The current failures might benefit from #3185.

The culprit of the Windows failures:

[DEBUG] Fork Channel [1] connected to the client.
The command line is too long.
[DEBUG] Closing the fork 1 after not saying Good Bye.

This is likely related to https://learn.microsoft.com/en-us/troubleshoot/windows-client/shell-experience/command-line-string-limitation, as the current command line has over 13k characters.

!!Hey @scordio I think that maybe somthing like this can work to bypass the limitation of the argLine and move it to a file:

<properties>
  <argLine>@${project.build.directory}/jvm-args.txt</argLine>
</properties>

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-resources-plugin</artifactId>
  <executions>
    <execution>
      <id>generate-jvm-args</id>
      <phase>process-test-resources</phase>
      <goals>
        <goal>copy-resources</goal>
      </goals>
      <configuration>
        <outputDirectory>${project.build.directory}</outputDirectory>
        <resources>
          <resource>
            <directory>src/test/resources</directory>
            <filtering>true</filtering>
            <includes>
              <include>jvm-args.txt</include>
            </includes>
          </resource>
        </resources>
      </configuration>
    </execution>
  </executions>
</plugin>

Tomorrow I can try locally, but I guess you committing and running the GHA would be easier/faster. I remember maybe something similar about length of argLines about mvnd as well, maybe @cstamas or @gnodet would know.

Edit: the default approach is using .mvn/jvm.config in the project directories themselves (of pom), but I am unsure of the behavior/inheritance between the pom hierarchy. But I guess one of the two approaches would suffice in this case.

Thanks for the suggestions, @lobaorn!

I'll try them and see how they cooperate with the IDE, as IDE out-of-the-box support is the big advantage of the current argLine approach.

When working on #3442, I forgot to upgrade Mockito to version 5 in assertj-parent. I'll give it a try before merging.