使用POI3.10里的在word里插入图片的例子，生成的word打不开报错，如何解决

Question

XWPFDocument doc = new XWPFDocument();//获取文档信息
XWPFParagraph p = doc.createParagraph();
ArrayList list=new ArrayList();
list.add("C:\Users\lu\Desktop\PoiSample\image\1.png");
list.add("C:\Users\lu\Desktop\PoiSample\image\2.png");
XWPFRun r = p.createRun();
for(String imgFile : list) {
int format;
if(imgFile.endsWith(".emf")) format = XWPFDocument.PICTURE_TYPE_EMF;
else if(imgFile.endsWith(".wmf")) format = XWPFDocument.PICTURE_TYPE_WMF;
else if(imgFile.endsWith(".pict")) format = XWPFDocument.PICTURE_TYPE_PICT;
else if(imgFile.endsWith(".jpeg") || imgFile.endsWith(".jpg")) format = XWPFDocument.PICTURE_TYPE_JPEG;
else if(imgFile.endsWith(".png")) format = XWPFDocument.PICTURE_TYPE_PNG;
else if(imgFile.endsWith(".dib")) format = XWPFDocument.PICTURE_TYPE_DIB;
else if(imgFile.endsWith(".gif")) format = XWPFDocument.PICTURE_TYPE_GIF;
else if(imgFile.endsWith(".tiff")) format = XWPFDocument.PICTURE_TYPE_TIFF;
else if(imgFile.endsWith(".eps")) format = XWPFDocument.PICTURE_TYPE_EPS;
else if(imgFile.endsWith(".bmp")) format = XWPFDocument.PICTURE_TYPE_BMP;
else if(imgFile.endsWith(".wpg")) format = XWPFDocument.PICTURE_TYPE_WPG;
else {
System.err.println("Unsupported picture: " + imgFile +
". Expected emf|wmf|pict|jpeg|png|dib|gif|tiff|eps|bmp|wpg");
continue;
}
r.setText(imgFile);
r.addBreak();
r.addPicture(new FileInputStream(imgFile), format, imgFile, Units.toEMU(200), Units.toEMU(200));
r.addBreak(BreakType.PAGE);
}
FileOutputStream out = new FileOutputStream("images.docx");
doc.write(out);
out.close();