PDFBOX-6143: avoid NPE

THausherr · THausherr · commit cd25b4e0be08 · 2026-01-09T15:28:06.000Z
git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1931197 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/interactive/form/PDAcroForm.java b/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/interactive/form/PDAcroForm.java
@@ -28,6 +28,7 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 
 import org.apache.logging.log4j.Logger;
@@ -483,7 +484,7 @@ public PDField getField(String fullyQualifiedName)
         // get the field from the field tree
         for (PDField field : getFieldTree())
         {
-            if (field.getFullyQualifiedName().equals(fullyQualifiedName))
+            if (Objects.equals(field.getFullyQualifiedName(), fullyQualifiedName))
             {
                 return field;
             }

Original file line number	Diff line number	Diff line change
`@@ -28,6 +28,7 @@`
`28`	`28`	`import java.util.Iterator;`
`29`	`29`	`import java.util.List;`
`30`	`30`	`import java.util.Map;`
	`31`	`+import java.util.Objects;`
`31`	`32`	`import java.util.Set;`
`32`	`33`
`33`	`34`	`import org.apache.logging.log4j.Logger;`
`@@ -483,7 +484,7 @@ public PDField getField(String fullyQualifiedName)`
`483`	`484`	`// get the field from the field tree`
`484`	`485`	`for (PDField field : getFieldTree())`
`485`	`486`	`{`
`486`		`- if (field.getFullyQualifiedName().equals(fullyQualifiedName))`
	`487`	`+ if (Objects.equals(field.getFullyQualifiedName(), fullyQualifiedName))`
`487`	`488`	`{`
`488`	`489`	`return field;`
`489`	`490`	`}`