Return an Object array for the given object in Java

/*from www  . j a  v a 2 s  .  c  o  m*/
import java.lang.reflect.Array;
import java.util.Arrays;

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 * Lesser General Public License for more details.
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 */

public class Main {
  public static void main(String[] argv) {
    System.out.println(Arrays.toString(toArray("abc")));
  }

  /**
   * @return an Object array for the given object.
   * 
   * @param obj
   *            Object to convert to an array. Converts primitive arrays to
   *            Object arrays consisting of their wrapper classes. If the
   *            object is not an array (object or primitve) then a new array
   *            of the given type is created and the object is set as the sole
   *            element.
   */
  public static Object[] toArray(final Object obj) {
    // if the object is an array, the cast and return it.
    if (obj instanceof Object[]) {
      return (Object[]) obj;
    }

    // if the object is an array of primitives then wrap the array
    Class type = obj.getClass();
    Object array;
    if (type.isArray()) {
      int length = Array.getLength(obj);
      Class componentType = type.getComponentType();
      array = Array.newInstance(componentType, length);
      for (int i = 0; i < length; i++) {
        Array.set(array, i, Array.get(obj, i));
      }
    } else {
      array = Array.newInstance(type, 1);
      Array.set(array, 0, obj);
    }

    return (Object[]) array;
  }
}