[PDFBOX-5402] POCIDFontType2 (Wingdings) encode throws a NullPointerException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.21, 2.0.22, 2.0.23, 2.0.24, 2.0.25
• Fix Version/s: 2.0.26, 3.0.0 PDFBox
• Component/s: FontBox
• Environment: PDFBox 2.0.25 used via a gradle plugin (has been tested as far back as PDFBox 2.0.21)
• Assignee: Tilman Hausherr
• Reporter: Matthew Bayer
• Created: 25/Mar/22 19:25
• Updated: 21/Apr/22 15:38
• Resolved: 26/Mar/22 04:22

Description

Problem;

• It is known that wingdings based fonts do not support encoding from https://issues.apache.org/jira/browse/PDFBOX-4714. However it is unexpected that a call to encode on a wingdings POCIDFontType2 returns a NullPointerException.

Notes:

• The issue seems to lie within PDFont POCIDFontType2
• The POCIDFontType2 encode function is only known to throw IOException or UnsupportedOperationException(s)
• Please see the attached test file with the font in question that causes the NullPointerException to be thrown
• Stacktrace: 

  java.lang.NullPointerException
  	at org.apache.pdfbox.pdmodel.font.PDCIDFontType2.encode(PDCIDFontType2.java:359)
  	at org.apache.pdfbox.pdmodel.font.PDType0Font.encode(PDType0Font.java:424)
  	at org.apache.pdfbox.pdmodel.font.PDFont.encode(PDFont.java:333)