Dynamic Type casting

Question

Can we dynamically type-cast an object reference passed to Object Clss to that specific class?
Here is what I want to do.
I am going to pass an object reference to a method, which has Object class as parameter to it, as shown below. Using getClass() or some other way, I want to dynamically typecast this reference to the original Class and call some method of this Class.
void test (Object ref1){
((ref1.getClass())ref1).writeLog();
By doing this, am I violating the basic Object Orineted rules?

Answer 1

I mean, consider an hypothetical case (which is wrong
from OO point of view) that there are suppose 10
classes in my system. None of them related to each
other, all are independent classes. But each one has a
method called, writeLog(). Now I want to write one
method which will be called by each of these classes
(in some 11th class), which will have "Object" as a
parameter. Now using the actual reference I want to
call the corresponding writeLog() method.
1 - Point out to management that the design is now officially broken.
2 - Point out that if the design is not fixed then any solution that impliments the changes will cost more to maintain in the future and will likely lead to instabilities in the system (due to complexity.)
3 - Implement one of the suggested solutions and make sure that you put in a lot of error checking and logging in the hacked solution.
4 - Produce extensive documentation about the impact of changing any of the objects that you are relying on. Push it to anyone and everyone that might ever touch or even suggest changes to the code.
Doing all of the above allows you to live stress free when the next revision breaks because someone didn't understand the implications of your hacked solution. You will be able to find the problem quickly and point out that it had nothing to do with your code but rather because someone else did not follow the complete documentation that you produced. And then when they complain that your solution was a hack you can point out that you explained that previously as well.