Add support for Jakarta annotations + Jakarta persistence (in jakarta.* packages)

[ePaul]

Currently, when building a project with QueryDSL-APT 4.3.1 and jakarta.annotation-api 2.0.0-RC1, no Q-classes are generated (with an error message like "java.lang.NoClassDefFoundError: javax/annotation/Generated"). It still works with jakarta.annotation-api 1.3.5.

With Jakarta EE, many types in the javax.* package are moved to the jakarta.* packages.
This includes the Annotation types in javax.annotations, and it looks like javax.annotation.Generated is now jakarta.annotation.Generated.

The same happens when using jakarta.persistence-api 3.0.0-RC2 (instead of 2.2.3), here the problem is javax.persistence.Entity → jakarta.persistence.Entity.

[jwgmeligmeyling]

Seems that a solution for #2657 would actually solve the issue w.r.t. @Generated.

I'm not really interested in supporting the jakarta.persistence.Entity annotations before any of the ORMs have actually implemented it. But eventually it would require a separate APT module.

[gitmotte]

EclipseLink 3.0 is out since Dec 8th, 2020 which implements jakarta-persistence-api 3.0

[gitmotte]

I'm not really interested in supporting the jakarta.persistence.Entity annotations before any of the ORMs have actually implemented it. But eventually it would require a separate APT module.

@jwgmeligmeyling Please reopen this feature request. There will be no way around supporting jakarta.persistence in the future.
EclipseLink 3.0 is out since Dec 8th, 2020 which implements jakarta-persistence-api 3.0

[jwgmeligmeyling]

Issue was automatically closed when I fixed the other issue the TS asked for: Java 9+ support.

I am working on full Jakarta EE API support in #2726

[hohwille]

Can someone shed a light how this can be solved if you are still using javax.persistence.EntityManager?

querydsl/querydsl-jpa/src/main/java/com/querydsl/jpa/impl/JPAQuery.java

Line 16 in cd608f0

import javax.persistence.EntityManager;

[hohwille]

OK, I found it myself hidden in a different issue:

   <dependency>
      <groupId>com.querydsl</groupId>
      <artifactId>querydsl-jpa</artifactId>
      <version>${querydsl.version}</version>
      <classifier>jakarta</classifier>
    </dependency>
    <dependency>
      <groupId>com.querydsl</groupId>
      <artifactId>querydsl-apt</artifactId>
      <scope>provided</scope>
      <version>${querydsl.version}</version>
      <classifier>jakarta</classifier>
    </dependency>

Would be nice, if you could update your documentation. See e.g. http://querydsl.com/static/querydsl/latest/reference/html/ch02.html#d0e147 - IMHO you should add the classifier in RED and explain below to remove it for javax.persisntence usage. It is 2023 and spring-boot and quarkus all have moved to jakarta EE so it is the default for new projects and should be found in the first place.