java.lang.ClassCastException: org.icepdf.core.pobjects.functions.postscript.Expression cannot be cast to java.lang.Float

ICEsoft JIRA Issue Tracker | Arran Mccullough | 2 years ago
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    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.

    ICEsoft JIRA Issue Tracker | 8 months ago | Arran Mccullough
    java.lang.ClassCastException: java.lang.Float cannot be cast to org.icepdf.core.pobjects.Name

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    Root Cause Analysis

    1. java.lang.ClassCastException

      org.icepdf.core.pobjects.functions.postscript.Expression cannot be cast to java.lang.Float

      at org.icepdf.core.pobjects.functions.postscript.OperatorFactory$18.eval()
    2. org.icepdf.core
      Page.init
      1. org.icepdf.core.pobjects.functions.postscript.OperatorFactory$18.eval(OperatorFactory.java:328)
      2. org.icepdf.core.pobjects.functions.postscript.Lexer.operandStart(Lexer.java:225)
      3. org.icepdf.core.pobjects.functions.postscript.Lexer.parse(Lexer.java:112)
      4. org.icepdf.core.pobjects.functions.Function_4.calculate(Function_4.java:95)
      5. org.icepdf.core.pobjects.graphics.Separation.getColor(Separation.java:179)
      6. org.icepdf.core.util.content.AbstractContentParser.consume_sc(AbstractContentParser.java:414)
      7. org.icepdf.core.util.content.NContentParser.parse(Unknown Source)
      8. org.icepdf.core.pobjects.Page.init(Page.java:370)
      8 frames
    3. org.icepdf.ri
      PageViewComponentImpl$PageInitializer.run
      1. org.icepdf.ri.common.views.PageViewComponentImpl$PageInitializer.run(PageViewComponentImpl.java:1065)
      1 frame
    4. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames