Added commented code which could help in debugging the processing of requests containing non UTF-8 characters like A-umlaut.

src/altk/comm/engine/XMLDOMBroadcast.java

@@ -3,6 +3,7 @@ package altk.comm.engine;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Vector;
@@ -11,6 +12,9 @@ import java.util.zip.ZipInputStream;
 import javax.servlet.http.HttpServletRequest;
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
 import javax.xml.xpath.XPath;
 import javax.xml.xpath.XPathConstants;
 import javax.xml.xpath.XPathExpressionException;
@@ -21,7 +25,9 @@ import org.w3c.dom.Element;
 import org.w3c.dom.NamedNodeMap;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
+import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
 
 import altk.comm.engine.exception.BroadcastError;
 import altk.comm.engine.exception.BroadcastException;
@@ -94,6 +100,28 @@ public abstract class XMLDOMBroadcast extends Broadcast
             {
                 inb = request.getInputStream();
             }
+            /*
+             // alternate code to find out where are the offending characters in input
+            myLogger.info("Begin parsing");
+            SAXParser parser;
+            try
+            {
+                parser = SAXParserFactory.newInstance().newSAXParser();
+                // constructs an empty ArrayList for use by parser.
+                // Convert InputStream inb into InputSource, using the UTF-8
+                // character set, and for use by SAX parser
+                InputSource is = new InputSource(new InputStreamReader(inb, "UTF-8"));
+                
+                DefaultHandler parserHandler = new DefaultHandler();
+                parser.parse(is, parserHandler);
+            }
+            catch (ParserConfigurationException e)
+            {
+                // TODO Auto-generated catch block
+                e.printStackTrace();
+            }
+            
+            */
             int contentLength = request.getContentLength();
             CommonLogger.activity.info("Receiving " + contentLength + " bytes of data");
             byte[] content = new byte[contentLength];