[jira] [Updated] (SUREFIRE-1909) Support JUnit 5 reflection access by changing add-exports to add-opens

["Tibor Digana (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SUREFIRE-1909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tibor Digana updated SUREFIRE-1909:
-----------------------------------
    Fix Version/s: 3.0.0-M6

> Support JUnit 5 reflection access by changing add-exports to add-opens
> ----------------------------------------------------------------------
>
>                 Key: SUREFIRE-1909
>                 URL: https://issues.apache.org/jira/browse/SUREFIRE-1909
>             Project: Maven Surefire
>          Issue Type: Bug
>          Components: JUnit 5.x support
>    Affects Versions: 3.0.0-M5
>            Reporter: Christian Kohlschütter
>            Priority: Major
>             Fix For: 3.0.0-M6
>
>         Attachments: surefire-jpms-bug.tar.gz
>
>
> Testing JUnit 5 classes of a JPMS-enabled project with Surefire may fail if a test class (or, for example, an abstract test base class) is not declared "public". I'm seeing the following error:
>  
> {code:java}
> java.lang.reflect.InaccessibleObjectException: Unable to make public static void some.package.SomeClass.setupClass() throws java.io.IOException accessible: module some.module does not "opens some.package" to unnamed module @754ba872{code}
> This could be fixed by adding the recommended "{{opens some.package}}" to the project's module-info.java, however that is undesirable since it changes the project's behavior beyond just unit testing. Adding a secondary "test-only" module-info.java is also counterproductive since not all IDEs support this, and these two files would have to be kept in sync, which is non-trivial.
> An easy fix would be to change the "{{--add-exports-}}" VM parameter that surefire adds automatically to "{{-}}{{add-opens}}" in {{maven-surefire-common/src/main/java/org/apache/maven/plugin/surefire/booterclient/ModularClasspathForkConfiguration.java}}
> This bug is particularly bad because PMD now specifically complains about junit5 classes marked as public instead of package-private; see [https://pmd.github.io/2021/05/29/PMD-6.35.0/]



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