Polishing
Remove unused imports.
Original pull request:
@@ -23,7 +23,6 @@ import org.assertj.core.api.Assertions.assertThat
import org.assertj.core.api.Assertions.assertThatExceptionOfType
import org.junit.Test
import reactor.core.publisher.Mono
-import java.lang.NullPointerException
/**
* Unit tests for [RowsFetchSpec] extensions.
