[PDFBOX-5689] Many new warnings "newGlyph ... newValue: ... is trying to override the oldValue" after upgrade to V3.0.0

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0 PDFBox
• Fix Version/s: 3.0.1 PDFBox, 4.0.0
• Component/s: FontBox
• Assignee: Tilman Hausherr
• Reporter: Jorge moraleda
• Created: 30/Sep/23 16:29
• Updated: 30/Nov/23 21:19
• Resolved: 30/Sep/23 19:16

Description

I upgraded a maven project from PDFBox 2.x to 3.0.0. I am running Linux Debian stable up to date.

Now on initialization, many (hundreds, thousands?) warnings lines appear of the form:

o.a.f.t.g.GlyphSubstitutionDataExtractor : For the newGlyph: 573, newValue: [556, 600, 563] is trying to override the oldValue: 573

The actual numbers are different in each warning.

The severity is low, since the application still works, but I wonder if thousands of these warnings is really a desirable behavior. I assume the problem is with some font(s) I have installed in my system but even so, the warnings did not appear on PDFBox 2.x.