I'm reading "Mastering EJB" and it says "The EJB specification does not require that handles have the ability to be saved in one environment and then restored in a different environment. This means handles are not guaranteed to be portable across EJB containers, nor across machines."
I couldn't understand what it meant. My interpretation is that if we save a handle, say, in machine A and then pass it over to machine B, and then if we try to use it from machine B, it doesn't work.
If my understanding is correct, can someone please tell me why it is so?
Or, please let me know what it means in the first place?