PDFBOX-6187: avoid NPE

THausherr · THausherr · commit a1cfcd526f3f · 2026-04-05T05:08:52.000Z
git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1932850 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/interactive/form/AppearanceGeneratorHelper.java b/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/interactive/form/AppearanceGeneratorHelper.java
@@ -522,7 +522,7 @@ private void insertGeneratedAppearance(PDAnnotationWidget widget,
             {
                 throw new IllegalArgumentException("font is null, check whether /DA entry is incomplete or incorrect");
             }
-            if (font.getName().contains("+"))
+            if (font.getName() != null && font.getName().contains("+"))
             {
                 LOG.warn("Font '{}' of field '{}' contains subsetted font '{}'",
                         defaultAppearance.getFontName().getName(), field.getFullyQualifiedName(),

Original file line number	Diff line number	Diff line change
`@@ -522,7 +522,7 @@ private void insertGeneratedAppearance(PDAnnotationWidget widget,`
`522`	`522`	`{`
`523`	`523`	`throw new IllegalArgumentException("font is null, check whether /DA entry is incomplete or incorrect");`
`524`	`524`	`}`
`525`		`- if (font.getName().contains("+"))`
	`525`	`+ if (font.getName() != null && font.getName().contains("+"))`
`526`	`526`	`{`
`527`	`527`	`LOG.warn("Font '{}' of field '{}' contains subsetted font '{}'",`
`528`	`528`	`defaultAppearance.getFontName().getName(), field.getFullyQualifiedName(),`