Unreachable catch block for IOException. This exception is never thrown from the try statement body

what would be correct?

My console throws this:

java.io.IOException: Server returned HTTP response code: 403 for URL: http://maps.googleapis.com/maps/api/streetview?size=640x640&location=40.416702,%20-86.87529&fov=90&heading=235&pitch=10&sensor=false

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1436)

at java.net.URL.openStream(URL.java:1010)

at processing.core.PApplet.createInputRaw(Unknown Source)

at processing.core.PApplet.createInput(Unknown Source)

at processing.core.PApplet.loadBytes(Unknown Source)

at processing.core.PApplet.loadImage(Unknown Source)

at processing.core.PApplet.loadImage(Unknown Source)

at MyFirstClass.getStreetViewImage(MyFirstClass.java:147)

at MyFirstClass.loadStreetViewImages(MyFirstClass.java:562)

at MyFirstClass.setup(MyFirstClass.java:78)

at processing.core.PApplet.handleDraw(Unknown Source)

at processing.core.PApplet.run(Unknown Source)

at java.lang.Thread.run( Thread.java:680) 

1. public PImage getStreetViewImage(float lat, float lon) {

   int w = 640;

   int h = 640;

   int fov = 90;

   int heading = 235;

   int pitch = 10;

   boolean sensor = false;

   PImage img;

   try {

   img = loadImage("http://maps.googleapis.com/maps/api/streetview?size=" + w + "x" + h + "&location=" + lat + ",%20" + lon + "&fov=" + fov + "&heading=" + heading + "&pitch=" + pitch + "&sensor=" + sensor, "jpg");

   } catch(IOException e) {

   return null;

   }

   return img;

   }

I know i could check for null but then my console keeps giving the errors, and i'm expecting a lot of nulls then.
(due a query limit).