PDFBOX-2941, PDFBOX-5963: find another font name if null

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1924029 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

debugger/src/main/java/org/apache/pdfbox/debugger/fontencodingpane/Type3Font.java

@@ -64,7 +64,12 @@ class Type3Font extends FontPane
         Object[][] tableData = getGlyphs(font);
 
         Map<String, String> attributes = new LinkedHashMap<>();
-        attributes.put("Font", font.getName());
+        String name = font.getName();
+        if (name == null && font.getFontDescriptor() != null)
+        {
+            name = font.getFontDescriptor().getFontName();
+        }
+        attributes.put("Font", name);
         attributes.put("Encoding", getEncodingName(font));
         attributes.put("Glyphs", Integer.toString(totalAvailableGlyph));