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https://issues.apache.org/jira/browse/TIKA-4130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17772277#comment-17772277
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Hudson commented on TIKA-4130:
------------------------------
SUCCESS: Integrated in Jenkins build Tika » tika-main-jdk11 #1324 (See
[https://ci-builds.apache.org/job/Tika/job/tika-main-jdk11/1324/])
TIKA-4130 -- add xerces and xml-apis to the banned dependencies list in
3.x/main (tallison:
[https://github.com/apache/tika/commit/413b23223200086fa0c8c8f0894729d61cc7348d])
* (edit) tika-parent/pom.xml
> Conflict with duplicate org/w3c and org/xml packages in tika-app jar
> --------------------------------------------------------------------
>
> Key: TIKA-4130
> URL: https://issues.apache.org/jira/browse/TIKA-4130
> Project: Tika
> Issue Type: Improvement
> Affects Versions: 2.7.0, 2.9.0
> Environment: Java 8 and Java 11
> Reporter: RaahulUmapathy
> Priority: Major
> Fix For: 3.0.0-BETA
>
>
> While attempting to migrate from version 1.20 to version 2.7 of Apache Tika,
> I encountered a specific error.
> We have been using a "child-first classloader" to isolate the tika-app JAR
> from the classpath for file parsing.
> {+}The error message we're facing is as follows{+}:
> java.lang.LinkageError: loader constraint violation: when resolving
> overridden method
> "org.apache.xerces.jaxp.DocumentBuilderImpl.newDocument()Lorg/w3c/dom/Document;"
> the class loader (instance of org/xeustechnologies/jcl/JarClassLoader) of
> the current class, org/apache/xerces/jaxp/DocumentBuilderImpl, and its
> superclass loader (instance of <bootloader>), have different Class objects
> for the type org/w3c/dom/Document used in the signature.
> Upon analysis, I can see that a conflict exists between the default
> classloader (rt.jar) and our child-first classloader due to different
> versions of the class "Node.class" (org/w3c package) in both jars. Similar
> issues were encountered with the classes in "org/xml" package too.
> {+}The parsing functionality worked correctly after removing the following
> packages from the tika-app JAR{+}:
> 1. org/w3c/**
> 2. org/xml/**
> We are currently using Java 8 and would greatly appreciate guidance on the
> same.
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