PDFBox 2.0 SVN Head: PDStream discontinued

[Roberto Nibali]

Hi

Until last week, the following code worked just fine:

public static String calculateFontSize(PDTextField field) throws IOException {
    PDFStreamParser parser = new PDFStreamParser(new
RandomAccessBuffer(field.getDefaultAppearance().getBytes()));
    parser.parse();
    final List<Object> tokens = parser.getTokens();
    int setFontOperatorIndex = tokens.indexOf(Operator.getOperator("Tf"));
    Integer fontSize = ((COSNumber) tokens.get(setFontOperatorIndex -
1)).intValue();
    /* This specifies that the text appearing on the button by default
should be Courier
       8pts in size or the original size, and the color of the text is
black (0 g = 0 setgray)
     */
    return "/Cour " + (fontSize == 0 ? 8 : fontSize) + " Tf 0 g";
}

Could someone maybe help me out with how the new code should be structured?
The following line:

    PDFStreamParser parser = new PDFStreamParser(new
RandomAccessBuffer(field.getDefaultAppearance().getBytes()));

does not compile anymore. The simple solution is a cast:

    PDFStreamParser parser = new PDFStreamParser((PDContentStream) new
RandomAccessBuffer(field.getDefaultAppearance().getBytes()));

Is this the correct approach? It looks overly twisted.

Thanks and best regards

Roberto