title: setBoldweight is not working
body: <p>I was trying to add some styles to the excel sheet, I have generated using apache poi. Here is the code, I tried to make the first row in BOLD.</p>
  
  <pre><code>    SXSSFWorkbook wb=new SXSSFWorkbook();
      Sheet sheet = wb.createSheet("Excelx");
  
      Row row= sheet.createRow((short)0);
      row.createCell((short) 0).setCellValue("SRNum");
      row.createCell((short) 1).setCellValue("Name");         
      CellStyle cs = wb.createCellStyle();
      Font f = wb.createFont();
      f.setFontHeightInPoints((short) 20);
      f.setBoldweight(Font.BOLDWEIGHT_BOLD);
      cs.setFont(f);
      row.setRowStyle(cs);
  </code></pre>
  
  <p>But still, the first row is not changing to BOLD.</p>