How to fix "lombok.javac.apt.LombokProcessor could not be initialized"

Question

My question relates to "https://mcmap.net/q/334765/-gradle-build-fails-on-lombok-annotated-classes". I am using JHipster and Lombok 1.16.18 with build.gradle:

...
apply plugin: 'net.ltgt.apt'
...
dependencies {
    provided "org.projectlombok:lombok:${lombok_version}"
    apt "org.projectlombok:lombok:${lombok_version}"
}
...

but get the following error during compileJava:

warning: lombok.javac.apt.LombokProcessor could not be initialized. 
Lombok will not run during this compilation: 
java.lang.IllegalArgumentException: com.sun.tools.javac.api.ClientCodeWrapper$WrappedStandardJavaFileManager extends com.sun.tools.javac.api.ClientCodeWrapper$WrappedJavaFileManager implements javax.tools.StandardJavaFileManager

The output is:

------------------------------------------------------------ Gradle 4.2.1 ------------------------------------------------------------ 
Build time: 2017-10-02 15:36:21 UTC 
Revision: a88ebd6be7840c2e59ae4782eb0f27fbe3405ddf 
Groovy: 2.4.12 
Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015 JVM: 9.0.1 (Oracle Corporation 9.0.1+11) 
OS: Mac OS X 10.13.1 x86_64

What am I missing here?

Carib

Please edit your question and paste output of gradlew -v – Ardel

------------------------------------------------------------ Gradle 4.2.1 ------------------------------------------------------------ Build time: 2017-10-02 15:36:21 UTC Revision: a88ebd6be7840c2e59ae4782eb0f27fbe3405ddf Groovy: 2.4.12 Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015 JVM: 9.0.1 (Oracle Corporation 9.0.1+11) OS: Mac OS X 10.13.1 x86_64 – Carib

https://mcmap.net/q/330619/-lombok-in-project-generated-by-spring-initializr-lombokprocessor-could-not-be-initialized – Mesarch

Answer 1

Output of gradlew -v shows that you are using JDK 9 which is not supported by JHipster 4.10.2, please use JDK 8. Same for Lombok.

------------------------------------------------------------ Gradle 4.2.1 -------
Build time: 2017-10-02 15:36:21 UTC 
Revision: a88ebd6be7840c2e59ae4782eb0f27fbe3405ddf 
Groovy: 2.4.12 
Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015 
JVM: 9.0.1 (Oracle Corporation 9.0.1+11) 
OS: Mac OS X 10.13.1 x86_64

Centri

Answer 2

I was facing the similar warning in my project as we moved from JDK 8 to JDK 9.

Upgrading the lombok version helped me with removing the error.

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.20</version>
            <scope>provided</scope>
        </dependency>

I found the reference over here https://github.com/rzwitserloot/lombok/issues/1541

Anticlinal

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Answer 3

if you are using gradle this has worked for me

dependencies {    annotationProcessor group: 'org.projectlombok', name: 'lombok', version: '1.18.16'}

Punk

Please read "How to Answer" and "Explaining entirely code-based answers". It helps more if you supply an explanation why this is the preferred solution and explain how it works. We want to educate, not just provide code. – Reider

Answer 4

I had a similar problem, it turned out I was messing with my project setting and inadvertently set project JVM to 11, instead of the "correct" one, which was 8.

I reset it back to 8 and it's working again.

Sayette

Answer 5

Make sure you have inserted the Lombok plugin inside the properties of maven.

<properties>
    <java.version>11</java.version>
    <lombok.version>1.18.8</lombok.version>
</properties>

The above arrangement worked for me instead of adding the dependency as independent dependency.

Bertina