JHipster Cassandra - jakarta.persistence.spi::No valid providers found.

[micobarac]

Overview of the issue

Running JHipster Cassandra application for production, I get the following WARN message:

2023-09-19T06:19:27.899Z WARN 1 --- [ XNIO-1 task-2] jakarta.persistence.spi: jakarta.persistence.spi::No valid providers found.

Motivation for or Use Case

Remove the WARN message

Reproduce the error

Generate a new JHipster Cassandra project, pack for production and run the application on server.

This is the dependency that is causing the issue:

<dependency>
    <groupId>jakarta.persistence</groupId>
    <artifactId>jakarta.persistence-api</artifactId>
</dependency>

As I am using the jakarta.persistence.* classes in a project, removing the dependency is not an option.

import jakarta.persistence.EnumType;
import jakarta.persistence.Enumerated;

...

@NotNull
@CqlName("type")
@Enumerated(EnumType.ORDINAL)
private AccessType type;

Related issues

This WARN message happens with the previous JHipster versions too.

Suggest a Fix

The official docs suggest that the dependency above is only the API and requires a JPA implementation (Eclipse Link, OpenJPA, Hibernate, ...) to actually work in an container.

JHipster Version(s)

8.0.0-beta.3

JHipster configuration

##### **JHipster configuration, a `.yo-rc.json` file generated in the root folder**

<details>
<summary>.yo-rc.json file</summary>
<pre>
{
  "generator-jhipster": {
    "applicationType": "monolith",
    "authenticationType": "jwt",
    "baseName": "openprovider-admin",
    "buildTool": "maven",
    "cacheProvider": "ehcache",
    "clientFramework": "no",
    "creationTimestamp": 1690783074116,
    "databaseType": "cassandra",
    "devDatabaseType": "cassandra",
    "dtoSuffix": "DTO",
    "enableGradleEnterprise": null,
    "enableHibernateCache": false,
    "enableSwaggerCodegen": false,
    "enableTranslation": true,
    "entities": [],
    "entitySuffix": "",
    "gradleEnterpriseHost": null,
    "jhiPrefix": "jhi",
    "jhipsterVersion": "8.0.0-beta.3",
    "languages": [
      "en",
      "fr",
      "hr",
      "sr"
    ],
    "messageBroker": false,
    "microfrontend": false,
    "microfrontends": [],
    "nativeLanguage": "en",
    "packageFolder": "com/logate/openprovider",
    "packageName": "com.logate.openprovider",
    "pages": [],
    "prodDatabaseType": "cassandra",
    "reactive": false,
    "searchEngine": false,
    "serverPort": null,
    "serverSideOptions": [],
    "serviceDiscoveryType": false,
    "skipCheckLengthOfIdentifier": false,
    "skipClient": true,
    "skipFakeData": false,
    "skipUserManagement": false,
    "testFrameworks": [],
    "websocket": false,
    "withAdminUi": true
  }
}
</pre>
</details>

##### **Environment and Tools**

java version "20.0.2" 2023-07-18
Java(TM) SE Runtime Environment (build 20.0.2+9-78)
Java HotSpot(TM) 64-Bit Server VM (build 20.0.2+9-78, mixed mode, sharing)

git version 2.41.0

node: v18.17.0
npm: 8.12.1

Docker version 24.0.5, build ced0996

##### **JDL for the Entity configuration(s) `entityName.json` files generated in the `.jhipster` directory**

<details>
<summary>JDL entity definitions</summary>

<pre>

</pre>
</details>


Congratulations, JHipster execution is complete!
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Thanks for using JHipster!

Entity configuration(s) entityName.json files generated in the .jhipster directory

Browsers and Operating System

Google Chrome 117.0.5938.88 (Official Build) (arm64)
MacOS Ventura 13.5.2

[mshima]

We don’t generate:

@Enumerated(EnumType.ORDINAL)
private AccessType type;

This is not a jhipster issue.

[micobarac]

There's no need to be rude, ok? As jakarta replaced javax a while ago, I use Cassandra enum column mapping, as I showed in example above. jakarta.persistence.api dependency causes the WARN, I encountered. I was just asking for a potential explanation or a workaround, that's all.

[mshima]

I didn't mean to be rude, it's just a fact. This is not a JHipster issue.

Please read the issue description (it's rude otherwise):

- Please follow the issue template below for bug reports.
- If you have a support request rather than a bug, please use [Stack Overflow](http://stackoverflow.com/questions/tagged/jhipster) with the JHipster tag.

If you have read and still wants to create an issue, please explain that this is not a bug, but a help request.

Closing as this doesn't follows the bug report guidelines.