CODEWITHSUNDEEP
javamaven
Flame_Phoenix
Flame_Phoenix

Reputation: 17574

How to Configure pom.xml to run 2 java mains in 1 Maven project

I have a Maven project and it has 2 mains (MyTestApp_A, and MyTestApp_B) inside one of the packages from the src folder.

I can run these "main" classes in Eclipse if I open them and click the run button. However, Eclipse is bugged, and so I actually need to run these two classes on a command line using Maven.

I have never used Maven before, but after asking for help and doing some research I understand that I have to change the pom.xml file.

Consequently, I have altered my pom.xml file successfully to run one of the apps using the command mvn exec:java -Dexec.mainClass="servers.MyTestApp_B":

    <plugins>
        <!-- Allows the example to be run via 'mvn compile exec:java' -->
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>1.2.1</version>

            <configuration>
                <mainClass>servers.MyTestApp_A</mainClass>
                <includePluginDependencies>false</includePluginDependencies>
            </configuration>


        </plugin>

    </plugins>

Happy with being able to run MyTestApp_A, I tried to add another configuration part to run MyTestApp_B:

    <plugins>
        <!-- Allows the example to be run via 'mvn compile exec:java' -->
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>1.2.1</version>

            <configuration>
                <mainClass>servers.MyTestApp_A</mainClass>
                <includePluginDependencies>false</includePluginDependencies>
            </configuration>
            <configuration>
                <mainClass>servers.MyTestApp_B</mainClass>
                <includePluginDependencies>false</includePluginDependencies>
            </configuration>

        </plugin>

    </plugins>

However, This file is not well formed. Apparently I am not allowed to have 2 <configuration> tags in the same pom.xml file.

So, how can I execute MyTestApp_A, and MyTestApp_B using Maven? How do I configure the pom.xml file?

Upvotes: 3

Views: 7177

Answers (1)

Kai Sternad
Kai Sternad

Reputation: 22830

Try using executions for each main class you want to execute:

<plugins>
    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>1.2.1</version>
        <executions>
            <execution>
                <id>MyTestApp_A</id>
                <goals>
                    <goal>java</goal>
                </goals>
                <configuration>
                    <mainClass>servers.MyTestApp_A</mainClass>
                    <includePluginDependencies>false</includePluginDependencies>
                </configuration>
            </execution>
            <execution>
                <id>MyTestApp_B</id>
                <goals>
                    <goal>java</goal>
                </goals>
                <configuration>
                    <mainClass>servers.MyTestApp_B</mainClass>
                    <includePluginDependencies>false</includePluginDependencies>
                </configuration>
            </execution>
        </executions>
    </plugin>
</plugins>

Upvotes: 6

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