I might be missing something, but the current signature of Collection.toArray(T[] a) allows the following incorrect code:

  Collection<Integer> l = ...;
  l.toArray( new Long[0] );

Changing the method signature to <T super E> would make the above code illegal,
while allowing all the valid uses legal.

###@###.### 2004-06-14
###@###.### 2004-06-14