Lombok: Spring boot does not work with Lombok - Compilation error -Werror
Maven project with -Werror compiler option
COMPILATION WARNING :
No processor claimed any of these annotations: org.springframework.context.annotation, lombok.Data
COMPILATION ERROR :
warnings found and -Werror specified
Maven compiler plugin:
`<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<showDeprecation>true</showDeprecation>
<showWarnings>true</showWarnings>
<compilerArgs>
<arg>-Werror</arg>
<arg>-Xlint:all</arg>
</compilerArgs>
</configuration>
</plugin> `
Same issue was reported before at following link Issue1117 tried solutions provided in there but does not work.
nchavan
All 11 comments
When I remove lombok dependency it compiles fine. So is the issue with spring or lombok or somewhere else.
nchavan
on 20 Mar 2017
may be its related to #1194
mtbadi39
on 20 Mar 2017
My project uses SpringBoot, and it works perfect with Lombok so far...
<plugins>
<plugin>
<groupId>com.mysema.maven</groupId>
<artifactId>apt-maven-plugin</artifactId>
<version>${apt-maven-plugin.version}</version>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
<configuration>
<outputDirectory>target/generated-sources/java</outputDirectory>
<processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
beamofsoul
on 23 Mar 2017
@beamofsoul : Thanks for your reply. I did create a new mvn java project without any Spring dependencies in it. I am getting compilation error for @FunctionalInterface annotation. So this proves that there is nothing to do with Spring here. Looks like Lombok issue.
nchavan
on 23 Mar 2017
Sounds more like a java version or classpath issue
schauder
on 27 Apr 2017
I ran into this problem with:
lombok 1.16.18
maven-compiler-plugin argument: -Werror
java: tried both 1.8.0_91 and 1.8.0_141
Including lombok as a provided dependency, without even without referencing lombok in java source, causes compile to fail if java source contains @FunctionalInterface:
Caused by: org.apache.maven.plugin.compiler.CompilationFailureException: Compilation failure
An unknown compilation problem occurred
I didn't see a warning in the output, just the compilation error. Removing -Werror or removing lombok resolves the problem.
nguyenquoc
on 22 Jul 2017
I seem to be experiencing the same problem as @nguyenquoc which sounds like it may not be the same as what is reported in the issue, so perhaps it is a different issues.
It fails only during the test-compile phase of my project which seems likely because I am guessing I have a JUnit5 test with a @FunctionalInterface. Will investigate further. I'm actually running JDK9 and everything else works fine. Removing -Werror allows maven to compile my project.
java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
Is it helpful to open a separate issue for this? I am not using Spring in this project.
jhovell
on 18 Oct 2017
Hmm, I cannot reproduce the problem.
Input files
src/main/java/HelloWorld.java
@lombok.Data
public class HelloWorld {
int foo;
public static void main(String... args) {
System.out.println(new HelloWorld().getFoo());
}
@FunctionalInterface
interface Foo {
String name();
}
}
lombok.config
lombok.addJavaxGeneratedAnnotation = false
pom.xml
<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>com.example</groupId>
<artifactId>lombok-jdk9</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.9</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<showDeprecation>true</showDeprecation>
<showWarnings>true</showWarnings>
<fork>true</fork>
<compilerargs>
<arg>-Werror</arg>
<arg>-Xlint:all</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED</arg>
<arg>-J--add-opens=-Jjdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED</arg>
</compilerargs>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.18</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
Outputs
mvn compile (after mvn clean)
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building lombok-jdk9 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ lombok-jdk9 ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /shared/maven/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ lombok-jdk9 ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /shared/maven/target/classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.745 s
[INFO] Finished at: 2017-10-19T22:19:08Z
[INFO] Final Memory: 9M/23M
[INFO] ------------------------------------------------------------------------
java -cp target/classes HelloWorld
0
java -version
java version "9.0.1"
Java(TM) SE Runtime Environment (build 9.0.1+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)
mvn --version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T19:39:06Z)
...
rspilker
on 20 Oct 2017
I got this using Gradle.
Unknown key 'lombok.addLombokGeneratedAnnotation'
robertop87
on 24 Apr 2018
I was able to solve similar issues in my gradle spring-boot multi-project like so:
dependencies {
annotationProcessor("org.projectlombok:lombok")
compileOnly("org.projectlombok:lombok")
}
Regards,
Maksim
daggerok
on 3 May 2018
I found the same problem with lombok vs Junit5:
https://github.com/junit-team/junit5-samples/compare/master...alxn:alun/lombok
$ mvn --show-version clean test-compile
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T12:39:06-07:00)
Maven home: /Users/alun/.m2/wrapper/dists/apache-maven-3.5.0-bin/6ps54u5pnnbbpr6ds9rppcc7iv/apache-maven-3.5.0
Java version: 1.8.0_172, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_172.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.13.6", arch: "x86_64", family: "mac"
<snip>
[WARNING] No processor claimed any of these annotations: org.junit.jupiter.api.Test,org.junit.jupiter.params.provider.CsvSource,org.junit.jupiter.params.ParameterizedTest,org.junit.jupiter.api.DisplayName
alxn
on 15 Aug 2018
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Most helpful comment
I was able to solve similar issues in my gradle spring-boot multi-project like so:
Regards,
Maksim