ICEpdf
  1. ICEpdf
  2. PDF-1010

java.lang.NullPointerException thrown when try to open some PDFs

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 6.1.2
          • Fix Version/s: 6.1.3
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            All
          • Workaround Exists:
            Yes
          • Workaround Description:
            Hide
            If I change convertToString in CMap class in the way below the PDF is showed. But I think that this is a workaround rather than a fix of the problem.

            private char[] convertToString(CharSequence s) {
                    if (s == null && s.length() % 2 != 0) {
                        throw new IllegalArgumentException();
                    }
                    int len = s.length();
                    if (len == 1) {
                        return new char[]{s.charAt(0)};
                    }
                    char[] dest = new char[len / 2];
                    for (int i = 0, j = 0; i < len; i += 2, j++) {
                        dest[j] = (char) ((s.charAt(i) << 8) | s.charAt(i + 1));
                    }
                    return dest;
                }
            Show
            If I change convertToString in CMap class in the way below the PDF is showed. But I think that this is a workaround rather than a fix of the problem. private char[] convertToString(CharSequence s) {         if (s == null && s.length() % 2 != 0) {             throw new IllegalArgumentException();         }         int len = s.length();         if (len == 1) {             return new char[]{s.charAt(0)};         }         char[] dest = new char[len / 2];         for (int i = 0, j = 0; i < len; i += 2, j++) {             dest[j] = (char) ((s.charAt(i) << 8) | s.charAt(i + 1));         }         return dest;     }

            Description

            When rendering the provided PDF file the following exceptions are thrown and the content of the PDF is rendered blank:

            ICEsoft ICEpdf Viewer x.x.x x
            Copyright ICEsoft Technologies, Inc.

            lug 15, 2016 10:03:01 AM org.icepdf.core.pobjects.Catalog <clinit>
            INFORMAZIONI: ICEsoft ICEpdf Core x.x.x x
            lug 15, 2016 10:03:01 AM org.icepdf.core.pobjects.Resources getFont
            AVVERTENZA: Error initializing font, falling back to font substitution.
            lug 15, 2016 10:03:01 AM org.icepdf.core.util.content.AbstractContentParser consume_Tf
            AVVERTENZA: Warning could not find font by named resource C2_0
            lug 15, 2016 10:03:01 AM org.icepdf.core.pobjects.Resources getFont
            AVVERTENZA: Error initializing font, falling back to font substitution.
            lug 15, 2016 10:03:01 AM org.icepdf.core.util.content.AbstractContentParser consume_Tf
            AVVERTENZA: Warning could not find font by named resource C2_0
            lug 15, 2016 10:03:01 AM org.icepdf.core.util.content.NContentParser parse
            AVVERTENZA: Error parsing content stream.
            java.lang.NullPointerException
            at org.icepdf.core.util.content.AbstractContentParser.consume_Tf(AbstractContentParser.java:833)
            at org.icepdf.core.util.content.NContentParser.parse(NContentParser.java:174)
            at org.icepdf.core.pobjects.Page.init(Page.java:404)
            at org.icepdf.ri.common.views.PageViewComponentImpl$PageInitializer.run(PageViewComponentImpl.java:1180)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
            at java.lang.Thread.run(Thread.java:745)

            The problem is that the convertToString method of CMap.java class receives a CharSequence s of length 1.

            P.S. Incidentally I noted that the same method contains a bug: if (s == null && s.length() % 2 != 0) I think should instead be if (s == null || s.length() % 2 != 0). But I don't think that is the problem.
            1. PDF File
              Atto2.pdf
              894 kB
              Giorgio Fiderio
            1. IcePDFTest.png
              414 kB

              Activity

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Giorgio Fiderio
                • Votes:
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                  2 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved: