CODEWITHSUNDEEP
spring-bootlombokmapstruct
Diego Nieto
Diego Nieto

Reputation: 721

SpringBoot + Lombok + MapStruct not working together

I'm trying to configure SpringBoot (v2.6.2) with Lombok and MapStruct, already configured the maven compiler plugin and the lombok-mapstruct-binding (annotationProcessorPaths) but the lombok classes aren't being created:

pom.xml

*<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>io.knowledge</groupId>
    <artifactId>knowledge</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>knowledge</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>11</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.target>11</maven.compiler.target>
        <maven.compiler.source>11</maven.compiler.source>
        <version.mapstruct>1.4.1.Final</version.mapstruct>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.mapstruct</groupId>
            <artifactId>mapstruct</artifactId>
            <version>${version.mapstruct}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>${lombok.version}</version>
                        </path>
                        <path>
                            <groupId>org.mapstruct</groupId>
                            <artifactId>mapstruct-processor</artifactId>
                            <version>${version.mapstruct}</version>
                        </path>

                        <dependency>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok-mapstruct-binding</artifactId>
                            <version>0.2.0</version>
                        </dependency>
                    </annotationProcessorPaths>
                    <compilerArgs>
                        <compilerArg>
                            -Amapstruct.defaultComponentModel=spring
                        </compilerArg>
                    </compilerArgs>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>*

Always getting an uninitialised variable error when trying to use DI:

variable xxxx might not have been initialized

Upvotes: 7

Views: 13050

Answers (3)

Yen Dau
Yen Dau

Reputation: 1

Just for contributted. I use spring boot 3.2.3, lombok 1.18.30, mapstruct 1.5.5.Final, maven 3.8.1, OpenJDK 17.

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.1</version>
            <configuration>
                <source>17</source> <!-- or your Java version -->
                <target>17</target> <!-- or your Java version -->
                <annotationProcessorPaths>
                    <path>
                        <groupId>org.mapstruct</groupId>
                        <artifactId>mapstruct-processor</artifactId>
                        <version>1.5.5.Final</version>
                    </path>
                    <path>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok-mapstruct-binding</artifactId>
                        <version>${mapstruct-lombok.version}</version>
                    </path>
                    <path>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok</artifactId>
                        <version>1.18.30</version>
                    </path>
                    <path>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-configuration-processor</artifactId>
                        <version>${spring-boot.version}</version>
                    </path>
                </annotationProcessorPaths>
            </configuration>
        </plugin>

Upvotes: 0

Guru Cse
Guru Cse

Reputation: 3275

i have working mapstruct + lombok with following versions

  1. java 17
  2. mapstruct 1.3.1.Final
  3. spring boot 2.7.6
  4. lombok 1.18.26
  5. lombok-mapstruct-binding 0.2.0
  6. maven-compiler-plugin 3.8.1

Map struct > 1.4 versions dosent work with latest lombok versions. So in updated versions i have to downgrade mapstruct to make it work

           <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.mapstruct</groupId>
                            <artifactId>mapstruct-processor</artifactId>
                            <version>1.3.1.Final</version>
                        </path>

                        <!-- This is needed when using Lombok 1.18.16 and above -->
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok-mapstruct-binding</artifactId>
                            <version>0.2.0</version>
                        </path>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>1.18.26</version>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>

Upvotes: 1

Joand
Joand

Reputation: 342

yes, you can also take a look at the accepted answer here How to instruct Mapstruct to use lombok builder? it's also the official mapstruct documentation https://mapstruct.org/documentation/stable/reference/html/#_set_up

<build>
<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.1</version>
        <configuration>
            <source>1.8</source>
            <target>1.8</target>
            <annotationProcessorPaths>
                <path>
                    <groupId>org.mapstruct</groupId>
                    <artifactId>mapstruct-processor</artifactId>
                    <version>${org.mapstruct.version}</version>
                </path>
                <path>
                    <groupId>org.projectlombok</groupId>
                    <artifactId>lombok</artifactId>
                    <version>${org.projectlombok.version}</version>
                </path>

                <!-- additional annotation processor required as of Lombok 1.18.16 -->
                <path>
                    <groupId>org.projectlombok</groupId>
                    <artifactId>lombok-mapstruct-binding</artifactId>
                    <version>0.1.0</version>
                </path>
            </annotationProcessorPaths>
        </configuration>
    </plugin>
</plugins>

Upvotes: 3

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