Generated launch code does not work (with hibernate)

[mwiesiolek]

Expected Behavior

native run works, application starts

I've noticed that adding two entries to hibernate.properties file in resources folder:
hibernate.bytecode.provider=none hibernate.bytecode.use_reflection_optimizer=false

fix the problem

Actual Behaviour

I got error as shown down below:

Error starting Micronaut server: Bean definition [org.hibernate.SessionFactory] could not be loaded: Error instantiating bean of type [org.hibernate.SessionFactory] Message: No classes have been predefined during the image build to load from bytecodes at runtime. Path Taken: SessionFactoryPerDataSourceFactory.buildHibernateSessionFactoryBuilder(SessionFactoryBuilder sessionFactoryBuilder) --> SessionFactoryPerDataSourceFactory.buildHibernateSessionFactoryBuilder([SessionFactoryBuilder sessionFactoryBuilder])

Steps To Reproduce

1. Download launch code: https://micronaut.io/launch?type=DEFAULT&name=demo&package=com.example&javaVersion=JDK_17&lang=JAVA&build=GRADLE&test=JUNIT&features=postgres&features=data-jpa&features=flyway&features=hibernate-jpa&version=4.0.4
2. Execute ./gradlew nativeRun

Environment Information

MacBook Pro / macOS Ventura 13.5

java --version
openjdk 17.0.5 2022-10-18 OpenJDK Runtime Environment GraalVM CE 22.3.0 (build 17.0.5+8-jvmci-22.3-b08) OpenJDK 64-Bit Server VM GraalVM CE 22.3.0 (build 17.0.5+8-jvmci-22.3-b08, mixed mode, sharing)

Example Application

https://micronaut.io/launch?type=DEFAULT&name=demo&package=com.example&javaVersion=JDK_17&lang=JAVA&build=GRADLE&test=JUNIT&features=postgres&features=data-jpa&features=flyway&features=hibernate-jpa&version=4.0.4

Version

4.0.4

[radovanradic]

@mwiesiolek Please try adding this to the properties file
jpa.default.compile-time-hibernate-proxies=true and also annotate entities with @GenerateProxy
It is documented here https://micronaut-projects.github.io/micronaut-sql/latest/guide/#hibernate-proxies

[mwiesiolek]

Hey @radovanradic ,

thanks for that, it helped. I would though, still expect freshly auto-generated code from https://micronaut.io/launch to at least compile if none changes have been applied.

[radovanradic]

It compiles, just for native compile needs that one change that is documented. Launcher that creates code doesn't know it will need native so I guess it's reasonable that is not configured by default.