How to tell if a font is embedded

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

I have a Java program, using PDFBox, that scans through a PDF for 
unsupported fonts.  The support fonts are in a Collection called 
this.oFont.  I only need to compare fonts that are not embedded.  Is there 
a way in PDFBox to determine if a font is embedded?  Currently, the 
program is checking for a plus sign ("+") in the base font.  If a plus 
sign is found, the font is assumed to be embedded.  Below is a chunk of 
Java code to scan a PDF for fonts:

      loLoop1 = loPdfCatalog.getAllPages().iterator();
                                                 // Iterator object for 
all pages in catalog
      while(loLoop1.hasNext()) {                 // Process PDF pages...
        ++lnPdfPage;                             // Process next page
        loPdfPage = (PDPage) loLoop1.next();     // Get PDF page object

  ////// Check for unsupported fonts
        lcRecCode = REC_FONT;                    // Validating fonts
        if (RestrictPDF(lcRecCode)) {            // If OK to validate 
fonts...
          loLoop2 = 
loPdfPage.findResources().getFonts().values().iterator();
                                                 // Iterator object for 
fonts on page
          while(loLoop2.hasNext()) {             // Process fonts on 
page...
            lcPdfFont = ((PDFont) loLoop2.next()).getBaseFont();
                                                 // Get base font
            if (lcPdfFont.indexOf("+") == -1) {  // If font is not 
embedded...
              lcPdfFont = lcPdfFont.replaceAll("\\W.*", "");
                                                 // Remove extra 
information from base font
              if (!this.oFont.contains(lcPdfFont)) {
                                                 // If font is not 
supported...
                HandleError(new Throwable(lcPdfFont), lcRecCode, 
lnPdfPage);
                                                 // Generate an error
                this.oFont.add(lcPdfFont);       // Prevent font from 
being reported again
              }
            }
          }
        }

Thanks in advance for your help!
Tim