import java.util.stream.Collectors;
import static org.hamcrest.CoreMatchers.containsString;
-import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
import static org.springframework.http.HttpStatus.BAD_REQUEST;
import static org.springframework.http.HttpStatus.METHOD_NOT_ALLOWED;