i want to create a chat server similary to yahoo user
room.using j2ee.but i get a problem.the server as to retain all
clients information(ip adress etc).and server receives a message it
has to send to other clients(by itself.reciver client does not know
when the msg comes.so it does not send any request).
we any one as idea of how server can send inforamtion to
client(without client request).it will be of great help.