Casting Exception for Generic Arrays in Java

Question

I am trying to create a generic Array in Java below the code snippet.

static<T extends Comparable<? super T>> T[] exactlyOnce(T[] A){
      T[] temp , B;
      temp = (T[])new Object[A.length];
      B = (T[])new Object[A.length];
   //Rest of the code follows
}

It produces following exception not sure on how to resolve this.

Exception in thread "main" java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.Comparable;