| class  | AbstractMethodError | Thrown when an application tries to call an abstract method. | 
| class  | IllegalAccessError | Thrown if an application attempts to access or modify a field, or
 to call a method that it does not have access to. | 
| class  | InstantiationError | Thrown when an application tries to use the Java newconstruct to instantiate an abstract class or an interface. | 
| class  | NoSuchFieldError | Thrown if an application tries to access or modify a specified
 field of an object, and that object no longer has that field. | 
| class  | NoSuchMethodError | Thrown if an application tries to call a specified method of a
 class (either static or instance), and that class no longer has a
 definition of that method. |