Plugin uses Maven 2 API, requires still outdated Maven 3.0.0-API and will break in Maven 4 (soon to be released)

[bmarwell]

Warning when building with Maven 3.9.1:

[WARNING] Parameter 'artifactRepository' is deprecated core expression; Avoid use of ArtifactRepository type. If you need access to local repository, switch to '${repositorySystemSession}' expression and get LRM from it instead.

${repositorySystemSession} is available with Maven 3.2.5, which is the minimum needed version for the other maven plugins anyway.

• Remove outdated maven 2 api from org.codehaus (basicPluginSupport)
• Remove use of ArtifactRepository
• Use at least maven 3.2.5
• Sync all maven versions. Currently requirement is set to 3.0.0, API used is 2.0, Maven imported is 3.8.6, annotations is even yet another version!
• Add tests with maven 4-Alpha versions (extend the build matrix)
• Define a default value for runtimeVersion, so build doesn't just break without parameters.
• set maven-core scope to provided
• replace @Component(role = AntHelper.class) AntHelper ant in AbstractLibertySupport
• make ...Support classes abstract. The will inherit from AbstractMojo but will not have an executable goal on their own.
• replace AntHelper

[cherylking]

@bmarwell Do all org.codehaus packages need to be removed? If so, what is the replacement for org.codehaus.plexus:plexus-utils?