Modular Spring app can't find persistence provider | Java Community | Help. Code. Learn. | Page 1

drifting pagoda Dec 16, 2024, 11:05 AM

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Hi, I'm trying to run my JPMS app through the command line instead of IntelliJ. I set up maven to copy all dependencies to a specified folder, so that they can be added to the module path.
I use the following command to start the app:

java --module-path "infodb-app-1.0-SNAPSHOT.jar;modules" --add-reads ovh.eukon05.infodb.app=ALL-UNNAMED -m ovh.eukon05.infodb.app/ovh.eukon05.infodb.app.Main -Dinfodb.sources.articlelimit=5 -Dinfodb.hibernate.db.user=sa -Dinfodb.hibernate.db.pass= -Dinfodb.hibernate.db.url="jdbc:h2:mem:db1;DB_CLOSE_DELAY=-1"

The app starts, but crashes saying that it couldn't instantiate a class responsible for database connectivity due to the lack of a persistence provider. I can't figure out why it is that way, because Hibernate is shown to be loaded to the module path when I use --show-module-resolution and persistence.xml is present in the META-INF folder of the module responsible for DB connectivity.

Link to the repo: https://github.com/Eukon05/infodb

fervent crystalBOT Dec 16, 2024, 11:05 AM

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fervent crystalBOT Dec 16, 2024, 4:10 PM

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old sphinx Dec 16, 2024, 7:52 PM

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Hey @drifting pagoda,

Could you post stacktrace for better understanding the issue?

Thanks.

drifting pagoda Dec 16, 2024, 8:15 PM

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sure, give me a sec

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📎 message.txt

old sphinx Dec 16, 2024, 8:29 PM

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@drifting pagoda I checked the repo you've shared and can say:

You have incorrect version in persistence.xml . I checked pom.xml and you are using Hibernate 6 version. It means you need to put 3.1 instead of 2
Also in pom.xml i see you are using H2 db, but dependency is in test scope. put it to runtime as you dont have any other driver in your configuration

At least these 2 items should be fixed

drifting pagoda Dec 16, 2024, 8:32 PM

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Thank you! I'll try it out and let you know if it helped

fervent crystalBOT Dec 16, 2024, 8:32 PM

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drifting pagoda Thank you! I'll try it out and let you know if it helped

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drifting pagoda Dec 16, 2024, 9:34 PM

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Unfortunatelty, it didn't work
The stack trace seems the same, but this is what i get:

📎 message.txt

fervent crystalBOT Dec 17, 2024, 2:40 AM

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#Modular Spring app can't find persistence provider