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https://issues.apache.org/jira/browse/LUCENE-8146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16347235#comment-16347235
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Dawid Weiss commented on LUCENE-8146:
-------------------------------------
What's the full stack trace for this {{ExceptionInInitializerError}}?
> Unit tests using StringHelper fail with ExceptionInInitializerError for maven
> surefire >= 2.18
> ----------------------------------------------------------------------------------------------
>
> Key: LUCENE-8146
> URL: https://issues.apache.org/jira/browse/LUCENE-8146
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 7.2.1
> Reporter: Julien Massenet
> Priority: Minor
> Attachments: LUCENE-8146-seed_issue.tar.gz, LUCENE-8146_v1.patch
>
>
> This happens when multiple conditions are met:
> * The client code is built with Maven
> * To execute its unit tests, the client code relies on the
> {{maven-surefire-plugin}}, with a version greater than 2.17 (last working
> version)
> * The client code uses the {{org.apache.lucene.util.StringHelper}} class
> (even transitively)
> * The client is configured as with the standard Lucene maven build (i.e. it
> is possible to fix the test seed using the {{tests.seed}} property)
> There was a change in Surefire's behavior starting with 2.18: when a property
> is empty, instead of not sending it to the test runner, it will be sent with
> an empty value.
> This behavior can be observed with the attached sample project:
> * {{mvn test}}: fails with a {{java.lang.ExceptionInInitializerError}}
> * {{mvn test -Dtests.seed=123456}}: succeeds because the property is set to
> a real value
> * {{mvn test -Dsurefire.version=2.17}}: succeeds because the surefire
> version is lower than 2.18
> Attached is a patch (built against \{{branch_7x}}) that centralizes accesses
> to the {{tests.seed}} system property; it also makes sure that if it is
> empty, it is treated as absent.
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