Checks if this container is empty. @return true if this container has no contents @throws NullValueException if this container is an Ion null value
()
| 79 | * <code>null</code> value |
| 80 | */ |
| 81 | public boolean isEmpty() |
| 82 | throws NullValueException; |
| 83 | |
| 84 | /** |
no outgoing calls