413         check(c.isEmpty());

   413         check(c.isEmpty());

   414         equal(c.size(), 0);

   414         equal(c.size(), 0);

   415         equal(c.toString(),"[]");

   415         equal(c.toString(),"[]");

   416         equal(c.toArray().length, 0);

   416         equal(c.toArray().length, 0);

   417         equal(c.toArray(new Object[0]).length, 0);

   417         equal(c.toArray(new Object[0]).length, 0);

   418         check(c.toArray(new Object[]{42})[0] == null);

   419         check(c.toArray(new Object[]{42})[0] == null);

   419 

   420 

   420         Object[] a = new Object[1]; a[0] = Boolean.TRUE;

   421         Object[] a = new Object[1]; a[0] = Boolean.TRUE;

   421         equal(c.toArray(a), a);

   422         equal(c.toArray(a), a);

   422         equal(a[0], null);

   423         equal(a[0], null);

   686                 Integer[] a = c.toArray(new Integer[size]);

   687                 Integer[] a = c.toArray(new Integer[size]);

   687                 check((size > c.size()) || a.length == c.size());

   688                 check((size > c.size()) || a.length == c.size());

   688                 int i = 0; for (Integer j : c) check(a[i++] == j);

   689                 int i = 0; for (Integer j : c) check(a[i++] == j);

   689                 check((size <= c.size()) || (a[c.size()] == null));

   690                 check((size <= c.size()) || (a[c.size()] == null));

   690                 check(a.getClass() == Integer[].class);

   691                 check(a.getClass() == Integer[].class);

   691             }

   699             }

   692 

   700 

   693             check(c.equals(c));

   701             check(c.equals(c));

   694             if (c instanceof Serializable) {

   702             if (c instanceof Serializable) {

   695                 //System.out.printf("Serializing %s%n", c.getClass().getName());

   703                 //System.out.printf("Serializing %s%n", c.getClass().getName());