Support for dynamically generated entity classes in Hibernate ORM extension #49017
Description
Describe the bug
See the reproducer - https://github.com/Naros/quarkus-mrp-build-time-entity
When running mvn install
[ERROR] Failed to execute goal io.quarkus:quarkus-maven-plugin:3.23.4:build (default) on project quarkus-mrp-build-time-entity-integration-tests: Failed to build quarkus application: io.quarkus.builder.BuildException: Build failure: Build failed due to errors
[ERROR] [error]: Build step io.quarkus.hibernate.orm.deployment.HibernateOrmProcessor#jpaEntitiesIndexer threw an exception: java.lang.IllegalStateException: Failed to index: io.github.naros.OutboxEvent
[ERROR] at io.quarkus.deployment.index.IndexingUtil.indexClass(IndexingUtil.java:170)
[ERROR] at io.quarkus.deployment.index.IndexingUtil.indexClass(IndexingUtil.java:148)
[ERROR] at io.quarkus.hibernate.orm.deployment.HibernateOrmProcessor.jpaEntitiesIndexer(HibernateOrmProcessor.java:380)
[ERROR] at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:733)
[ERROR] at io.quarkus.deployment.ExtensionLoader$3.execute(ExtensionLoader.java:856)
[ERROR] at io.quarkus.builder.BuildContext.run(BuildContext.java:255)
[ERROR] at org.jboss.threads.ContextHandler$1.runWith(ContextHandler.java:18)
[ERROR] at org.jboss.threads.EnhancedQueueExecutor$Task.doRunWith(EnhancedQueueExecutor.java:2651)
[ERROR] at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2630)
[ERROR] at org.jboss.threads.EnhancedQueueExecutor.runThreadBody(EnhancedQueueExecutor.java:1622)
[ERROR] at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1589)
[ERROR] at java.base/java.lang.Thread.run(Thread.java:1583)
[ERROR] at org.jboss.threads.JBossThread.run(JBossThread.java:501)
[ERROR] Caused by: java.lang.IllegalArgumentException: stream cannot be null
[ERROR] at org.jboss.jandex.Indexer.indexWithSummary(Indexer.java:2584)
[ERROR] at io.quarkus.deployment.index.IndexingUtil.indexClass(IndexingUtil.java:165)
[ERROR] ... 12 more
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <args> -rf :quarkus-mrp-build-time-entity-integration-tests
Expected behavior
The dynamic entity is indexed, available, and can be used by Hibernate.
Actual behavior
The entity cannot be found and Quarkus throws an obscure error.
How to Reproduce?
See reproducer in the bug details.
Output of uname -a or ver
Linux fedora 6.14.5-300.fc42.x86_64 #1 SMP PREEMPT_DYNAMIC Fri May 2 14:16:46 UTC 2025 x86_64 GNU/Linux
Output of java -version
java version "21.0.6" 2025-01-21 LTS Java(TM) SE Runtime Environment (build 21.0.6+8-LTS-188) Java HotSpot(TM) 64-Bit Server VM (build 21.0.6+8-LTS-188, mixed mode, sharing)
Quarkus version or git rev
3.23.4
Build tool (ie. output of mvnw --version or gradlew --version)
Apache Maven 3.9.8 (36645f6c9b5079805ea5009217e36f2cffd34256)
Additional information
No response