#vulnerable code 
                                @Override
    protected void afterRender(RenderContext context) {
        XWPFRun run = ((RunTemplate) context.getEleTemplate()).getRun();
        clearPlaceholder(context);
        IRunBody parent = run.getParent();
        if (parent instanceof XWPFParagraph) {
            ((XWPFParagraph) parent).removeRun(((RunTemplate) context.getEleTemplate()).getRunPos());
            // To do: 更好的列表样式
            // ((XWPFParagraph) parent).setSpacingBetween(0,
            // LineSpacingRule.AUTO);
        }
    } 
                            #location 7 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Override
    protected void afterRender(RenderContext context) {
        clearPlaceholder(context, true);
//        IRunBody parent = run.getParent();
//        if (parent instanceof XWPFParagraph) {
//            ((XWPFParagraph) parent).removeRun(((RunTemplate) context.getEleTemplate()).getRunPos());
//            // To do: 更好的列表样式
//            // ((XWPFParagraph) parent).setSpacingBetween(0,
//            // LineSpacingRule.AUTO);
//        }
    }