Blackberry InputStream Closes Prematurely - blackberry

Question

The following code is used to get an XML file from a web server, and today, for the last few runs, this throws an exception with an error message "stream close." I have not modified this code since yesterday, nor have I modified any methods that handle the parsing.
The idea is this builds a list of item from the XML file pulled from the fullurl. There should 20 items in the list (based on the XML file I am using right now). In the last few runs, the parsing operation has thrown the exception mentioned above, and only stores 5 items. The method public void endDocument() never gets called.
Any thoughts would be helpful, since this will have to be moved to a background task, and I would like to have solved before I do that.
public void getAndParseXML() {
HttpConnection xmlcon = null;
InputStream xmlinput = null;
SAXParserFactory spf = null;
String fullurl = this.getNewsUrl() + NewsListBuilderTask.CONNECTION_STRING; // URL of XML file along specification for connection type
if ( (TransportInfo.isTransportTypeAvailable(TransportInfo.TRANSPORT_TCP_WIFI)) && (TransportInfo.hasSufficientCoverage(TransportInfo.TRANSPORT_TCP_WIFI)) )
fullurl += NewsListBuilderTask.WIFI_STRING;
try {
xmlcon = (HttpConnection)Connector.open( fullurl, Connector.READ, false ); // open connection to XML source
spf = SAXParserFactory.newInstance(); // set up xml parsers
xmlinput = xmlcon.openInputStream(); // set up input stream
SAXParser saxparser = spf.newSAXParser(); // create a new parser object
saxparser.parse( xmlinput, this ); // parse operations start here
}
catch( IOException ex ) {
System.out.println( "IOException Caught:\t" + ex.getMessage() ); // set a default item if any exception occurs with retreiving or parsing XML file
this.createDefaultItem();
}
catch (SAXException ex) {
System.out.println( "SAXException Caught:\t" + ex.getMessage() );
ex.printStackTrace();
this.createDefaultItem();
}
catch ( IllegalArgumentException ex ) {
System.out.println( "IllegalArgumentException Caught:\t" + ex.getMessage() );
ex.printStackTrace();
this.createDefaultItem();
}
catch (ParserConfigurationException ex) {
System.out.println( "ParserConfigurationException Caught:\t" + ex.getMessage() );
ex.printStackTrace();
this.createDefaultItem();
}
finally {
if ( xmlinput != null) {
try {
xmlinput.close(); // attempt to close all connections
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if ( xmlcon != null ) {
try {
xmlcon.close();
}
catch ( IOException ex ) {
ex.printStackTrace();
}
}
}
}
NOTE: The fullurl used ends up bieng "http://somexmlfile.com?type=photo;deviceside=true" with ";interface=wifi" appended if available.