Lombok: Add `annotationProcessorPaths` configuration to the `maven-compiler-plugin` plugin

[yeikel]

What problem are you trying to solve?

Ensure that the project is fully compatible with Java 25

What precondition(s) should be checked before applying this recipe?

• lombok is in the classpath
• The maven-compiler-plugin does not have lombok defined in the annotationProcessorPaths

Although this problem starts in Java 23+, it is still a good practice to define it explicitly

Describe the situation before applying the recipe

<dependencies>
	<dependency>
		<groupId>org.projectlombok</groupId>
		<artifactId>lombok</artifactId>
		<version>1.18.42</version>
		<scope>provided</scope>
	</dependency>
</dependencies>

<build>
	<plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
		</plugin>
	</plugins>
</build>

Describe the situation after applying the recipe

<dependencies>
	<dependency>
		<groupId>org.projectlombok</groupId>
		<artifactId>lombok</artifactId>
		<version>1.18.42</version>
		<scope>provided</scope>
	</dependency>
</dependencies>

<build>
	<plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
			<configuration>
				<annotationProcessorPaths>
					<path>
						<groupId>org.projectlombok</groupId>
						<artifactId>lombok</artifactId>
					</path>
				</annotationProcessorPaths>
			</configuration>
		</plugin>
	</plugins>
</build>

Any additional context

The official documentation lombok suggests this configuration https://projectlombok.org/setup/maven

[rojyates]

With Java 21+ this might also need:
<proc>full</proc>

[yeikel]

With Java 21+ this might also need:
<proc>full</proc>

Can you share a full example example? I never had to add that even in Java 25

[rojyates]

From https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html

`

Sets whether annotation processing is performed or not. Only applies to JDK 1.6+ If not set, both compilation and annotation processing are performed at the same time.

Allowed values are:

none - no annotation processing is performed.
only - only annotation processing is done, no compilation.
full - annotation processing and compilation.
full is the default. Starting with JDK 21, this option must be set explicitly.
See also: javac -proc, javac Annotation Processing
User Property: maven.compiler.proc`