test convert object array

public class TestAnything {

    public static void main(String[] args) throws Exception {
        Object[] a = new Object[2];
        a[0] = (Object)"aaaa";
        a[1] = (Object)"bbbb";
        String[] b = convertLsy(a, String.class);
    }

    private static <T> T[] convertLsy(Object[] a, Class<T> cls) {
        T[] b = (T[])Array.newInstance(cls, a.length);
        b = (T[])a;
        return b;
    }

    private static <T> T[] convertCzx(Object[] a, Class cls) {
        T[] b = (T[])Array.newInstance(cls, a.length);
        for (int i = 0; i < a.length; i++) {
            b[i] = (T)a[i];
        }
        return b;
    }

}