| Class | Description | 
|---|---|
| MessageGenerator | 
 Generates localized messages. 
 | 
| Exception | Description | 
|---|---|
| AttributeException | 
 Exceptions that arise processing the attributes of a symbol or token. 
 | 
| CoffeeGrinderException | 
 Exceptions raised by this API. 
 | 
| CompilerException | 
 Compiler exceptions. 
 | 
| ForestException | 
 Exceptions that arise processing the shared packed parse forest (SPPF). 
 | 
| GrammarException | 
 Grammar exceptions. 
 | 
| ParseException | 
 Parse exceptions. 
 | 
| TreeWalkerException | 
 Tree walking exceptions. 
 | 
The classes in this package are the exceptions thrown by the API.