here's what I do currently in the netbeans part of the mavenide project to
 find the relevant subprojects/sibling projects. I check if the user has
 defined the maven.multiproject.includes property in any of his properties
 files for the current project. if yes. then I'm able to find projects that
 can be offered to be opened together with the current project.
 problems with the current solution are:

        // load the child project, which inherits from p0...
        MavenProject project0 = getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        System.out.println("Project " + project1.getId() + " " + project1);
        Map map = project1.getArtifactMap();
        assertNotNull(map, "No artifacts");

        this.mojoExecution = mojoExecution;
    }

    public PluginExecutionException(
            MojoExecution mojoExecution, MavenProject project, String message, Throwable cause) {
        super(mojoExecution.getMojoDescriptor(), project, message, cause);
        this.mojoExecution = mojoExecution;
    }

    public PluginExecutionException(MojoExecution mojoExecution, MavenProject project, Exception cause) {

                "beforeProjectExecution project-basic", //
                "beforeProjectLifecycleExecution project-basic", //
                "beforeMojoExecution project-basic:default-resources", //
                "afterMojoExecutionSuccess project-basic:default-resources", //
                "beforeMojoExecution project-basic:default-compile", //
                "afterMojoExecutionSuccess project-basic:default-compile", //

    }

    // test a build where projects use different versions of the same plugin

    @Test
    void testThatPluginDependencyThatHasSystemScopeIsResolved() throws Exception {
        MavenSession session = createMavenSession(getProject("project-contributing-system-scope-plugin-dep"));
        MavenProject project = session.getCurrentProject();
        Plugin plugin = project.getPlugin("org.apache.maven.its.plugins:maven-it-plugin");

     * @param time The build time of the project in milliseconds.
     * @param cause The cause of the build failure, may be {@code null}.
     */
    public BuildFailure(MavenProject project, long time, Throwable cause) {
        this(project, Duration.ofMillis(time), cause);
    }

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.

            addTestListener(testListener)
        }
        super.executeTests()
    }
}


class LocalRepositoryEnvironmentProvider(project: Project) : CommandLineArgumentProvider, Named {
    private val projectName = project.name

    @Internal
    val localRepo = project.objects.fileCollection()

    @get:Classpath
    val jars: SortedSet<File>
        get() = localRepo.asFileTree.matching {

        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load everything...
        MavenProject project1 = getProjectWithDependencies(pom1);

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        System.out.println("Project " + project1.getId() + " " + project1);
        Set set = project1.getArtifacts();
        assertNotNull(set, "No artifacts");
        assertFalse(set.isEmpty(), "No Artifacts");

        }
    }

    private Optional<MavenProject> findOptionalProjectBySelector(
            List<MavenProject> projects, File reactorDirectory, String selector) {
        return projects.stream()
                .filter(project -> isMatchingProject(project, selector, reactorDirectory))
                .findFirst();
    }

    File getBaseDirectoryFromRequest(MavenExecutionRequest request) {

import org.apache.maven.model.building.UrlModelSource;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.ProjectBuilder;
import org.apache.maven.project.ProjectBuildingException;
import org.apache.maven.project.ProjectBuildingRequest;

/**
 * Strategy to collect projects for building when the Maven invocation is not in a directory that contains a pom.xml.
 */