Spring boot - sharing embedded JMS broker with separate service

I have two services which should communicate with each other via ActiveMQ. Everything works nicely when I have the receiver and sender in one service but when I split them, I got a strange activemq exception.

This is configuration of service A:

@EnableScheduling
@SpringBootApplication
@EnableJms
public class App extends SpringBootServletInitializer {

  private static final Logger log = LoggerFactory.getLogger(App.class);

  @Autowired
  private static JmsTemplate jms;

  public static void main(String[] args) {
    SpringApplication.run(App.class, args);
  }

}

Sending messages:

  @Autowired
  private JmsTemplate jms;

  public void sendTicket(Reservation reservation) {
    log.debug("---------------sending message----------------");
    // Send a message
    jms.send("mailbox-destination", new MessageCreator() {
      public ObjectMessage createMessage(Session session) throws JMSException {
        ObjectMessage message = session.createObjectMessage();
        message.setObject(reservation);
        return message;
      }
    });
  }

The JMS is configured as in-memory queue:

spring.activemq.in-memory=true
spring.activemq.pooled=false

Service B is similar but id does not define the JmsContainerFactory. It only has the receiver:

@Component
public class Receiver {

  private static final Logger log = LoggerFactory.getLogger(Receiver.class);

  /**
   * Receive a message with reservation and print it out as a e-ticket.
   * 
   * @param reservation
   */
  @JmsListener(destination = "mailbox-destination")
  public void receiveMessage(Reservation reservation) {
    log.info("Received <" + reservation.getId() + ">");
  }
}

Service A have JMS and ActiveMQ broker as maven dependencies:

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-broker</artifactId>
        </dependency>

Service B has only the JMS dependency.

Could you give me a hint how to share the bean between both services and send messages between them? I am completely new to this topic.

I am getting the following exception when receiving a message

org.springframework.jms.UncategorizedJmsException: Uncategorized exception occured during JMS processing; nested exception is javax.jms.JMSException: Could not create Transport. Reason: javax.management.InstanceAlreadyExistsException: org.apache.activemq:type=Broker,brokerName=localhost

EDIT: If I remove the broker dependency from one of the services, the Tomcat does not even start:

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:917)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:439)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:769)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:625)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:351)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1399)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:925)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 common frames omitted