Probleme beim einlesen von einer XML Datei

<customer>
<created-at type="datetime">2010-05-19T17:53:31+02:00</created-at>
<id type="integer">83555</id>
<name>Möppel</name>
<note>öööääää üüüü</note>
<updated-at type="datetime">2010-05-19T18:40:11+02:00</updated-at>
<archived type="boolean">false</archived>
</customer>

this.get.setURI(new URI(this.getRootURL()+"customers.xml"));
            this.get.addHeader("Content-Type", "text/xml; charset=UTF-8");
            this.response = this.client.execute(get);
            final ArrayList<Customer> customerList = new ArrayList<Customer>();
            
            final HttpEntity entity = this.response.getEntity();  
            
            int statusCode = this.response.getStatusLine().getStatusCode();
            if(statusCode == 200){
                if(entity != null){
                    InputStream is = entity.getContent();

                    InputSource iso = new InputSource(is);
                    
                    
                    SAXParserFactory spf = SAXParserFactory.newInstance();
                    SAXParser sp = spf.newSAXParser();
                    
                    XMLReader reader = sp.getXMLReader();
    
                    CustomerXMLHandler handler = new CustomerXMLHandler();
                    
                    
                    reader.setContentHandler(handler);
                    reader.parse(iso);
                    is.close();
                    sp.reset();
                    
                    customerList.addAll(handler.getCustomers());
    
                }
                
                this.responder.setData(customerList);
                this.responder.result();
            }

@Override
     public void characters(char ch[], int start, int length) {
         if(this.id){
             this.customer.setId(Integer.parseInt(new String(ch, start, length)));
         }
         else if(this.name){
             this.customer.setName(new String(ch, start, length));
         }
         else if(this.note){
             this.customer.setNote(new String(ch, start, length));
         }
         else if(this.archived){
             this.customer.setArchived(Boolean.parseBoolean(new String(ch, start, length)));
         }
         else if(this.createdAt){
             this.customer.setDate(new String(ch, start, length));
         }
     }