* <ul>
 * <li>{@link #start()} allowed when state is INIT</li>
 * <li>{@link #abort()} allowed when state is STARTED or DETACHED</li>
 * </ul>
 */
public class DefaultExecHandle implements ExecHandle, ProcessSettings {

    private static final Logger LOGGER = Logging.getLogger(DefaultExecHandle.class);

    private static final Joiner ARGUMENT_JOINER = Joiner.on(' ').useForNull("null");

    private final String displayName;