Argument type mismatch when attempting to invoke method

Say I have a parameters array:

Object[] parameters;

I also have a types list, that stores parameter types of a method.

List<Class<?>> types = Arrays.asList(Taxi.class, Bus.class);

Now, I fill the parameters array, with the given types in the types list:

int index = 0;
for (Class<?> type : types) {
    if (Taxi.class.isAssignableFrom(type)) {
        parameters[index] = new Taxi();
    } else if (Bus.class.isAssignableFrom(type)) {
        parameters[index] = new Bus();
    } 
    index ++;
}

Now I try to invoke the method that has the exactly same parameters as the types list:

someMethod.invoke(someObject, parameters);

And Java gives me an IllegalArgumentException: argument type mismatch. I understand why would this happen, as parameters is an Object array; are there any workarounds, though? Maybe like casting? But how?