pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>cistern</groupId>
    <artifactId>cistern</artifactId>
    <version>1.0.3</version>
    <properties>
        <gradle.version>7.</gradle.version>
        <marmot.dir>${project.basedir}/marmot</marmot.dir>
    </properties>

    <build>
        <plugins>

            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <execution>
                        <id>gradle-build</id>
                        <phase>package</phase>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <configuration>
                            <executable>./marmot/gradlew</executable>
                            <workingDirectory>${marmot.dir}</workingDirectory>
                            <arguments>
                                <argument>build</argument>
                            </arguments>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <artifactId>maven-install-plugin</artifactId>
                <groupId>org.apache.maven.plugins</groupId>
                <version>3.1.1</version>

                <configuration>
                    <allowIncompleteProjects>true</allowIncompleteProjects>
                </configuration>
              </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy-artifact</id>
                        <phase>install</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>cistern</groupId>
                                    <artifactId>cistern</artifactId>
                                    <version>snapshot</version>
                                    <type>${project.packaging}</type>
                                </artifactItem>
                            </artifactItems>
                            <outputDirectory>target</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>