Example POM for multi-module Maven projects in Java 9

multi-module-pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>com.github.repaj.my-project</groupId>
    <artifactId>my-project</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.9</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.10.19</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.hamcrest</groupId>
            <artifactId>hamcrest-all</artifactId>
            <version>1.3</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <name>my-project</name>
    <description>My description</description>
    <url>https://github.com/repaj/my-project</url>

    <scm>
        <url>https://github.com/repaj/my-project/</url>
        <connection>scm:git:https://github.com/repaj/my-project.git</connection>
        <developerConnection>scm:git:git@github.com:repaj/my-project.git</developerConnection>
        <tag>HEAD</tag>
    </scm>

    <issueManagement>
        <system>GitHub Issues</system>
        <url>https://github.com/repaj/my-project/issues</url>
    </issueManagement>

    <licenses>
        <license>
            <name>MIT License</name>
            <url>https://opensource.org/licenses/MIT</url>
        </license>
    </licenses>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>9</java.version>
    </properties>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.7.0</version>
                    <configuration>
                        <compilerVersion>${java.version}</compilerVersion>
                        <source>${java.version}</source>
                        <target>${java.version}</target>
                        <release>${java.version}</release>
                        <showWarnings>true</showWarnings>
                        <showDeprecation>true</showDeprecation>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-javadoc-plugin</artifactId>
                    <version>3.0.0</version>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-jar-plugin</artifactId>
                    <version>3.0.2</version>
                </plugin>
                <plugin>
                    <groupId>org.apache.felix</groupId>
                    <artifactId>maven-bundle-plugin</artifactId>
                    <version>3.5.0</version>
                    <inherited>true</inherited>
                </plugin>
            </plugins>
        </pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-release-plugin</artifactId>
                <version>2.5.3</version>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.maven.scm</groupId>
                        <artifactId>maven-scm-provider-jgit</artifactId>
                        <version>1.9.5</version>
                    </dependency>
                </dependencies>
                <configuration>
                    <autoVersionSubmodules>true</autoVersionSubmodules>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>