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https://issues.apache.org/jira/browse/MSHADE-342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17004726#comment-17004726
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Herve Boutemy commented on MSHADE-342:
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nice catch: looks like this IT should be defined as a setup IT = the normal way
to show its special role
setting relativePath is a good workaround, given the setup is really minimal
putting the pom.xml in the root directory and not defining it as setup job
could perhaps do even a better job at showing the intent of this parent pom
(that is just a config for Java 9+)
> Many ITs fail when run in isolation
> -----------------------------------
>
> Key: MSHADE-342
> URL: https://issues.apache.org/jira/browse/MSHADE-342
> Project: Maven Shade Plugin
> Issue Type: Bug
> Affects Versions: 3.2.2
> Reporter: Peter De Maeyer
> Priority: Minor
>
> Maven invoker plugin supports running ITs in isolation, but many ITs fail
> when running them in isolation.
> One example (there are many others):
> {code:bash}
> mvn -Prun-its clean verify -Dinvoker.test=MSHADE-258_module_relocation
> {code}
> They fail because of a missing {{target/it/setup-parent/pom.xml}}.
> The failure is logged in {{target/it/setup-parent/build.log}}.
> The reason is that there is a missing parent dependency, which is apparently
> required for _any_ IT in this project.
> When you run all the ITs together, it works by accident because the missing
> directory is created by some other test in the beginning of the IT test run,
> and then all subsequent tests work as well.
> h3. Potential solution 1
> A fix is to identify the broken ITs by running all of them in isolation and
> add the following to all of the broken ones:
> {code:xml}
> <parent>
> <groupId>org.apache.maven.plugins.shade.its</groupId>
> <artifactId>shade-parent</artifactId>
> <version>1.0</version>
> <relativePath>../setup-parent</relativePath>
> </parent>
> {code}
> It should be documented somewhere (maybe it is but I overlooked it?) that,
> when writing an IT, this _must_ be the parent.
> (+) This will work.
> (-) Every individual IT's {{pom.xml}} needs to be updated with a parent
> dependency it has no business with.
> (-) It excludes writing an IT for a root project (that has no parent).
> Maybe we can find a solution that doesn't involve updating all IT projects.
> I'll need to investigate a bit more, first I'll need to figure out where the
> {{setup-parent}} project comes from.
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