snuyanzin commented on code in PR #19897:
URL: https://github.com/apache/flink/pull/19897#discussion_r1006642754


##########
flink-formats/flink-csv/src/test/java/org/apache/flink/formats/csv/CsvFormatFilesystemStatisticsReportTest.java:
##########
@@ -34,16 +34,16 @@
 /**
  * Test for statistics functionality in {@link CsvFormatFactory} in the case 
of file system source.
  */
-public class CsvFormatFilesystemStatisticsReportTest extends 
CsvFormatStatisticsReportTest {
+class CsvFormatFilesystemStatisticsReportTest extends 
CsvFormatStatisticsReportTest {
 
+    @Override
     @BeforeEach
     public void setup(@TempDir File file) throws Exception {

Review Comment:
   nit: since the hierarchy is in different packages package private does not 
work here however probably it could be either changed to `protected` for the 
whole hierarchy or marked like `@VisibleForTestting`



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