<?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> <parent> <groupId>nu.zoom.dsl</groupId> <artifactId>endgen</artifactId> <version>1.0-SNAPSHOT</version> </parent> <artifactId>parser</artifactId> <dependencies> <dependency> <groupId>org.antlr</groupId> <artifactId>antlr4-runtime</artifactId> <version>4.13.0</version> </dependency> <dependency> <groupId>info.picocli</groupId> <artifactId>picocli</artifactId> <version>4.7.6</version> </dependency> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.34</version> </dependency> </dependencies> <build> <plugins> <!-- This plugin sets up maven to use Java 7 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.13.0</version> <configuration> <source>24</source> <target>24</target> </configuration> </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>4.13.1</version> <configuration> <visitor>true</visitor> </configuration> <executions> <execution> <goals> <goal>antlr4</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>