Execute compute task from the command-line rather than using IDE

Author: sdarlington

README.md

@@ -154,4 +154,10 @@ merges partial results.
    ```bash
    cluster unit deploy --version 1.0.0 --path=/opt/ignite/downloads/ignite-essentials-developer-training-1.0-SNAPSHOT.jar essentialsCompute
     ```
-3. Execute the `ComputeApp` program from your IDE. 
+3. Execute the `ComputeApp` program with the following command:
+
+```shell
+mvn exec:java
+```
+
+Or run directly from your preferred IDE.

pom.xml

@@ -29,13 +29,22 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
 		<artifactId>maven-compiler-plugin</artifactId>
-		<version>3.11.0</version>
+		<version>3.14.0</version>
                 <configuration>
                     <release>11</release>
                     <source>11</source>
                     <target>11</target>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>3.5.0</version>
+                <configuration>
+                    <executable>java</executable>
+                    <mainClass>training.ComputeApp</mainClass>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>