Is this possible to send a java object to an obj-c, and obj-c to java via socket?

Is this possible to send a java object to an obj-c, and obj-c to java via
socket?

Ok, just a simple question, I would like to send a object via java and
obj-c. Is this possible to do so? Or I need to change the object to string
or something first, and convert it back in to the receive side? Thanks.