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https://issues.apache.org/jira/browse/SLING-12131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17784163#comment-17784163
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Rob McDougall commented on SLING-12131:
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{quote}A quick google turned up that the OpenRewrite projct
{quote}
I've used this before and it works well, but I haven't used it for custom
@Rules (which I would imagine don't migrate well).
{quote}There are custom @Rule implementations that are non-trivial to migrate.
There are runners, that may not be trivial to migrate, either. The difference
between assertions and some ootb \{{@Rule}}s can likely be covered with
automation.
{quote}
Well, complete conversion to JUnit5 Jupiter should not be required before the
JUnit4 can be removed. Conversion to JUnit5 Vintage Engine should handle custom
@Rules and whatever other JUnit4 constructs are being used. That's all I am
talking about. Once that is done, the dependency on the unmaintained JUnit4 is
removed. Conversion from Vintage to Jupiter can take as long as it takes.
> Update sling-parent pom.xml to include JUnit5 dependencies
> ----------------------------------------------------------
>
> Key: SLING-12131
> URL: https://issues.apache.org/jira/browse/SLING-12131
> Project: Sling
> Issue Type: Task
> Reporter: Rob McDougall
> Priority: Major
>
> JUnit4 is in maintenance mode (no updates in the last 2 years and then only
> security fixes). I think updating projects to JUnit5 should be encouraged.
> I am thinking this should be a relatively easy change of adding the
> junit-jupiter and junit-vintage-engine into the Dependency Management section
> of the sling-parent.
> Once this is done, individual projects could switch to the vintage-engine (at
> the very least) or move to jupiter by switching the dependency in their
> project pom.
> Some day down the road, the JUnit 4 dependencies could be removed. Projects
> that have not updated to JUnit5 (vintage or jupiter) by that time are likely
> no longer maintained.
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