@Override
    public void removeDataConnection(String name) {
        dataConnections.computeIfPresent(name, (k, v) -> {
            if (CONFIG == v.source) {
                throw new HazelcastException("Data connection '" + name + "' is configured via Config "
                        + "and can't be removed");
            }
            v.instance.release();
            return null;
        });
    }
@Test
    public void remove_non_existing_data_connection_should_be_no_op() {
        dataConnectionService.removeDataConnection("does-not-exist");
    }