Vaadin Maven Plugin not thread-safe

[knoobie]

Describe the bug

    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - *****************************************************************
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * Your build is requesting parallel execution, but this         *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * project contains the following plugin(s) that have goals not  *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * marked as thread-safe to support parallel execution.          *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * While this /may/ work fine, please look for plugin updates    *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * and/or request plugins be made thread-safe.                   *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * If reporting an issue, report it against the plugin in        *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - * question, not against Apache Maven.                           *
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - *****************************************************************
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - The following plugins are not marked as thread-safe in Project Name:
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon -   com.vaadin:vaadin-maven-plugin:24.4.10
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon -
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - Enable debug to see precisely which goals are not marked as thread-safe.
    [mvn-builder-project] WARNING org.apache.maven.lifecycle.internal.builder.BuilderCommon - *****************************************************************

Expected-behavior

No such error.

Reproduction

Build any Vaadin Multi Module Project with Maven and enable parallel execution to speed up build.

System Info

Latest 24.4

[manolo]

I have seen this message before when building platform o flow-components that are using parallel execution, but we have not experienced any problem, so we just ignore the message, has you had any issue in your projects?

[knoobie]

Not seen a problem in the final product; but maven is literally crying ;) and all WARNING logs are preserved in Jenkins.. so it's not a good DX / advertising for the plugin

[manolo]

which goal do you expect to be thread-safe ? prepare-frontend or build-frontend ?

[knoobie]

I would expect build-frontend used in the production build to be thread-safe.. I would say even running a multi module project with different Vaadin modules should not be a problem because each has its own node modules, package json etc.