[jira] Created: (PDFBOX-743) PDAppereanceDictionary#getNormalAppearance might throw NPE

[Philipp Koch (JIRA)]

PDAppereanceDictionary#getNormalAppearance might throw NPE
----------------------------------------------------------

                 Key: PDFBOX-743
                 URL: https://issues.apache.org/jira/browse/PDFBOX-743
             Project: PDFBox
          Issue Type: Bug
          Components: PDModel
    Affects Versions: 1.1.0
            Reporter: Philipp Koch
             Fix For: 1.2.0


following code patch will ensure that no NPE is thrown. the question is if the 
check for NULL is done at the correct place (functionally yes) respectively is 
it correct to apply the default configuration setting for that case?

@@ -85,7 +85,7 @@
     public Map getNormalAppearance()
     {
         COSBase ap = dictionary.getDictionaryObject( COSName.getPDFName( "N" ) 
);
-        if( ap instanceof COSStream )
+        if( ap instanceof COSStream || ap == null)
         {
             COSStream aux = (COSStream) ap;
             ap = new COSDictionary();


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