#vulnerable code 
                             @Deprecated
	public CellStyle createStyleForCell(int x, int y) {
		final Cell cell = getOrCreateCell(x, y);
		final CellStyle cellStyle = this.workbook.createCellStyle();
		cell.setCellStyle(cellStyle);
		return cellStyle;
	} 
                            #location 5 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                             @Deprecated
	public CellStyle createStyleForCell(int x, int y) {
		return createCellStyle(x, y);
	}