Can I tell within my server code that a client vm has connected?

I have some server-side code and would like to modify the code path based on whether a client is connected and debugging or not. For example:
if (!isClientDebugging())
doSomething();
else
doSomethingElse();So what would go in the isClientDebugging() method? I could do something very ugly like attempt to connect to myself and if that failed due to the port not being available I could assume a client is connected. But I have to think there's a better way.

What are you trying to achieve? My client/server system uses simple socket communication. A client can connect to a server and send messages to the server. A client can change the logging state (e.g. "fine for debugging") of the server by just sending a custom command. My server holds references for each client that connected, so the server knows how many (and therefore if at all) clients are connected. If a client disconnects the server will remove it from it's list. If the client crashes the server removes it from its list the next time it pushes a message to all clients because it gets an exception for each client the is not connected anymore.
see http://java.sun.com/docs/books/tutorial/networking/sockets/index.html

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Can I tell within my server code that a client vm has connected?

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