[PDFBOX-2909] NullPointerException when rendering shading with no function

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.8.10, 1.8.11, 2.0.0
• Fix Version/s: 1.8.11, 2.0.0
• Component/s: Rendering
• Labels: shading shadingpattern
• External issue URL: https://github.com/mozilla/pdf.js/issues/5509
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 29/Jul/15 16:44
• Updated: 18/Jan/16 12:01
• Resolved: 29/Jul/15 17:23

Description

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at org.apache.pdfbox.pdmodel.graphics.shading.PDShading.getFunctionsArray(PDShading.java:354)
        at org.apache.pdfbox.pdmodel.graphics.shading.PDShading.evalFunction(PDShading.java:386)
        at org.apache.pdfbox.pdmodel.graphics.shading.PDShading.evalFunction(PDShading.java:374)
        at org.apache.pdfbox.pdmodel.graphics.shading.AxialShadingContext.calcColorTable(AxialShadingContext.java:151)
        at org.apache.pdfbox.pdmodel.graphics.shading.AxialShadingContext.<init>(AxialShadingContext.java:128)
        at org.apache.pdfbox.pdmodel.graphics.shading.AxialShadingPaint.createContext(AxialShadingPaint.java:67)

Found at https://github.com/mozilla/pdf.js/issues/5509 . The cause of the bug is that we're not throwing an exception for a missing function. Fun fact: Adobe Reader isn't able to display the file correctly, the contents of the yellow box are missing.