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Pound sign in FileName - When saving an xml document using Transformer and StreamResult

Posted on 2011-09-08
Last Modified: 2012-06-22
Ran into a percular problem today.  When saving an xml file that has a '#' character in it the file is save up to the point of the hash.  For example.  'Test #2.xml' would be saved as 'Test'.

I created a short program below to demonstrate the problem.
import java.io.File;

import javax.swing.JFileChooser;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class saveFile {

	public static void main(String[] args) {
	   try {
		   JFileChooser chooser = new JFileChooser();
			chooser.setDialogTitle("Save Project");
			File file = null;
			if(chooser.showDialog(null, "Save") == JFileChooser.APPROVE_OPTION){
				file = chooser.getSelectedFile();

				DocumentBuilderFactory dbfac = DocumentBuilderFactory.newInstance();
				DocumentBuilder docBuilder = dbfac.newDocumentBuilder();
				Document doc = docBuilder.newDocument();
				Element project = doc.createElement("project");
				project.setAttribute("title", "test");
				Source source = new DOMSource(doc);
				Result result = new StreamResult(file);
				Transformer xformer = TransformerFactory.newInstance().newTransformer();
				xformer.transform(source, result);
	   } catch (Exception ex){


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Question by:infinidem
  • 4
  • 4
  • 2
  • +1
LVL 86

Expert Comment

ID: 36504727
Are you sure it's not more to do with the space?

Author Comment

ID: 36504759
positive - "Test White Space.xml" is fine. while "Test White Space #2.xml" will be written to disk as "Test White Space"
LVL 86

Expert Comment

ID: 36504810
On which OS?
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Author Comment

ID: 36504845
Windows 7 64 bit.

Author Comment

ID: 36504881
also on Mac OSX (10.6.8)
LVL 47

Accepted Solution

for_yan earned 500 total points
ID: 36504969
this seeems to be something similar to your problem in TransfioomFactory or something

pound sign may be a problem in the filename when it is used in the link on the web
(as poud is used to point to some location on the pag)
LVL 16

Expert Comment

by:Bryan Butler
ID: 36505464
for_yan is right.  His link has this link in it which explains the issue:


And seaching for "java "pound sign" path bug", it looks like it's still a problem 10+ years later.
LVL 47

Expert Comment

ID: 36505498
yes, and though they say there is a workarond there it seems that workaround is - don't use pound
LVL 86

Expert Comment

ID: 36506329

is not relevant, as

a. the StreamResult ctor is the one in question here, not StreamSource
b. the parameter is of type File anyway, not String
LVL 86

Expert Comment

ID: 36506514
In fact, if you do the very reverse of what is suggested at the link that for_yan posted (use String and not File), you'll probably have not problem (i don't)

Result result = new StreamResult(file.getAbsolutePath());
                Transformer xformer = TransformerFactory.newInstance()
                xformer.transform(source, result);

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Author Comment

ID: 36506695
But the link to the big  within that page is.

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