Maven Build Cannot Find Symbol When Accessing Project Lombok Annotated Methods,

Maven build cannot find symbol when accessing project lombok annotated methods,

I have downgraded the lombok to 1.14.8 this version works with maven build, I havent found why the 1.16 verson is not working :(

[ERROR]: cannot find symbol variable log when building with maven and lombok

This is a really minimal example configuration for using the @Slf4j lombok logging annotation.

You need a logging facade and an implementation, in this case I'm going to use slf4j (as facade) and logback (as implementation).

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pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>untitled</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
            <scope>provided</scope>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.30</version>
        </dependency>

        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>
    </dependencies>
</project>   

---

main.java

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class Main {

    public static void main(String[] args) {
        log.debug("Hello");
    }
}

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If you get some trouble try always to force the maven dependencies updates running in your project folder mvn -U clean package and reimporting maven project in your IDE

Application build failed cause of Lombok

This issue has been resolved in a newer version of Lombok. Please update the Lombok version to 1.18.18 and it will fix the issue.

Can't compile project when I'm using Lombok under IntelliJ IDEA

I have fixed it in IDEA 12 by setting check box Enable annotation processing in:

Settings -> Compiler -> Annotation Processors

For IDEA 2016.2:

Preferences... > Build, Execution, Deployment > Compiler > Annotation Processors

After enabling, run Build -> Rebuild Project to have annotations recognized and eliminate errors.

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For IDEA 2019.2.1, depending on how the project is configured, installing the Project Lombok plugin may not be sufficient. Here is another way to use Project Lombok with IntelliJ IDEA:

1. Visit https://projectlombok.org/download
2. Download the JAR file into the project lib directory (e.g., $HOME/dev/java/project/libs).
3. Start the IDE.
4. Click File Settings.
5. Expand Build, Execution, Deployment Compiler Annotation Processors.
6. Ensure Enable annotation processing is checked.
7. Ensure Store generates sources relative to is selected based on the project's module settings (if Module output directory doesn't work, come back and try the other setting).
8. Click Apply.
9. Click Plugins.
10. Click Marketplace.
11. Set search field to: lombok
12. Install Lombok.
13. Click OK.
14. Restart the IDE if prompted.
15. Click File Project Structure.
16. Select Libraries.
17. Click the + symbol to add a new project library (or press Alt+Insert).
18. Select Java.
19. Set the path to: $HOME/dev/java/project/libs/lombok.jar
20. Click OK.
21. Select the modules to apply.
22. Click OK.
23. Optionally, rename lombok to Project Lombok 1.18.8.
24. Click OK.

The project can now import from the lombok package and use Project Lombok annotations (e.g., lombok.Setter and lombok.Getter).

Lombok not compiling in maven

I don't know why but you got compiler error because of maven-compiler-plugin. If you can please change plugin version to 3.5 and check if it will work.

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