Naming service in Java

[Matty2002]

Hi
I need to design a Naming Service for a distributed system, the system needs to identify an object by an identifier, it's name.
From this name, the name service provides a runtime mechanism for deriving the address (location) of the required object.
The name service will respond to a number of requests:

Register an object - This request takes at least two parameters, the name of the object and the address of that object.

Unregister an Object - This request is the opposite of the previous request with an entry being removed from the server’s database.

Map name: This request accepts a name and returns the corresponding address (if the name is present) and any appropriate attributes.

All requests return a result, which includes appropriate errors
I want to code this in java
Any help will be appreciated

Thanks!

Matt