The Jetty Maven Plugin is a Maven plugin that allows you to run and test your web application in Jetty, a lightweight and highly scalable Java-based web server and servlet container. It provides a simple way to deploy web applications during development and testing, without needing to install and configure a separate web server.

To use the Jetty Maven Plugin in your project, you need to add the following plugin configuration to your pom.xml file:

<build>
  <plugins>
    <plugin>
      <groupId>org.eclipse.jetty</groupId>
      <artifactId>jetty-maven-plugin</artifactId>
      <version>9.4.38.v20210224</version>
      <configuration>
        <webApp>
          <contextPath>/</contextPath>
        </webApp>
        <httpConnector>
          <port>8080</port>
        </httpConnector>
      </configuration>
    </plugin>
  </plugins>
</build>

This configuration sets up the Jetty Maven Plugin to run your web application on port 8080, with the context path set to /. Once you have configured the plugin, you can start Jetty by running the following command:

mvn jetty:run

This will start Jetty and deploy your web application to it. You can then access your web application by opening a web browser and navigating to http://localhost:8080/.

The Jetty Maven Plugin provides a number of other configuration options, such as configuring SSL, setting up custom error pages, and specifying additional classpaths. You can find more information about the available options in the plugin's documentation.