Can you tell me when a AbstractMethodError occurs ?? The api says
Thrown when an application tries to call an abstract method. Normally, this error is caught by the compiler; this error can only occur at run time if the definition of some class has incompatibly changed since the currently executing method was last compiled.
I need an example situation of when this can happen at runtime ?? , I can not think of a situation where this could happen, can anyone throw light on it