Question about inheritance in Java

[Xeel]

I am writing a small bean manager and I was wondering if it is possible to extend Object class to make new methods apply to my beans without having each bean implement my extended class.

for example I have a fieldset copying method which scans source and target beans for similar fields and types and copies values from one bean to the other:

public static Object map(Object beanA, Object beanB) {
  Class<?> classA = beanA.getClass();
  Class<?> classB = beanB.getClass();
  Field[] fieldsetA = classA.getDeclaredFields();
  Field[] fieldsetB = classB.getDeclaredFields();
  try {
    for (Field fieldA : fieldsetA) {
      for (Field fieldB : fieldsetB) {
        if (fieldA.getName().equals(fieldB.getName()) && fieldA.getType() == fieldB.getType()) {
          String setterName = "set" + capitalize(fieldB.getName());
          String getterName = (fieldA.getType().getName().equals("boolean") ? "is" : "get") + capitalize(fieldA.getName());
          Method getter = classA.getDeclaredMethod(getterName);
          Method setter = classB.getDeclaredMethod(setterName, fieldB.getType());
          setter.invoke(beanB, getter.invoke(beanA));
        }
      }
    }
  } catch (Exception e) {
    System.out.println(e.getMessage());
    e.printStackTrace(System.out);
  }
  return beanB;
}

So later I use:

beanB = (BeanB)map(beanA,beanB);

It works. Still what I would like is to be able to apply map method to a bean2 object directly without needs of casting and mentioning bean2 twice. Something like this:

beanB.map(beanA);

Is it possible without implementing my extended class in every bean explicitly? Or have I recompile the JDK Object class and use my own JDK distro?