How Can I Run My Java Main Method Using Maven?

Maven Run Project: Executing Java Main Methods

Developers often require the ability to manually test Java classes by executing their main methods during development. While Maven does not provide a built-in "phase" or "goal" specifically designed for this purpose, the exec maven plugin offers a convenient solution.

The exec maven plugin allows users to run Java classes using the following command:

mvn exec:java -Dexec.mainClass="com.example.Main" [-Dexec.args="argument1"] ...

If the plugin configuration is defined in your pom.xml file, the invocation can be simplified to:

mvn exec:java

Here is an example of a pom.xml configuration for the exec maven plugin:

<project>
    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>3.2.0</version>
                <configuration>
                    <mainClass>com.example.Main</mainClass>
                    <arguments>
                        <argument>argument1</argument>
                    </arguments>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Using the exec maven plugin, developers can easily execute Java classes from the command line, allowing them to manually test and debug their code during the development process.

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