[TIMOB-3094] Android: NumberFormatException if cached file does not have a content-length

Failcase app.js:

Titanium.UI.setBackgroundColor('#000');
var win = Titanium.UI.createWindow({  
    title:'Test',
    backgroundColor:'#000',
    exitOnClose: true
});
var thisURL = "module=MultiSites&action=getEvolutionGraph&period=day&date=2011-01-04,2011-02-02&evolutionBy=visits&columns=nb_visits&idSite=7&idsite=7&viewDataTable=sparkline";

var paramArray = thisURL.split("&");
for(var i=0,ilen=paramArray.length;i<ilen;i++){
    var thisKeyValue = paramArray[i].split("=");
    thisKeyValue[1] = Ti.Network.encodeURIComponent(thisKeyValue[1]);
    paramArray[i] = thisKeyValue.join("=");
}
var encodedURI = paramArray.join("&");
var encodedURL = "http://demo.piwik.org/index.php?" + encodedURI;
Ti.API.info(encodedURL);

var imageView = Ti.UI.createImageView({
    image: encodedURL
});
 
win.add(imageView);
win.open();

This app will crash when you run it.