If I have a soundbank stored in a JAR, how would I load that soundbank into my application using resource loading...?

I'm trying to consolidate as much of a MIDI program into the jar file as I can, and the last thing I have to add is the soundbank file I'm using, as users won't have the soundbanks installed. I'm trying to put it into my jar file, and then load it with getResource() in the Class class, but I'm getting an InvalidMidiDataException on a soundbank that I know is valid.

Here's the code, it's in the constructor for my synthesizer object:

try {
    synth = MidiSystem.getSynthesizer();
    channels = synth.getChannels();
    instrument = MidiSystem.getSoundbank(this.getClass().getResource("img/soundbank-mid.gm")).getInstruments();
    currentInstrument = instrument[0];
    synth.loadInstrument(currentInstrument);
    synth.open();
    } catch (InvalidMidiDataException ex) {
        System.out.println("FAIL");
        instrument = synth.getAvailableInstruments();
        currentInstrument = instrument[0];
        synth.loadInstrument(currentInstrument);
        try {
            synth.open();
        } catch (MidiUnavailableException ex1) {
            Logger.getLogger(MIDISynth.class.getName()).log(Level.SEVERE, null, ex1);
        }
    } catch (IOException ex) {
        Logger.getLogger(MIDISynth.class.getName()).log(Level.SEVERE, null, ex);
    } catch (MidiUnavailableException ex) {
        Logger.getLogger(MIDISynth.class.getName()).log(Level.SEVERE, null, ex);
 }