setActiveProfiles((Collections.unmodifiableList(project.getActiveProfiles())));
        }

        if (project.getAttachedArtifacts() != null) {
            // clone properties modifiable by plugins in a forked lifecycle
            setAttachedArtifacts(new ArrayList<>(project.getAttachedArtifacts()));
        }

        // This property is not handled like others as we don't use public API.