Fiddling with error behavior in Java

ErrorBehavior.java

public abstract class ErrorBehavior<T extends Exception> {

    public abstract void handle(T e);

    public class SilentErrorBehavior extends ErrorBehavior {

        @Override
        public void handle(T e) {
        }
    }

    public class DebugErrorBehavior extends ErrorBehavior {

        private final Logger log;

        public DebugErrorBehavior(Logger log) {
            this.log = log;
        }
        @Override
        public void handle(T e) {
            log.debug(stringify(e));
        }
    }

    public class ThrowErrorBehavior extends ErrorBehavior {

        @Override
        public void handle(T e) {
            throw new RuntimeException(e);  //this isn't very polite Java
        }
    }

    private String stringify(Exception e) {
        return e.getMessage(); //maybe other stuff would happen here?
    }
}