Isn't that a violation of the PDF spec?  If so, we should at least log a 
message indicating that a problem was detected.

---- 
Thanks,
Adam





From:
"Kevin Jackson (JIRA)" <[email protected]>
To:
[email protected]
Date:
11/10/2010 19:17
Subject:
[jira] Created: (PDFBOX-891) Malformed document causes NPE in 
PDNameTreeNode.getValue



Malformed document causes NPE in PDNameTreeNode.getValue
--------------------------------------------------------

                 Key: PDFBOX-891
                 URL: https://issues.apache.org/jira/browse/PDFBOX-891
             Project: PDFBox
          Issue Type: Bug
          Components: PDModel
    Affects Versions: 1.3.1
            Reporter: Kevin Jackson


If a NameTreeNode has neither a Names or Kids item, then getValue crashes 
with a Null Pointer Exception.

Fix:

### Eclipse Workspace Patch 1.0
#P pdfbox
Index: 
pdfbox/src/main/java/org/apache/pdfbox/pdmodel/common/PDNameTreeNode.java
===================================================================
--- 
pdfbox/src/main/java/org/apache/pdfbox/pdmodel/common/PDNameTreeNode.java  
 (revision 1026306)
+++ 
pdfbox/src/main/java/org/apache/pdfbox/pdmodel/common/PDNameTreeNode.java  
 (working copy)
@@ -147,13 +147,15 @@
         else
         {
             List kids = getKids();
-            for( int i=0; i<kids.size() && retval == null; i++ )
-            {
-                PDNameTreeNode childNode = (PDNameTreeNode)kids.get( i );
-                if( childNode.getLowerLimit().compareTo( name ) <= 0 &&
-                        childNode.getUpperLimit().compareTo( name ) >= 0 
)
+            if (kids != null) {
+                for( int i=0; i<kids.size() && retval == null; i++ )
                 {
-                    retval = childNode.getValue( name );
+                    PDNameTreeNode childNode = (PDNameTreeNode)kids.get( 
i );
+                    if( childNode.getLowerLimit().compareTo( name ) <= 0 
&&
+                            childNode.getUpperLimit().compareTo( name ) 
>= 0 )
+                    {
+                        retval = childNode.getValue( name );
+                    }
                 }
             }
         }


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