Java Event Listener for Console Application

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

public class EventListener {

 private static Map eventInstances = new HashMap();
 private static Map eventRegistry = new HashMap();
 
 /**
  * 
  * @param eventName
  * @param instance - instance of the class
  * @param method - method of the class
  */
 public static void registerEvent(String eventName, Object instance, Method method) {
  eventRegistry.put(eventName, method);
  eventInstances.put(eventName, instance);
 }
 
 public static void triggerEvent(String eventName, Object... eventData) {
  Method method = eventRegistry.get(eventName);
  Object instance = eventInstances.get(eventName);
  if(method != null) {
   try {
    method.invoke(instance, eventData);
   } catch (IllegalArgumentException e) {
    e.printStackTrace();
   } catch (IllegalAccessException e) {
    e.printStackTrace();
   } catch (InvocationTargetException e) {
    e.printStackTrace();
   }
  }
 }
 
}