getFonts returns an empty Collection when fonts exists

[ta...@insb.uscourts.gov]

I have a PDF that shows fonts when pressing Ctrl+D from Adobe or running 
pdffonts.  Below is the output from pdffonts:

name                                 type              emb sub uni object 
ID
------------------------------------ ----------------- --- --- --- 
---------
Error: Unknown character collection 'PDFXC30-Indentity0'
Verdana-Bold                         TrueType          no  no  no       6 
0
Verdana                              TrueType          no  no  no       8 
0
Arial-BoldMT                         TrueType          no  no  no      10 
0
OVQEVK+Wingdings-Regular             CID TrueType      yes yes no      13 
0
ArialMT                              TrueType          no  no  no      15 
0
Error: Unknown character collection 'PDFXC30-Indentity0'
Error: Unknown character collection 'PDFXC30-Indentity0'
Error: Unknown character collection 'PDFXC30-Indentity0'
Verdana-Italic                       TrueType          no  no  no      32 
0

In a Java program using PDFBox, the following line is used to obtain a 
Collection of fonts:

loLoop2 = loPdfPage.findResources().getFonts().values().iterator();

For some reason, the Collection is always empty for all pages in the PDF 
file.  Is there something that I am doing wrong?  The above line works on 
other PDFs.  To make sure that the Collection is empty, I added the 
following code:

if (loPdfPage.findResources().getFonts().isEmpty())
  System.out.println("isEmpty");

The program prints "isEmpty" for every page.

Thanks for your help!
Tim