[PDFBOX-4164] NPE in PDFDebugger when expanding page subtree

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.8, 2.0.9
• Fix Version/s: 2.0.10, 3.0.0 PDFBox
• Component/s: Utilities
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 23/Mar/18 17:18
• Updated: 21/Jun/18 20:27
• Resolved: 23/Mar/18 17:22

Description

When clicking on "+" to show a page from the file from
https://github.com/mozilla/pdf.js/issues/9597 :

java.lang.NullPointerException: null
    org.apache.pdfbox.debugger.ui.PDFTreeCellRenderer.toTreePostfix(PDFTreeCellRenderer.java:214)
    org.apache.pdfbox.debugger.ui.PDFTreeCellRenderer.toTreeObject(PDFTreeCellRenderer.java:121)
    org.apache.pdfbox.debugger.ui.PDFTreeCellRenderer.getTreeCellRendererComponent(PDFTreeCellRenderer.java:77)
    java.security.AccessController.doPrivileged(Native Method)
    java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
    java.security.AccessController.doPrivileged(Native Method)
    java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)

The cause is a broken PDF with a /Subtype that is not a name. I'll fix that and do the same for /Type.