Configurações necessárias para o pom.xml

Adicione o Profile

<profiles>
    <profile>
        <id>lombok-tool</id>
        <properties>
            <src.dir>${project.build.directory}/generated-sources/cplombok</src.dir>
        </properties>
    </profile>
</profiles>

Adicione a dependência do Lombok

<dependencies>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <scope>provided</scope>
    </dependency>
</dependencies>

Adicione o Plugin

<build>
    <plugins>
        <plugin>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok-maven-plugin</artifactId>
            <executions>
                <execution>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>cplombok</goal>
                    </goals>
                    <configuration>
                        <sourceDirectory>src/main/java</sourceDirectory>
                        <addOutputDirectory>false</addOutputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

Configurando a IDE

Acesso as propriedades do projeto e configure:

• Properties
• Actions > Selecione Profile Project
• Activate Profiles > Selecione lombok-tool
• Clique em OK