ECJ
ECJ (the Eclipse standalone compiler) is compatible with Lombok. Use the following command line to enable Lombok with ECJ:
java -javaagent:lombok.jar=ECJ -jar ecj.jar -cp lombok.jar -source 1.8 (rest of arguments)
You may have to add the following VM argument, if you're using an older version of Lombok or Java:
-Xbootclasspath/p:lombok.jar
If you're using a tool based on ECJ, adding these VM arguments and adding lombok.jar
to the classpath should work.
Maven
Lombok comes with a tiny bootstrap agent that can be included in your project to allow ECJ to easily work with Maven. To create this agent, run:
java -jar lombok.jar createMavenECJBootstrap -o /path/to/project/root
The -o path should contain your pom.xml
.
This will create two files, .mvn/jvm.config
and .mvn/lombok-bootstrap.jar
. Maven will use these files
to activate the standard Lombok Java agent at the right time. These can be committed in source control for a portable build.
You must also update your pom.xml
to add Lombok as a dependency to the maven-compiler-plugin
. A minimal example follows:
<?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>org.projectlombok</groupId> <artifactId>eclipse-compiler-test</artifactId> <version>1.0-SNAPSHOT</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <lombok.version>1.18.34</lombok.version> </properties> <dependencies> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> <scope>provided</scope> </dependency> </dependencies> <build> <pluginManagement> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.10.1</version> <configuration> <compilerId>eclipse</compilerId> </configuration> <dependencies> <dependency> <groupId>org.codehaus.plexus</groupId> <artifactId>plexus-compiler-eclipse</artifactId> <version>2.11.1</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> </dependency> </dependencies> </plugin> </plugins> </pluginManagement> </build> </project>