BAEL-2688 Allow specific app to be run from mvn

spring-amqp/pom.xml

@@ -21,4 +21,20 @@
         </dependency>
     </dependencies>
 
+    <properties>
+        <start-class>com.baeldung.springamqp.simple.HelloWorldMessageApp</start-class>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <mainClass>${start-class}</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
 </project>

spring-amqp/src/main/java/com/baeldung/springamqp/broadcast/BroadcastMessageApp.java

@@ -9,6 +9,14 @@ import org.springframework.context.annotation.Bean;
 
 import static com.baeldung.springamqp.broadcast.BroadcastConfig.*;
 
+/**
+ * Simple test application to send messages to rabbitMQ.
+ *
+ *<p>To run this particular application with mvn you use the following command:</p>
+ * {@code
+ * mvn spring-boot:run -Dstart-class=com.baeldung.springamqp.broadcast.BroadcastMessageApp
+ * }
+ */
 @SpringBootApplication
 public class BroadcastMessageApp {