Caused by: java.lang.ClassNotFoundException: com.querydsl.apt.jpa.JPAAnnotationProcessor

Question

i am using gradle6+, openjdk11 and querydsl 4.2.x for a springboot project, facing an issue like below

in gradle script, have added

annotationProcessor 'com.querydsl:querydsl-apt:4.2.1:jpa'
    annotationProcessor "javax.annotation:javax.annotation-api:1.3.1"
    annotationProcessor 'org.springframework.boot:spring-boot-starter-data-jpa'
    compile("com.querydsl:querydsl-core:${project.querydsl}")
    compile("com.querydsl:querydsl-jpa:${project.querydsl}")

Can someone kindly let me help solving the issue?

share the snippet of your repository class and build.gradle file — bhanu
– bhanu, Commented Mar 4, 2021 at 8:39
@bhanu, i couldn't able to add complete file details here. Would u like to share me which part of build file u need.? — Vijay
– Vijay, Commented Mar 4, 2021 at 9:38

Vijay · Accepted Answer · 2021-03-08 05:39:56Z

1

I solved and able to compile the QClasses without this JPAProcessor in gradle build file. Looks to be with latest versions, we dont need this JPAProcessor while QClasses getting compiled. Just by placing the annotation processor as dependency is fine. The Java compile is able to create QClasses. I just used

annotationProcessor("com.querydsl:querydsl-apt:4.2.1:jpa")
annotationProcessor group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: project.springBoot
    annotationProcessor group: 'javax.annotation', name: 'javax.annotation-api', version: '1.3.2'
    annotationProcessor group: 'org.hibernate.javax.persistence', name: 'hibernate-jpa-2.1-api', version: '1.0.2.Final'

answered Mar 8, 2021 at 5:39

Vijay

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rios0rios0 · Accepted Answer · 2021-11-03 18:56:34Z

1

Here, I only needed of three lines (once that I already had spring-boot-starter-data-jpa on the project):

implementation 'org.springframework.boot:spring-boot-starter-data-jpa:2.5.6'
annotationProcessor 'org.springframework.boot:spring-boot-starter-data-jpa:2.5.6'
implementation 'com.querydsl:querydsl-jpa:5.0.0'
annotationProcessor 'com.querydsl:querydsl-apt:5.0.0:jpa'

answered Nov 3, 2021 at 18:56

rios0rios0

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