Cleanup exception handling

Cleanup exception handling

This changes the server side code not to save an exception and
rethrow it in the "finally" block. The "finally" block is
guaranteed to always run regardless of wether the exception
is temporarily held back. So instead of doing:

	Exception ex = null;
	try {
		/* main code */
	} catch (Exception e) {
		ex = e;
	} finally {
		/* cleanup code */
		if (ex != null)
			throw ex;
	}

we now do:

	try {
		/* main code */
	} finally {
		/* cleanup code */
	}