core-it-suite/src/test/resources/mng-7891-extension-configuration/extension/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.1.0" root="true">
  <groupId>org.apache.maven.its.mng7891</groupId>
  <artifactId>extension</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <properties>
    <javaVersion>8</javaVersion>
    <maven.compiler.source>${javaVersion}</maven.compiler.source>
    <maven.compiler.target>${javaVersion}</maven.compiler.target>
    <maven.version>3.8.6</maven.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-core</artifactId>
      <version>${maven.version}</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.eclipse.sisu</groupId>
        <artifactId>sisu-maven-plugin</artifactId>
        <version>0.3.5</version>
        <executions>
          <execution>
            <id>index-project</id>
            <goals>
              <goal>main-index</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</project>