Adjust imports and apply some IDE suggestions

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1893211 13f79535-47bb-0310-9956-ffa450edef68

poi-integration/src/test/java/org/apache/poi/stress/TestAllFiles.java

@@ -28,14 +28,14 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
 import java.util.stream.Stream;
 
 import org.apache.poi.hssf.record.crypto.Biff8EncryptionKey;
 import org.apache.tools.ant.DirectoryScanner;
 import org.junit.jupiter.api.function.Executable;
-import org.junit.jupiter.api.parallel.Execution;
-import org.junit.jupiter.api.parallel.ExecutionMode;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;

poi-ooxml/src/main/java/org/apache/poi/xssf/streaming/SXSSFSheet.java

@@ -118,7 +118,7 @@ public class SXSSFSheet implements Sheet
      *
      * @param rownum  row number
      * @return high level Row object representing a row in the sheet
-     * @throws IllegalArgumentException If the max. number of rows is exceeded or 
+     * @throws IllegalArgumentException If the max. number of rows is exceeded or
      *      a rownum is provided where the row is already flushed to disk.
      * @see #removeRow(Row)
      */
@@ -1877,7 +1877,7 @@ public class SXSSFSheet implements Sheet
     {
         Integer firstRowNum = _rows.firstKey();
         if (firstRowNum!=null) {
-            int rowIndex = firstRowNum.intValue();
+            int rowIndex = firstRowNum;
             SXSSFRow row = _rows.get(firstRowNum);
             // Update the best fit column widths for auto-sizing just before the rows are flushed
             _autoSizeColumnTracker.updateColumnWidths(row);