ICEpdf
  1. ICEpdf
  2. PDF-982

ClassCastException and EmptyStackException thrown when rendering PDF

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 6.1
          • Fix Version/s: 6.1.1
          • Component/s: Core/Rendering
          • Labels:
            None
          • Environment:
            All

            Description

            When rendering the provided PDF file, the following error stack traces are thrown:

            Mar 29, 2016 9:36:20 AM org.icepdf.core.util.content.NContentParser parse
            FINE: Parsing page content streams: 1
            Mar 29, 2016 9:36:20 AM org.icepdf.core.util.content.NContentParser parse
            FINER: Content = .~øC ç1
            Mar 29, 2016 9:36:20 AM org.icepdf.core.util.content.NContentParser parse
            WARNING: Error parsing content stream.
            java.lang.ClassCastException: java.lang.Float cannot be cast to org.icepdf.core.pobjects.Name
            at org.icepdf.core.util.content.AbstractContentParser.consume_CS(AbstractContentParser.java:244)
            at org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
            at org.icepdf.core.pobjects.graphics.TilingPattern.init(TilingPattern.java:296)
            at org.icepdf.core.util.content.AbstractContentParser.commonFill(AbstractContentParser.java:1840)
            at org.icepdf.core.util.content.AbstractContentParser.consume_f_star(AbstractContentParser.java:1180)
            at org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
            at org.icepdf.core.pobjects.Page.init(Page.java:403)
            at org.icepdf.ri.common.views.PageViewComponentImpl$PageInitializer.run(PageViewComponentImpl.java:1169)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
            at java.lang.Thread.run(Thread.java:745)

            Mar 29, 2016 9:36:20 AM org.icepdf.core.util.content.NContentParser parse
            FINE: Parsing page content streams: 1
            Mar 29, 2016 9:36:20 AM org.icepdf.core.util.content.NContentParser parse
            FINER: Content = kÛ÷ßwV°
            Mar 29, 2016 9:36:20 AM org.icepdf.core.util.content.NContentParser parse
            WARNING: Error parsing content stream.
            java.util.EmptyStackException
            at java.util.Stack.peek(Stack.java:102)
            at java.util.Stack.pop(Stack.java:84)
            at org.icepdf.core.util.content.AbstractContentParser.consume_k(AbstractContentParser.java:230)
            at org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
            at org.icepdf.core.pobjects.graphics.TilingPattern.init(TilingPattern.java:296)
            at org.icepdf.core.util.content.AbstractContentParser.commonFill(AbstractContentParser.java:1840)
            at org.icepdf.core.util.content.AbstractContentParser.consume_f_star(AbstractContentParser.java:1180)
            at org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
            at org.icepdf.core.pobjects.Page.init(Page.java:403)
            at org.icepdf.ri.common.views.PageViewComponentImpl$PageInitializer.run(PageViewComponentImpl.java:1169)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
            at java.lang.Thread.run(Thread.java:745)

            The customer is also reporting that these exceptions result in an endless loop.

              Activity

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              Patrick Corless added a comment -

              The content stream associated with every tilling pattern object in the PDF is lacking a filter entry which means the stream contents should be treated as an encrypted string. The decode however fails because we don't have a properly setup object reference. Once this is corrected the PDF renders correctly.

              Show
              Patrick Corless added a comment - The content stream associated with every tilling pattern object in the PDF is lacking a filter entry which means the stream contents should be treated as an encrypted string. The decode however fails because we don't have a properly setup object reference. Once this is corrected the PDF renders correctly.
              Hide
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              Patrick Corless added a comment -

              Marking as fixed. Updated trunk and 6.1 branch.

              Show
              Patrick Corless added a comment - Marking as fixed. Updated trunk and 6.1 branch.

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Arran Mccullough
                • Votes:
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                  Watchers:
                  2 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved: