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https://issues.apache.org/jira/browse/MINVOKER-191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14907861#comment-14907861
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Robert Scholte commented on MINVOKER-191:
-----------------------------------------
I can confirm this issue. Up until now all reactor-project started before the
current project are always installed, even though they are not used. With a
single thread this is not a real issue, but with multiple threads it can happen
that the jar is not yet created (so started, though not yet finished).
I wonder if this was a hack required for Maven2. I would expect that nowadays
Maven can perfectly pick up the artifact from the reactor if it was part of it.
Anyhow, this piece of code is too aggressive.
> “Artifact is not fully assembled” error with maven-invoker-plugin in parallel
> build
> -----------------------------------------------------------------------------------
>
> Key: MINVOKER-191
> URL: https://issues.apache.org/jira/browse/MINVOKER-191
> Project: Maven Invoker Plugin
> Issue Type: Bug
> Affects Versions: 1.10
> Reporter: Tavian Barnes
>
> According to the docs
> (https://maven.apache.org/plugins/maven-invoker-plugin/install-mojo.html),
> maven-invoker-plugin is "thread-safe and supports parallel builds." However,
> when I build by multi-module project with -T 1C, I get an error like the
> following:
> bq. [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-invoker-plugin:1.10:install (integration-test)
> on project my-archetype: Failed to install project dependencies:
> MavenProject: com.tavianator:my-archetype:1.6-SNAPSHOT @
> /home/tavianator/code/Project/my-archetype/pom.xml: Failed to install project
> artifacts: MavenProject: com.tavianator:my-project-2:1.6-SNAPSHOT @
> /home/tavianator/code/Project/my-project-2/pom.xml: Failed to install
> artifact: com.tavianator:my-project-2:jar:1.6-SNAPSHOT: Artifact is not fully
> assembled: /home/tavianator/code/Project/my-project-2/target/classes -> [Help
> 1]
> The project layout is like this:
> {code}
> Root
> |--Project 1
> |--Project 2
> |--Archetype (depends on Project 1, scope=test)
> {code}
> The archetype integration tests use the maven-invoker-plugin to install the
> relevant dependencies (Root and Project 1) to a local repository, then runs
> the normal archetype integration tests. In parallel builds, Archetype and
> Project 2 run at the same time. When the maven-invoker-plugin runs, it tries
> to install Project 2 to the local repo, but Project 2 isn't built yet, hence
> the error.
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