title: What to use instead of deprecated CellRangeAddress.valueOf in ApachePOI
body: <p>I wanted to add conditional formatting in the region but One method which I saw in tutorial is deprecated. What to use instead of it.
  Sample:</p>
  
  <pre><code>ConditionalFormattingRule rule2 = sheetCF.createConditionalFormattingRule(ComparisonOperator.LT, "50");
      PatternFormatting fill2 = rule2.createPatternFormatting();
      fill2.setFillBackgroundColor(IndexedColors.GREEN.index);
      fill2.setFillPattern(PatternFormatting.SOLID_FOREGROUND);
  
      CellRangeAddress[] regions = {
              CellRangeAddress.valueOf("A1:A6") //DEPRECATED
      };
      sheetCF.addConditionalFormatting(regions, rule);
  </code></pre>