There are methods on Files to obtain a Stream of lines from a file, but there is no counter part to write a Stream lines.

There exist methods to write an Iterable of lines:

    public static Path write(Path path, Iterable<? extends CharSequence> lines,
                             Charset cs, OpenOption... options)
        throws IOException

    public static Path write(Path path,
                             Iterable<? extends CharSequence> lines,
                             OpenOption... options)
        throws IOException
  
A Stream can be converted to an Iterable using s::iterator. Stream.iterator() is considered more of an escape hatch (and there are also some awkward edge cases for target type matching that require a cast for a method reference to be used directly with the above write methods).

Similar methods can be added that accept Stream<? extends CharSequence>. Overloads can probably be used, since a class implementing Stream and Iterable is arguably confused in the contract it supports for traversal. Alternatively a different method name can be used, such as writeLines.