~~~~~~~~~~~

Line number: 57
Lint check ID: UnknownNullness
Lint message: Unknown nullability; explicitly declare as `@Nullable` or `@NonNull` to improve Kotlin interoperability; see https://developer.android.com/kotlin/interop#nullability_annotations


    protected void finished(Description description) {
                            ~~~~~~~~~~~

Line number: 111
Lint check ID: UnknownNullness
Lint message: Unknown nullability; explicitly declare as `@Nullable` or `@NonNull` to improve Kotlin interoperability; see https://developer.android.com/kotlin/interop#nullability_annotations


    public void drainTasks(int time, TimeUnit timeUnit)
                                     ~~~~~~~~