class FileSystems {

    public static FileSystem newFileSystem(final URI uri,
                                           final Map<String, ?> env)
            throws IllegalArgumentException, FileSystemAlreadyExistsException, ProviderNotFoundException,
            IOException, SecurityException {
        checkNotNull("uri",
                     uri);
        checkNotNull("env",
                     env);

        return newFileSystem(uri,
                             env,
                             null);
    }

    private  FileSystems();

}