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>org.apache</groupId>
    <artifactId>antlr4-learn</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>antlr4-learn</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <pluginRepositories>
        <pluginRepository>
            <id>jitpack.io</id>
            <url>https://jitpack.io</url>
        </pluginRepository>
    </pluginRepositories>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.13.0</version>
                <configuration>
                    <source>22</source>
                    <target>22</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
            <!-- Error: Cannot invoke "javax.script.ScriptEngine.eval(String)" because "nl.bigo.rrdantlr4.DiagramGenerator.ENGINE" is null -->
<!--            <plugin>-->
<!--                <groupId>com.github.protowouter</groupId>-->
<!--                <artifactId>antlr4-rrd-maven-plugin</artifactId>-->
<!--                <version>1.2</version>-->
<!--                <executions>-->
<!--                    <execution>-->
<!--                        <id>antlr</id>-->
<!--                        <goals>-->
<!--                            <goal>railroad</goal>-->
<!--                        </goals>-->
<!--                    </execution>-->
<!--                </executions>-->
<!--            </plugin>-->

            <!-- Plugin to compile the g4 files ahead of the java files
                 See https://github.com/antlr/antlr4/blob/master/antlr4-maven-plugin/src/site/apt/examples/simple.apt.vm
                 Except that the grammar does not need to contain the package declaration as stated in the documentation (I do not know why)
                 To use this plugin, type:
                            mvn antlr4:antlr4
                 In any case, Maven will invoke this plugin before the Java source is compiled
            -->
            <plugin>
                <groupId>org.antlr</groupId>
                <artifactId>antlr4-maven-plugin</artifactId>
                <version>4.13.2</version>
                <executions>
                    <execution>
                        <id>antlr</id>
                        <goals>
                            <goal>antlr4</goal>
                        </goals>
                        <phase>generate-sources</phase>
                    </execution>
                </executions>
                <configuration>
                    <sourceDirectory>${basedir}/src/main/antlr4/</sourceDirectory>
                    <outputDirectory>${basedir}/src/main/java/org/apache/antlr4/</outputDirectory>
                    <listener>true</listener>
                    <visitor>true</visitor>
                    <treatWarningsAsErrors>true</treatWarningsAsErrors>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.antlr</groupId>
            <artifactId>antlr4-runtime</artifactId>
            <version>4.13.2</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
</project>