RequestFuture

[google]

RequestFuture

[jpd236]

Since RequestFuture implements the standard Java Future interface, get() has to throw an ExecutionException. Not an oversight, but an intentional design choice to be interoperable with Future.

It's not perfectly clean, but the safe thing to do is:

try {
  ...
} catch (ExecutionException e) {
  if (e.getCause() instanceof VolleyError) {
    VolleyError volleyError = (VolleyError) e.getCause();
    // Handle the VolleyError
  }
  // Handle other errors
}

It's actually guaranteed by the current implementation that e.getCause() can only be a VolleyError, so you could skip the getCause() check and other error handling as they're actually impossible, but this would be relying on a Volley implementation detail so I would suggest the instanceof check for safety's sake.