According to the mapstruct docs, one should add the maven-compiler-plugin
to the poml.xml
s.t. the Mappers are generated. After fiddling with the correct source, target version for my JDK, I ran into this error, when building the project:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile
(default-compile) on project: Unable to parse configuration of mojo
org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile
for parameter source: Cannot find default setter in class
org.apache.maven.plugin.compiler.DependencyCoordinate -> [Help 1]
A snippet from my poml.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.5</version>
</parent>
<groupId>com.example</groupId>
<artifactId>myproject</artifactId>
<version>0.0.1</version>
<name>myproject</name>
<description>Example project</description>
<properties>
<org.mapstruct.version>1.5.5.Final</org.mapstruct.version>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<annotationProcessorPaths>
<source>${java.version}</source>
<target>${java.version}</target>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
One can add only the package mapstruct-processor
instead of editing the maven-compiler-plugin
configuration, which (according to my understanding) is already provided & set by maven itself.
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>1.5.5.Final</version>
</dependency>