The problem comes from XMLOutputter itself:
  private void newline(Writer out) throws IOException {
     if (currentFormat.indent != null) {
        out.write(currentFormat.lineSeparator);
     }
  }
No indent, no newlines!

The easiest way to fix this is to create your own subclass of Format and
override setIndent() to distinguish between "" and null.
Here's the current code:
  public Format setIndent(String indent) {
     // if passed the empty string, change it to null, for marginal
     // performance gains later (can compare to null first instead
     // of calling equals())
     if ("".equals(indent)) {
        indent = null;
     }
     this.indent = indent;
     return this;
  }
Remove the test on "" and XMLOutputter will behave as you expect.

Laurent

wkrick@(protected) :
> I'm currently outputting my document with the PrettyFormat...
>
> Format fmt = Format.getPrettyFormat();
> fmt.setTextMode(Format.TextMode.PRESERVE);
> XMLOutputter outputter = new XMLOutputter(fmt);
>
> ...and it works as expected, outputting one start/end tag per line.
> However, when I try to remove the indents on each line like this...
>
> Format fmt = Format.getPrettyFormat();
> fmt.setTextMode(Format.TextMode.PRESERVE);
> fmt.setIndent("");
> XMLOutputter outputter = new XMLOutputter(fmt);
>
> ...it removes all indents _AND_ newlines, compressing my whole document
> into a single line of output.
>
> I'm confused...
>
> fmt.setIndent(" "); adds a two space indent
> fmt.setIndent(" "); adds a one space indent
> fmt.setIndent(""); no indent and removes newline on previous line?
>
> I'm suspecting that the problem has something to do with...
>
> fmt.setTextMode(Format.TextMode.PRESERVE);
>
> ...but I need that mode to keep padding that's present in my document.
>
>
> Basically, given a document that looks like this...
>
> <FOO><BAR>   12345</BAR><BAR>   67890</BAR></FOO>
>
> ...I need the output to look like this...
>
> <FOO>
> <BAR>   12345</BAR>
> <BAR>   67890</BAR>
> </FOO>
>
> ...instead of this...
>
> <FOO>
>  <BAR>   12345</BAR>
>  <BAR>   67890</BAR>
> </FOO>
>
> ...but I can't seem to find the magic incantation that works.
>
> Is this possible?
_______________________________________________
To control your jdom-interest membership:
http://www.jdom.org/mailman/options/jdom-interest/youraddr@(protected)