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.chris</groupId>
    <artifactId>java-9-spring-mvc</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
        <module>app</module>
        <module>users</module>
        <module>admin</module>
    </modules>

    <properties>
        <java.version>10</java.version>
        <spring-boot.version>1.5.13.RELEASE</spring-boot.version>
        <spring.version>4.3.17.RELEASE</spring.version>
        <start-class>java9.spring.mvc.Java9SpringMvcExample</start-class>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.chris</groupId>
                <artifactId>app</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>com.chris</groupId>
                <artifactId>users</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>com.chris</groupId>
                <artifactId>admin</artifactId>
                <version>${project.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring-boot.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                        <configuration>
                            <classifier>exec</classifier>
                            <mainClass>${start-class}</mainClass>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <showDeprecation>true</showDeprecation>
                    <showWarnings>true</showWarnings>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>