Bug in asList method of class Arrays - Java Tiger

asList method of Arrays returns a list. This list corresponding to the primitive array has a odd behaviour. E.g.,

String[] sa = {"one", "two", "three", "four"};
List sList = Arrays.asList(sa);
System.out.println("size of list : " + sList.size());

This prints the size as 4. This is fine. However, the same code for primitive array produces the size as always 1.

int[] ia = {1,2,3};
List iList = Arrays.asList(ia);
System.out.println("size of primitive list : " + iList.size());

This prints the size as 1. Is this a bug?