[SORRY] exec command problem for shell scripting

I know this is not an appropriate place to ask questions about shell programming, but I have tried many other places... and no helpful help yet. So, here I am.
I am writing a simple shell script that would actually execute a java application. However, I want to give the users the option of running it in background. So,
COMMAND="java blahblah"
DAEMON="&"
exec "$COMMAND $DAEMON"
But, when I run it, it spits out an error message saying something like "Invalid agrument: &".
Is there a way to exec'ing "java blahblah &" using variables as arguments to "exec" command???
OR is it even NOT possible?
This problem seems so trivial, but took a man out of me. :( Please help.
thanks
yosep

execute a java application. However, I want to give
the users the option of running it in background. It doesn't generally make sense to exec an ansynchronous process, and one can introduce varying errors in this method. Just simply drop the exec. The java process will async off and the shell script will exit leaving no shell process running. Simple as that.
BTW, you generally exec a java process if you wish to replace the shell with the java process, but then the async request is given at the caller, she who actually calls the script (genarally from an interactive shell).

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Message was edited by: BobHarris

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[SORRY] exec command problem for shell scripting

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