scottmarlow

diff --git a/hibernate-core/src/main/java/org/hibernate/bytecode/internal/bytebuddy/ByteBuddyState.java b/hibernate-core/src/main/java/org/hibernate/bytecode/internal/bytebuddy/ByteBuddyState.java
index 2bdfb646bf..613604561c 100644
--- a/hibernate-core/src/main/java/org/hibernate/bytecode/internal/bytebuddy/ByteBuddyState.java
+++ b/hibernate-core/src/main/java/org/hibernate/bytecode/internal/bytebuddy/ByteBuddyState.java
@@ -237,22 +237,25 @@ public final class ByteBuddyState {
                catch (ClassNotFoundException e) {
                        // Ignore
                }
-               try {
-                       return make( makeClassFunction.apply( byteBuddy, new FixedNamingStrategy( className ) ) )

scottmarlow

load:217, ByteBuddyState (org.hibernate.bytecode.internal.bytebuddy)
loadProxy:133, ByteBuddyState (org.hibernate.bytecode.internal.bytebuddy)
buildProxy:57, ByteBuddyProxyHelper (org.hibernate.proxy.pojo.bytebuddy)
postInstantiate:56, ByteBuddyProxyFactory (org.hibernate.proxy.pojo.bytebuddy)
createProxyFactory:280, EntityRepresentationStrategyPojoStandard (org.hibernate.metamodel.internal)
resolveProxyFactory:169, EntityRepresentationStrategyPojoStandard (org.hibernate.metamodel.internal)
<init>:135, EntityRepresentationStrategyPojoStandard (org.hibernate.metamodel.internal)
resolveStrategy:48, ManagedTypeRepresentationResolverStandard (org.hibernate.metamodel.internal)
<init>:517, AbstractEntityPersister (org.hibernate.persister.entity)
<init>:116, SingleTableEntityPersister (org.hibernate.persister.entity)

scottmarlow

	public Class<?> load(Class<?> referenceClass, String className, BiFunction<ByteBuddy, NamingStrategy, DynamicType.Builder<?>> makeClassFunction) {

    if (result.getClassLoader() == referenceClass.getClassLoader()) {
      
		  try {
			  return referenceClass.getClassLoader().loadClass(className);
		  }
		  catch (ClassNotFoundException e) {
			  // Ignore
		  }

scottmarlow

2025-06-09 14:48:56,493 INFO  [org.hibernate.bytecode.internal.bytebuddy.ByteBuddyState] (ServerService Thread Pool -- 10) xxx ByteBuddyState.load detected problem where loading generated class "com.sun.ts.tests.jpa.core.annotations.access.property.DataTypes2$HibernateAccessOptimizeratimeDataatsData" from a subdeployment is actually loading the generated class in the ear lib.
Details: referenceClass.getClassLoader() == ModuleClassLoader for Module "deployment.jpa_core_annotations_access_property_vehicles.ear.jpa_core_annotations_access_property_pmservlet_vehicle_web.war" from Service Module Loader
Loaded class classloader = ModuleClassLoader for Module "deployment.jpa_core_annotations_access_property_vehicles.ear" from Service Module Loader
2025-06-09 14:48:56,493 ERROR [stderr] (ServerService Thread Pool -- 10) java.lang.Exception: Stack trace
2025-06-09 14:48:56,493 ERROR [stderr] (ServerService Thread Pool -- 10) 	at java.base/java.lang.Thread.dumpStack(Thread.java:1389)
2025-06-09 14:48:56,493 ERROR [stde

scottmarlow

2025-06-06 10:48:36,337 INFO  [stdout] (default task-1) ************************************************************
2025-06-06 10:48:36,337 INFO  [stdout] (default task-1) * props file set to "/tmp/smarlow-cts-props.txt"
2025-06-06 10:48:36,337 INFO  [stdout] (default task-1) ************************************************************
2025-06-06 10:48:36,337 INFO  [stdout] (default task-1) In doPost!
2025-06-06 10:48:36,340 INFO  [stdout] (default task-1) ServletVehicle - got InputStream
2025-06-06 10:48:36,347 INFO  [stdout] (default task-1) read properties!!!
2025-06-06 10:48:36,372 INFO  [stdout] (default task-1) got outputstream
2025-06-06 10:48:36,467 INFO  [org.hibernate.persister.entity.AbstractEntityPersister] (default task-1) xxx AbstractEntityPersister.getPropertyValuesToInsert called with entity DataTypes[id: 1, Character: a, Short: 100, Integer: 500, Long: 300, Double: 50.0, Float: 1.0, CharacterArrayData: [a],, ByteArrayData: [100],, shouldNotPersist: null]  class from classloader ModuleClassLo

scottmarlow

test.log:[javatest.batch] 06-05-2025 19:04:04:  SVR-ERROR: java.lang.ClassCastException: class com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee cannot be cast to class com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee (com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee is in unnamed module of loader 'deployment.jpa_core_anno_access_mappedsc_vehicles.ear.jpa_core_anno_access_mappedsc_puservlet_vehicle_web.war' @1fc5fb10; com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee is in unnamed module of loader 'deployment.jpa_core_anno_access_mappedsc_vehicles.ear' @349ae008)
test.log:[javatest.batch] 06-05-2025 19:05:14:  SVR-ERROR: java.lang.ClassCastException: class com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee cannot be cast to class com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee (com.sun.ts.tests.jpa.core.annotations.access.mappedsc.FullTimeEmployee is in unnamed module of loader 'dep

scottmarlow

org.jboss.arquillian.container.spi.client.container.DeploymentException: Cannot deploy jpa_transaction.jar: {"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-1" => {"WFLYCTL0080: Failed services" => {"jboss.persistenceunit.\"jpa_transaction.jar#unsynchronized\"" => "jakarta.persistence.PersistenceException: [PersistenceUnit: unsynchronized] Unable to build Hibernate SessionFactory
    Caused by: jakarta.persistence.PersistenceException: [PersistenceUnit: unsynchronized] Unable to build Hibernate SessionFactory
    Caused by: org.hibernate.MappingException: Could not instantiate persister org.hibernate.persister.entity.SingleTableEntityPersister
    Caused by: java.lang.IllegalStateException: There is no field invocationTarget$2b5kal2 defined on class org.jboss.as.test.integration.jpa.transaction.Employee$HibernateAccessOptimizer5address5name
    Caused by: java.lang.NoSuchFieldException: invocationTarget$2b5kal2"}}}}
org.jboss.arquillian.container.spi.clien

scottmarlow

1. Test settings:

export testName=propertyTypeTest1_from_pmservlet
export testFolder=jpa/core/annotations/access/property
export wildflytckroot=$PWD
export singlecpu=yes

2. Test notes:

Note that the EAR deployment contains jpa_core_annotations_access_property_pmservlet_vehicle_web.war (I'll refer to this war as pmservlet_vehicle_web.war) which is used for this test run.  Other contained wars are deployed but not used in this test run.  

scottmarlow

In the below getPropertyValuesToInsert() (line 12) we have the entity (war classloader) and the accessOptimizer (ear classloader):

entity.getClass().getClassLoader() = "deployment.jpa_core_annotations_access_property_vehicles.ear.jpa_core_annotations_access_property_pmservlet_vehicle_web.war"

accessOptimizer.getClass().getClassLoader() = ModuleClassLoader for Module "deployment.jpa_core_annotations_access_property_vehicles.ear"

The ClassCastException is actually thrown from the generated DataTypes2$HibernateAccessOptimizeratimeDataatsData

ClassCastException callstack:

scottmarlow

2025-05-30 11:03:13,959 INFO  [stdout] (ServerService Thread Pool -- 3) 1: xxx AggregatedClassLoader.findClass( org.jboss.as.test.integration.jpa.hhh18901.DataTypes_) using classloader deployment.hhh18901.ear
2025-05-30 11:03:13,959 INFO  [stdout] (ServerService Thread Pool -- 3) 2: xxx AggregatedClassLoader.findClass( org.jboss.as.test.integration.jpa.hhh18901.DataTypes_) using classloader [email protected]
2025-05-30 11:03:13,959 INFO  [stdout] (ServerService Thread Pool -- 3) 3: xxx AggregatedClassLoader.findClass( org.jboss.as.test.integration.jpa.hhh18901.DataTypes_) using classloader deployment.hhh18901.ear
2025-05-30 11:03:13,959 INFO  [stdout] (ServerService Thread Pool -- 3) 4: xxx AggregatedClassLoader.findClass( org.jboss.as.test.integration.jpa.hhh18901.DataTypes_) using classloader app
2025-05-30 11:03:13,959 INFO  [org.hibernate.boot.registry.classloading.internal.AggregatedClassLoader] (ServerService Thread Pool -- 3) xxx AggregatedClassLoader.newClassLoaderIterator AFTER TCCL = dep