[XERCESJ-988] getEncoding() returns null

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 2.6.2
• Component/s: SAX
• Assignee: Unassigned
• Reporter: Maarten Coene
• Created: 01/Jul/04 19:39
• Updated: 05/Jul/04 15:11
• Resolved: 05/Jul/04 15:11

Description

Hi,

I'm having problems determining the encoding declared
in the XML document using SAX. I've followed the
instructions I've found in the FAQ to retrieve the
encoding, but I always get 'null' as encoding. The
code below illustrates my problem:

import java.io.StringReader;
import java.lang.reflect.Method;
import org.apache.xerces.parsers.SAXParser;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.helpers.DefaultHandler;

public class XercesTest {

public static void main(String[] args) throws
Exception {
String xml = "<?xml version=\"1.0\"
encoding=\"UTF-8\"?>\n<root/>";
SAXParser parser = new SAXParser();
InputSource source = new InputSource(new
StringReader(xml));
parser.setContentHandler(new DefaultHandler()

{ private Locator locator; public void setDocumentLocator(Locator loc) { this.locator = loc; }

public void startDocument()

{ System.out.println("encoding: " + getEncoding(locator)); }

public void endDocument()

{ System.out.println("encoding: " + getEncoding(locator)); }

private String getEncoding(Locator loc) {
String encoding = null;
Method getEncoding = null;
try {
getEncoding =

loc.getClass().getMethod("getEncoding", new
Class[]{});
if(getEncoding != null)

{ encoding = (String)getEncoding.invoke(locator, null); }

} catch (Exception e) {
}
return encoding;
}
});
parser.parse(source);
}

}

The output of the code above is:
encoding: null
encoding: null

Maarten