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  1. PDFBox
  2. PDFBOX-3155

org.apache.pdfbox.util.PDFTextStripper class initialization throws NumberFormatException with recent Verona-enabled Java 9 JVMs

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 1.8.8, 1.8.10
    • Fix Version/s: 1.8.11, 2.0.0
    • Component/s: None
    • Labels:
      None

      Description

      Lucene/Solr runs its whole testsuite also with Java 9 EA releases to trigger bugs early. In our tests (Solr + TIKA) we found out that org.apache.pdfbox.util.PDFTextStripper throws a NumberFormatException in its static initializer when parsing the "java.version" system property. The reason for failure is a change in Java 9, where version numbers got a new format.

      There are 3 problems:

      • It should not assume that all components are really a number. So it should try/catch NumberFormatException and assign some "unknown" version
      • The code should really use "java.specification.version". This is standardized and only contains digits.
      • The code should also be prepared to handle version numbers without minor version! E.g. Java 9 only has "9" instead of "1.9" as its main version number.

      For the use case I would nuke this check and find a better workaround.

      Relying on String parsing for non-standardized system properties in a static class initializer is the reason why this bug is raised to level "Critical".

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            • Assignee:
              tilman Tilman Hausherr
              Reporter:
              thetaphi Uwe Schindler
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              • Created:
                Updated:
                Resolved: