The following code in XDDFChart.createData: 
if (ChartTypes.PIE != type && ChartTypes.PIE3D != type) {
            categories = Collections.singletonMap(category.getId(), category);
            mapValues = Collections.singletonMap(values.getId(), values);
        }

It will make error when ChartTypes is DOUGHNUT because axes area needed here.But if I do this,the docx file will not be opened.

The right condition is:
ChartTypes.PIE != type && ChartTypes.PIE3D != type && ChartTypes.DOUGHNUT !=null


Now I solve the problem by deleting all the axes after creating chart.