java.lang.Object | +----java.lang.Throwable | +----java.lang.Error | +----java.lang.LinkageError | +----java.lang.IncompatibleClassChangeError | +----java.lang.AbstractMethodError
public class AbstractMethodError
extends IncompatibleClassChangeError
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.