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https://issues.apache.org/jira/browse/GIRAPH-807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13836436#comment-13836436
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Rob Vesse commented on GIRAPH-807:
----------------------------------
Note that the documentation for the plugin specifically calls out the fact that
you may need to configure it to ignore multiple versions of the XML base
classes from `javax.xml` - see
https://github.com/ning/maven-duplicate-finder-plugin#configuring-it
> Current Giraph trunk won't build when stable Hadoop 1.2.1 version is specified
> ------------------------------------------------------------------------------
>
> Key: GIRAPH-807
> URL: https://issues.apache.org/jira/browse/GIRAPH-807
> Project: Giraph
> Issue Type: Bug
> Affects Versions: 1.1.0
> Reporter: Rob Vesse
>
> When attempting to build the latest trunk against Hadoop 1.2.1 the following
> errors are reported by maven-duplicate-finder-plugin:
> {noformat}
> [INFO] --- maven-duplicate-finder-plugin:1.0.4:check (default) @
> giraph-parent ---
> [INFO] Checking compile classpath
> [WARNING] Found duplicate classes in
> [javax.xml.stream:stax-api:1.0-2,stax:stax-api:1.0.1] :
> [WARNING] javax.xml.stream.EventFilter
> [WARNING] javax.xml.stream.FactoryConfigurationError
> [WARNING] javax.xml.stream.FactoryFinder
> [WARNING] javax.xml.stream.Location
> [WARNING] javax.xml.stream.StreamFilter
> [WARNING] javax.xml.stream.XMLEventFactory
> [WARNING] javax.xml.stream.XMLEventReader
> [WARNING] javax.xml.stream.XMLEventWriter
> [WARNING] javax.xml.stream.XMLInputFactory
> [WARNING] javax.xml.stream.XMLOutputFactory
> [WARNING] javax.xml.stream.XMLReporter
> [WARNING] javax.xml.stream.XMLResolver
> [WARNING] javax.xml.stream.XMLStreamConstants
> [WARNING] javax.xml.stream.XMLStreamException
> [WARNING] javax.xml.stream.XMLStreamReader
> [WARNING] javax.xml.stream.XMLStreamWriter
> [WARNING] javax.xml.stream.events.Attribute
> [WARNING] javax.xml.stream.events.Characters
> [WARNING] javax.xml.stream.events.Comment
> [WARNING] javax.xml.stream.events.DTD
> [WARNING] javax.xml.stream.events.EndDocument
> [WARNING] javax.xml.stream.events.EndElement
> [WARNING] javax.xml.stream.events.EntityDeclaration
> [WARNING] javax.xml.stream.events.EntityReference
> [WARNING] javax.xml.stream.events.Namespace
> [WARNING] javax.xml.stream.events.NotationDeclaration
> [WARNING] javax.xml.stream.events.ProcessingInstruction
> [WARNING] javax.xml.stream.events.StartDocument
> [WARNING] javax.xml.stream.events.StartElement
> [WARNING] javax.xml.stream.events.XMLEvent
> [WARNING] javax.xml.stream.util.EventReaderDelegate
> [WARNING] javax.xml.stream.util.StreamReaderDelegate
> [WARNING] javax.xml.stream.util.XMLEventAllocator
> [WARNING] javax.xml.stream.util.XMLEventConsumer
> {noformat}
> The command line invocation to reproduce is as follows:
> {noformat}
> mvn clean install -Dhadoop.version=1.2.1
> {noformat}
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