PDFBOX-5660: add logging

THausherr · THausherr · commit ee1a431dc199 · 2025-11-24T20:25:11.000Z
git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1929951 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pdfbox/src/main/java/org/apache/pdfbox/pdfwriter/compress/COSWriterObjectStream.java b/pdfbox/src/main/java/org/apache/pdfbox/pdfwriter/compress/COSWriterObjectStream.java
@@ -191,6 +191,10 @@ private void writeObject(OutputStream output, COSBase object, boolean topLevel)
                 writeCOSNull(output);
                 return;
             }
+            if (base instanceof COSObject)
+            {
+                LOG.error("COSObject {} references another COSObject?!", object);
+            }
         }
         else
         {

Original file line number	Diff line number	Diff line change
`@@ -191,6 +191,10 @@ private void writeObject(OutputStream output, COSBase object, boolean topLevel)`
`191`	`191`	`writeCOSNull(output);`
`192`	`192`	`return;`
`193`	`193`	`}`
	`194`	`+ if (base instanceof COSObject)`
	`195`	`+ {`
	`196`	`+ LOG.error("COSObject {} references another COSObject?!", object);`
	`197`	`+ }`
`194`	`198`	`}`
`195`	`199`	`else`
`196`	`200`	`{`