XSSF not able to copy style (POI)

XSSF not able to copy style (POI)

Not able to copy from .xlsx file to another.
Here is the code that I am using.
public static void copyCell(XSSFCell oldCell, XSSFCell newCell, Map
styleMap) {
if(styleMap != null) {
if(oldCell.getSheet().getWorkbook() .equals(
newCell.getSheet().getWorkbook())){
newCell.setCellStyle(oldCell.getCellStyle());
} else{
int stHashCode = oldCell.getCellStyle().hashCode();
XSSFCellStyle newCellStyle = styleMap.get(stHashCode);
if(newCellStyle == null){
newCellStyle =
newCell.getSheet().getWorkbook().createCellStyle();
newCellStyle.cloneStyleFrom(oldCell.getCellStyle());
styleMap.put(stHashCode, newCellStyle);
}
newCell.setCellStyle(newCellStyle);
}
}
switch(oldCell.getCellType()) {
case XSSFCell.CELL_TYPE_STRING:
newCell.setCellValue(oldCell.getStringCellValue());
break;
case XSSFCell.CELL_TYPE_NUMERIC:
newCell.setCellValue(oldCell.getNumericCellValue());
break;
case XSSFCell.CELL_TYPE_BLANK:
newCell.setCellType(XSSFCell.CELL_TYPE_BLANK);
break;
case XSSFCell.CELL_TYPE_BOOLEAN:
newCell.setCellValue(oldCell.getBooleanCellValue());
break;
case XSSFCell.CELL_TYPE_ERROR:
newCell.setCellErrorValue(oldCell.getErrorCellValue());
break;
case XSSFCell.CELL_TYPE_FORMULA:
newCell.setCellFormula(oldCell.getCellFormula());
break;
default:
break;
}
}
Same works with HSSF i.e for .xls file but doesn't work with XSSF (.xlsx)
Please give some suggestions or sample code to solve this.