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.almasb</groupId>
    <artifactId>SpaceInvaders</artifactId>
    <version>1.0.1</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <source.version>11</source.version>

        <!-- plugins -->
        <maven.compiler.version>3.8.1</maven.compiler.version>
        <maven.shade.version>3.0.0</maven.shade.version>

        <fxgl.version>dev-SNAPSHOT</fxgl.version>
    </properties>

    <repositories>
        <repository>
            <id>oss.sonatype.org-snapshot</id>
            <url>http://oss.sonatype.org/content/repositories/snapshots</url>
        </repository>
    </repositories>

    <dependencies>
        <dependency>
            <groupId>com.github.almasb</groupId>
            <artifactId>fxgl</artifactId>
            <version>${fxgl.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.version}</version>
                <configuration>
                    <release>${source.version}</release>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>${maven.shade.version}</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.almasb.fxglgames.spaceinvaders.SpaceInvadersApp</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>