Kann ein Response zu groß sein?

HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
post.addHeader("Connection", "keep-alive");
SessionIdRequest request = new SessionIdRequest();
StringEntity content = new StringEntity(request.toString());
content.setContentType("application/x-www-form-urlencoded");
post.setEntity(content);
HttpResponse response = client.execute(post);
if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {                
    SAXParserFactory factory = SAXParserFactory.newInstance();
    // factory.setValidating(false); // uncommenting doesnt change anything
    // create SAX-parser...
    javax.xml.parsers.SAXParser parser = factory.newSAXParser();
    // .. define our handler:
    SessionIdHandler handler = new SessionIdHandler();                
    // and parse:
    try {
        parser.parse(new InputSource(new  InputStreamReader(response.getEntity().getContent(), "ISO-8859-1")), handler);
        // hier kann per debugger gestoppt werden => keine Exception beim parsen
        handler.doSmth();
    } catch (Exception e) {
        Log.d(TAG, "error while parsing");
    }
    
}