* This collection has the same content as {@code getDependencies.values()} except that it does not contain
     * null elements.
     *
     * @return the paths of all dependencies
     */
    @Nonnull
    List<Path> getPaths();

    /**
     * Returns the file paths of all dependencies and their assignments to different paths.
     * The {@link PathType} keys identify, for example, {@code --class-path} or {@code --module-path} options.