import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
-import javax.annotation.Nonnull;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
}
@Override
- public void onDataTreeChanged(@Nonnull final Collection<DataTreeCandidate> changes) {
+ public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
receivedChanges.add(changes);
latch.countDown();
}