void checkEmpty(BlockingQueue q) {
   try {
     assertTrue(q.isEmpty());
     assertEquals(0, q.size());
     assertNull(q.peek());
     assertNull(q.poll());
     assertNull(q.poll(0, MILLISECONDS));
     assertEquals("[]", q.toString());
     assertTrue(Arrays.equals(q.toArray(), new Object[0]));
     assertFalse(q.iterator().hasNext());
     try {
       q.element();
       shouldThrow();
     } catch (NoSuchElementException success) {
     }
     try {
       q.iterator().next();
       shouldThrow();
     } catch (NoSuchElementException success) {
     }
     try {
       q.remove();
       shouldThrow();
     } catch (NoSuchElementException success) {
     }
   } catch (InterruptedException ie) {
     threadUnexpectedException(ie);
   }
 }
Exemple #2
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 @Override
 public T element() {
   return delegate.element();
 }
 @Override
 public E element() {
   return localInternalQueue.element();
 }