| Class | Description | |
|---|---|---|
| ConcurrencyError | The error throws when methods that have detected concurrent modification of an object when such modification is not permissible. | |
| InvalidChannelError | The error throws when an invalid channel is find. | |
| InvalidFilterError | The error throws when an invalid filter is find. | |
| NonUniqueKeyError | The error throws when a key is non unique. | |
| NoSuchElementError | Thrown by an Iterator to indicate that there are no more elements in the iteration. |