How to use Spoon and spoon-maven-plugin with Lombok?

[ElvisLiaooo]

Lombok is widely used in my projects. I read some issues and still cannot figured out how to use spoon-maven-plugin with Lombok.

Try1: use spoon-maven-plugin, without any extra configuration with Lombok.
Apparently, error occurs in Launcher.buildModel() phase if any invalid gramma in the source file such as:

• using @builder and define final fields

@Builder
@ToString
@Getter
public class SomeBuilderModel {
    private final int id;

    private final String name;
}

• using @AllArgsConstructor

@AllArgsConstructor
public enum SomeConstructorTest {
    A(1),
    B(2);
    private final int id;
}

Try2: using delombok with lombok-maven-plugin, configure sourceDirectory to src/main/java

<plugins>
            <plugin>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok-maven-plugin</artifactId>
                <version>1.18.20.0</version>
                <executions>
                    <execution>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>delombok</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok</artifactId>
                        <version>1.18.30</version>
                    </dependency>
                </dependencies>
            </plugin>
            <plugin>
                <groupId>fr.inria.gforge.spoon</groupId>
                <artifactId>spoon-maven-plugin</artifactId>
                <version>3.8.0</version>
                <executions>
                    <execution>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <processors>
                        <processor>
                            ProcessorA
                        </processor>
                        <processor>
                            ProcessorB
                        </processor>
                    </processors>
                </configuration>
            </plugin>

but it also failes because spoon maven plugins regard original sources and delombok generated source both as input source, which produces duplicated class, error:
The type XXXX is already defined

So is there any ways to configure spoon-maven-plugin to run with Lombok?

[MartinWitt]

Could you provide an minimal example project for the delombok approach? Spoon itself has no lombok support, so the first approach will never work.

[ElvisLiaooo]

Could you provide an minimal example project for the delombok approach? Spoon itself has no lombok support, so the first approach will never work.

Yes, I figured it out that the first approach would not work definitely, so for the first approach, my question is, is it possible to provide an option to skip errors in buildModel() method? In code transformation scenario, we don't always need the complete AST model to generate code.

Also I've already solve this problem by modify the maven-plugin myself to integrate delombok inside, but most of the configurable options are hardcoded to simply the work. I think the official spoon-maven-plugin should also provide a complete version of delombok integration since Lombok is widely use in industry now.

[monperrus]

@ElvisLiaooo That should work if you add <noClasspath>true</noClasspath> to the <configuration> block of the plugin.