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  1. PDFBox
  2. PDFBOX-5072

java.lang.IndexOutOfBoundsException

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 2.0.22
    • Fix Version/s: 2.0.23, 3.0.0 PDFBox
    • Component/s: PDModel, Utilities
    • Labels:
      None

      Description

      I'm having a similar issue that have been fixed in PDFBOX-4969.

      In my case, the IndexOutOfBoundsException occurs inside PDNameTreeNode, and not inside PDNumberTreeNode.

      java.lang.IndexOutOfBoundsException: Index: 81, Size: 81 at java.util.ArrayList.rangeCheck(ArrayList.java:653) at java.util.ArrayList.get(ArrayList.java:429) at org.apache.pdfbox.cos.COSArray.getObject(COSArray.java:188) at org.apache.pdfbox.pdmodel.common.PDNameTreeNode.getNames(PDNameTreeNode.java:272) at org.apache.pdfbox.multipdf.PDFMergerUtility.getIDTreeAsMap(PDFMergerUtility.java:1036) at org.apache.pdfbox.multipdf.PDFMergerUtility.getIDTreeAsMap(PDFMergerUtility.java:1051) at org.apache.pdfbox.multipdf.PDFMergerUtility.mergeIDTree(PDFMergerUtility.java:1008) at org.apache.pdfbox.multipdf.PDFMergerUtility.appendDocument(PDFMergerUtility.java:877) at org.apache.pdfbox.multipdf.PDFMergerUtility.legacyMergeDocuments(PDFMergerUtility.java:459) at org.apache.pdfbox.multipdf.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:346)
      

      Unfortunately, I can't share the document that reproduce the issue.

      I tried the same approach to fix it :

      public Map<String, T> getNames() throws IOException
      {
         COSArray namesArray = node.getCOSArray(COSName.NAMES);
         if( namesArray != null )
         {
           Map<String, T> names = new LinkedHashMap<String, T>();
           if (namesArray.size() % 2 != 0)
           {
             LOG.warn("Numbers array has odd size: " + namesArray.size());
           }
           for (int i = 0; i + 1 < namesArray.size(); i += 2)
           {
             COSBase base = namesArray.getObject(i);
             if (!(base instanceof COSString))
             {
                throw new IOException("Expected string, found " + base + " in name tree at index " + i);
      ....

      But I'm getting the IOException :

      Caused by: java.io.IOException: Expected string, found COSDictionary{[...] in name tree at index 0
      

      And indeed, namesArray contains a COSObject at first index :

       

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            • Assignee:
              tilman Tilman Hausherr
              Reporter:
              Thomas B. Thomas B.

              Dates

              • Created:
                Updated:
                Resolved:

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