Message Title

But when I create an EnhancedUserType for my own types and use them in an entity for the ID column like this

@Entity
public class EntityB {
    @Id
    @Type(StringWrapperUserType.class)
    public StringWrapper id;

    // ...
}

@Entity
public class EntityA {
    @Id
    @Type(StringWrapperUserType.class)
    private StringWrapper id;

    @OneToMany(cascade = CascadeType.ALL)
    private Set<EntityB> entityBSet;

    // ...
}

java.lang.ArrayStoreException: org.acme.types.StringWrapper
	at org.hibernate.type.descriptor.java.ArrayJavaType.unwrap(ArrayJavaType.java:318)
	at org.hibernate.type.descriptor.java.ArrayJavaType.unwrap(ArrayJavaType.java:40)
	at org.hibernate.type.descriptor.jdbc.ArrayJdbcType$1.getArray(ArrayJdbcType.java:156)
	at org.hibernate.type.descriptor.jdbc.ArrayJdbcType$1.doBind(ArrayJdbcType.java:116)
	at org.hibernate.type.descriptor.jdbc.BasicBinder.bind(BasicBinder.java:61)
	at org.hibernate.sql.exec.internal.AbstractJdbcParameter.bindParameterValue(AbstractJdbcParameter.java:118)
	at org.hibernate.sql.exec.internal.AbstractJdbcParameter.bindParameterValue(AbstractJdbcParameter.java:108)
	at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.bindParameters(DeferredResultSetAccess.java:199)
	at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.executeQuery(DeferredResultSetAccess.java:228)
	at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.getResultSet(DeferredResultSetAccess.java:163)
	at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.advanceNext(JdbcValuesResultSetImpl.java:254)
	at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.processNext(JdbcValuesResultSetImpl.java:134)
	at org.hibernate.sql.results.jdbc.internal.AbstractJdbcValues.next(AbstractJdbcValues.java:19)
	at org.hibernate.sql.results.internal.RowProcessingStateStandardImpl.next(RowProcessingStateStandardImpl.java:66)
	at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:178)
	at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:33)
	at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.doExecuteQuery(JdbcSelectExecutorStandardImpl.java:361)
	at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.executeQuery(JdbcSelectExecutorStandardImpl.java:168)
	at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.list(JdbcSelectExecutorStandardImpl.java:93)
	at org.hibernate.sql.exec.spi.JdbcSelectExecutor.list(JdbcSelectExecutor.java:31)
	at org.hibernate.loader.ast.internal.CollectionBatchLoaderArrayParam.initializeKeys(CollectionBatchLoaderArrayParam.java:193)
	at org.hibernate.loader.ast.internal.CollectionBatchLoaderArrayParam.load(CollectionBatchLoaderArrayParam.java:114)
	at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:680)
	at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:75)
	at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:127)
	at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:1702)
	at org.hibernate.collection.spi.AbstractPersistentCollection.lambda$initialize$3(AbstractPersistentCollection.java:617)
	at org.hibernate.collection.spi.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:265)
	at org.hibernate.collection.spi.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:615)
	at org.hibernate.collection.spi.AbstractPersistentCollection.read(AbstractPersistentCollection.java:136)
	at org.hibernate.collection.spi.AbstractPersistentCollection.lambda$readSize$0(AbstractPersistentCollection.java:163)
	at org.hibernate.collection.spi.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:265)
	at org.hibernate.collection.spi.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:148)
	at org.hibernate.collection.spi.PersistentSet.size(PersistentSet.java:151)

The problem is, that in the unwrap method a String array is created, but the code tries to assign a StringWrapper instance.

@Override
public <X> X unwrap(T[] value, Class<X> type, WrapperOptions options) {
    // [...]
    else if ( type.isArray() ) {
        final Class<?> preferredJavaTypeClass = type.getComponentType();
        // unwrapped == String[16]
        final Object[] unwrapped = (Object[]) Array.newInstance( preferredJavaTypeClass, value.length );
        for ( int i = 0; i < value.length; i++ ) {
            // the right side returns a StringWrapper instance
            unwrapped[i] = getElementJavaType().unwrap( value[i], preferredJavaTypeClass, options );
        }
        //noinspection unchecked
        return (X) unwrapped;
    }

    throw unknownUnwrap( type );
}

I created a reproducer, which is based on Quarkus 3.2.1.Final, which uses hibernate-core in version 6.2.6.Final.

Beside of the application properties there is no Quarkus specific functionality/code inside.