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Posted to commits@pdfbox.apache.org by ti...@apache.org on 2019/04/20 12:02:35 UTC

svn commit: r1857872 - /pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java

Author: tilman
Date: Sat Apr 20 12:02:35 2019
New Revision: 1857872

URL: http://svn.apache.org/viewvc?rev=1857872&view=rev
Log:
PDFBOX-4521: avoid ClassCastException

Modified:
    pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java

Modified: pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java?rev=1857872&r1=1857871&r2=1857872&view=diff
==============================================================================
--- pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java (original)
+++ pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/cos/COSDocument.java Sat Apr 20 12:02:35 2019
@@ -310,22 +310,22 @@ public class COSDocument extends COSBase
     public boolean isEncrypted()
     {
         boolean encrypted = false;
-        if( trailer != null )
+        if (trailer != null)
         {
-            encrypted = trailer.getDictionaryObject( COSName.ENCRYPT ) != null;
+            encrypted = trailer.getDictionaryObject(COSName.ENCRYPT) instanceof COSDictionary;
         }
         return encrypted;
     }
 
     /**
-     * This will get the encryption dictionary if the document is encrypted or null
-     * if the document is not encrypted.
+     * This will get the encryption dictionary if the document is encrypted or null if the document
+     * is not encrypted.
      *
      * @return The encryption dictionary.
      */
     public COSDictionary getEncryptionDictionary()
     {
-        return (COSDictionary)trailer.getDictionaryObject( COSName.ENCRYPT );
+        return trailer.getCOSDictionary(COSName.ENCRYPT);
     }
 
     /**
@@ -346,7 +346,7 @@ public class COSDocument extends COSBase
      */
     public COSArray getDocumentID()
     {
-        return (COSArray) getTrailer().getDictionaryObject(COSName.ID);
+        return getTrailer().getCOSArray(COSName.ID);
     }
 
     /**