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From "Tim Allison (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (TIKA-2693) Tika 1.17 uses the wrong classloader for reflection
Date Thu, 06 Sep 2018 15:36:00 GMT

     [ https://issues.apache.org/jira/browse/TIKA-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tim Allison resolved TIKA-2693.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0
                   1.19

Upgraded to POI 4.0.0.  Hopefully, that will solve this problem.  Please reopen if it doesn't.

> Tika 1.17 uses the wrong classloader for reflection
> ---------------------------------------------------
>
>                 Key: TIKA-2693
>                 URL: https://issues.apache.org/jira/browse/TIKA-2693
>             Project: Tika
>          Issue Type: Bug
>          Components: general
>    Affects Versions: 1.17
>            Reporter: Karl Wright
>            Priority: Major
>             Fix For: 1.19, 2.0.0
>
>
> I don't know whether this was addressed in 1.18, but Tika seemingly uses the wrong classloader
when loading some classes by reflection.
> In ManifoldCF, there's a two-tiered classloader hierarchy.  Tika runs in the higher class
level.  Its expectation is that classes that are loaded via reflection use the classloader
associated with the class that is resolving the reflection, NOT the thread classloader.  That's
standard Java practice.
> But apparently there's a place where Tika doesn't do it that way:
> {code}
> Error tossed: org/apache/poi/POIXMLTextExtractor
> java.lang.NoClassDefFoundError: org/apache/poi/POIXMLTextExtractor
>         at org.apache.tika.parser.microsoft.ooxml.OOXMLParser.parse(OOXMLParser.java:106)
~[?:?]
>         at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[?:?]
>         at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280) ~[?:?]
>         at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:143) ~[?:?]
>         at org.apache.manifoldcf.agents.transformation.tika.TikaParser.parse(TikaParser.java:74)
~[?:?]
> {code}



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