Created attachment 27235 [details]
Excel file for reproducing the issue

Trying to add an image to a worksheet does not actually work in the case of the attached Excel file (repro.xls). There is no error message - the image just won't end up on the worksheet. I could pin the problem down to the second worksheet (note, the image is to be added to first one). If I delete the second worksheet, it works. Originally, there were many more worksheets in the workbook and I tried deleting any of them in succession to detect where the issue is and it seems that exactly the remaining (worksheet 2 in repro.xls) is causing the grief.

The following is the code to reproduce the issue:

File f1 = new File("repro.xls");
        File f2 = new File("earthquake.jpg");

        HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(f1));
        InputStream is = new FileInputStream(f2);
        byte[] bytes = IOUtils.toByteArray(is);
        int imageIndex = wb.addPicture(bytes, org.apache.poi.ss.usermodel.Workbook.PICTURE_TYPE_JPEG);
        is.close();

        Name cname = wb.getName("Test");
        Sheet sheet = wb.getSheet(cname.getSheetName());

        AreaReference aref = new AreaReference(cname.getRefersToFormula());
        CellReference topLeft = aref.getFirstCell();
        CellReference bottomRight = aref.getLastCell();

        Drawing drawing = null;
        drawing = ((HSSFSheet)sheet).getDrawingPatriarch();
        if(drawing == null) {
            drawing = sheet.createDrawingPatriarch();
        }

        CreationHelper helper = wb.getCreationHelper();
        ClientAnchor anchor = helper.createClientAnchor();
        anchor.setRow1(topLeft.getRow());
        anchor.setCol1(topLeft.getCol());
        anchor.setRow2(bottomRight.getRow() + 1);
        anchor.setCol2(bottomRight.getCol() + 1);
        anchor.setAnchorType(ClientAnchor.DONT_MOVE_AND_RESIZE);

        drawing.createPicture(anchor, imageIndex);

        FileOutputStream fos = new FileOutputStream(f1, false);
        wb.write(fos);
        fos.close();


I'm using POI 3.8-beta3 with a 64-bit JDK 1.6.0_20 on Windows 7 64-bit.