PDFBOX-5917: when offset points to end of the stream then it's empty

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1922270 13f79535-47bb-0310-9956-ffa450edef68

fontbox/src/main/java/org/apache/fontbox/ttf/GlyphTable.java

@@ -138,11 +138,12 @@ GlyphData getGlyph(int gid, int level) throws IOException
             // read a single glyph
             long[] offsets = loca.getOffsets();
 
-            if (offsets[gid] == offsets[gid + 1])
+            if (offsets[gid] == offsets[gid + 1] || offsets[gid] == data.getOriginalDataSize())
             {
                 // no outline
                 // PDFBOX-5135: can't return null, must return an empty glyph because
                 // sometimes this is used in a composite glyph.
+                // PDFBOX-5917: offset points to end of the stream
                 glyph = new GlyphData();
                 glyph.initEmptyData();
             }