/**
     * <p>Returns the root project for the hierarchy that this project belongs to.  In the case of a single-project
     * build, this method returns this project.</p>
     *
     * @return The root project. Never returns null.
     */
    Project getRootProject();

    /**
     * <p>Returns the root directory of this project. The root directory is the project directory of the root
     * project.</p>
     *

                        "projecta",
                        "projectb"
                    ]
                }
            }
        }
    ]
}`

	policyProjectsMap = map[string]string{
		// grants access to bucket `projecta` if user is in group `projecta`
		"projecta": policyProjectA,

		// grants access to bucket `projectb` if user is in group `projectb`

In the case of multi-project builds, the `file()` method will always turn relative paths into paths relative to the current project directory, which may be a child project.

=== Using `Project.getRootDir()`

                    project.getGroupId(), project.getArtifactId(), project.getVersion(), null, project.getPackaging());
            project.setArtifact(projectArtifact);

            // only set those on 2nd phase, ignore on 1st pass
            if (project.getFile() != null) {
                Build build = project.getBuild().getDelegate();
                project.addScriptSourceRoot(build.getScriptSourceDirectory());