Reflection & primitive arrays

Question

hello,
I call some methods with reflection.....As you know method.invoke(....) returns an instance of Object......I saw on javadoc that primitive data types are wrapped into their corrispondent object:es int->Integer......My problem is with primitive data types arrays: if I have int[] as return type and I cast Object to Integer[] I receive CastException...I tried to discover instance type with reflection, but nothing useful ( something as "[[I" )
How to solve it?
Many thanks.
Paolo                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

You may find this helpful ... it shows some of the methods that you can use to discover more about the type of an array via reflection.
import java.lang.reflect.Array;
public class PrimArrayReflect
    public static void main(String[] argv)
    throws Exception
        int[] a = new int[10];
        System.out.println(a.getClass().toString());
        System.out.println(a.getClass().isArray());
        System.out.println(a.getClass().getComponentType().toString());
        System.out.println(a.getClass().getComponentType().equals(Integer.TYPE));
        Array.setInt(a, 0, 123);
        System.out.println(a[0]);
}