And the **container** itself (in contrast to the **container image**) is the actual running instance of the image, comparable to a **process**. In fact, a container is running only when it has a **process running** (and normally it's only a single process). The container stops when there's no process running in it.

## Container Images { #container-images }

      new ListenerCallQueue.Event<Listener>() {
        @Override
        public void call(Listener listener) {
          listener.running();
        }

        @Override
        public String toString() {
          return "running()";
        }
      };
  private static final ListenerCallQueue.Event<Listener> STOPPING_FROM_STARTING_EVENT =
      stoppingEvent(STARTING);

     *
     * <p>This will be called at most once after all the services have entered the {@linkplain
     * State#RUNNING running} state. If any services fail during start up or {@linkplain
     * State#FAILED fail}/{@linkplain State#TERMINATED terminate} before all other services have
     * started {@linkplain State#RUNNING running} then this method will not be called.
     */
    public void healthy() {}

    /**

research](https://scholar.google.com/scholar?q=gpu+side+channel) shows that it
might be possible to use side channel attacks on the GPU to leak data from other
running models or processes in the same system. GPUs can also have
implementation bugs that might allow attackers to leave malicious code running
and leak or tamper with applications from other users. Please report
vulnerabilities to the vendor of the affected hardware accelerator.

         * Executes the crawling thread.
         * Sets the running flag, processes the data store, and ensures
         * proper cleanup regardless of success or failure.
         */
        @Override
        public void run() {
            running = true;
            try {
                process();
            } finally {
                running = false;
                finished = true;
            }
        }

    String result;
    if (state == DONE) {
      result = "running=[DONE]";
    } else if (state instanceof Blocker) {
      result = "running=[INTERRUPTED]";
    } else if (state instanceof Thread) {
      // getName is final on Thread, no need to worry about exceptions
      result = "running=[RUNNING ON " + ((Thread) state).getName() + "]";
    } else {
      result = "running=[NOT STARTED YET]";
    }

        }
        super.tearDown();
    }

    public void test_getStatus_returnsCorrectValue() {
        // Since we cannot easily create a real ClusterHealthResponse without a running cluster,
        // we'll test the class behavior through unit tests that verify the logic
        // The actual integration with ClusterHealthResponse is tested in integration tests

 */
public class MockWitnessService implements AutoCloseable {
    private static final Logger log = LoggerFactory.getLogger(MockWitnessService.class);

    private ServerSocket serverSocket;
    private final AtomicBoolean running = new AtomicBoolean(false);
    private final AtomicInteger registrationCounter = new AtomicInteger(0);
    private final ConcurrentHashMap<String, MockRegistration> registrations = new ConcurrentHashMap<>();

        }

        public void setPreference(String preference) {
            this.preference = preference;
        }

        public void setRouting(String routing) {
            this.routing = routing;
        }

        public void setSearchType(String searchType) {
            this.searchType = searchType;
        }

        public void setTimeoutInMillis(long timeoutInMillis) {

        }

        public void setPreference(String preference) {
            this.preference = preference;
        }

        public void setRouting(String routing) {
            this.routing = routing;
        }

        public void setSearchType(String searchType) {
            this.searchType = searchType;
        }

        public void setTimeoutInMillis(long timeoutInMillis) {