Type3Font object returns empty FontNames object

DEVSIX-5803

Author: vitali.prudnikovich

io/src/main/java/com/itextpdf/io/font/FontNames.java

@@ -242,6 +242,6 @@ private String[][] listToArray(List<String[]> list) {
     @Override
     public String toString() {
         String name = getFontName();
-        return name.length() > 0 ? name : super.toString();
+        return name != null && name.length() > 0 ? name : super.toString();
     }
 }

io/src/main/java/com/itextpdf/io/font/FontProgram.java

@@ -316,6 +316,6 @@ protected void fixSpaceIssue() {
     @Override
     public String toString() {
         String name = getFontNames().getFontName();
-        return name.length() > 0 ? name : super.toString();
+        return name != null && name.length() > 0 ? name : super.toString();
     }
 }