public List<MavenProject> getProjects() {
        return projects;
    }

    /**
     * @deprecated use {@link #getTopDirectory()} ()}
     */
    @Deprecated
    public String getExecutionRootDirectory() {
        return request.getBaseDirectory();
    }

    /**
     * @see MavenExecutionRequest#getTopDirectory()
     * @since 4.0.0
     */
    public Path getTopDirectory() {

            Throwable cause = new MissingProjectException(
                    "Goal requires a project to execute" + " but there is no POM in this directory ("
                            + session.getExecutionRootDirectory() + ")."
                            + " Please verify you invoked Maven from the correct directory.");
            throw new LifecycleExecutionException(messageBuilderFactory, mojoExecution, null, cause);
        }