public void useSysexFromPatch(IPatch p) { if (p.getClass() != XMLPatch.class) {
public void useSysexFromPatch(IPatch _p) { if (!(_p instanceof XMLPatch)) {
    public void useSysexFromPatch(IPatch p) {        if (p.getClass() != XMLPatch.class) {            throw new IllegalArgumentException();        }        sysex = ((XMLPatch) p).sysex;    }