HHH-16832 Reproducer

As far as I can see, the problem is in:

5a63d8758a/hibernate-core/src/main/java/org/hibernate/bytecode/enhance/internal/bytebuddy/InlineDirtyCheckingHandler.java (L88-L90)

`GetterMapping` doesn't seem to work correctly when the getter is
defined in the superclass with a more abstract type.

hibernate-core/src/test/java/org/hibernate/orm/test/bytecode/enhance/internal/bytebuddy/DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest.java

@@ -0,0 +1,189 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later
+ * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
+ */
+package org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.assertj.core.extractor.Extractors.resultOf;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.ENTITY_ENTRY_FIELD_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.ENTITY_ENTRY_GETTER_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.ENTITY_INSTANCE_GETTER_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.NEXT_FIELD_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.NEXT_GETTER_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.NEXT_SETTER_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.PERSISTENT_FIELD_READER_PREFIX;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.PERSISTENT_FIELD_WRITER_PREFIX;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.PREVIOUS_FIELD_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.PREVIOUS_GETTER_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.PREVIOUS_SETTER_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_CLEAR_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_COMPOSITE_CLEAR_OWNER;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_COMPOSITE_FIELD_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_COMPOSITE_SET_OWNER;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_FIELD_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_GET_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_HAS_CHANGED_NAME;
+import static org.hibernate.bytecode.enhance.spi.EnhancerConstants.TRACKER_SUSPEND_NAME;
+
+import java.lang.reflect.Method;
+
+import org.hibernate.bytecode.enhance.internal.tracker.CompositeOwnerTracker;
+import org.hibernate.bytecode.enhance.internal.tracker.SimpleFieldTracker;
+
+import org.hibernate.testing.bytecode.enhancement.BytecodeEnhancerRunner;
+import org.hibernate.testing.bytecode.enhancement.EnhancementOptions;
+import org.hibernate.testing.orm.junit.JiraKey;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@RunWith(BytecodeEnhancerRunner.class)
+@EnhancementOptions(inlineDirtyChecking = true)
+public class DirtyCheckingWithEmbeddableAndNonVisibleGenericMappedSuperclassTest {
+
+	@JiraKey("HHH-16832")
+	public void shouldNotBreakConstructor() {
+		// This is the actual reproducer for HHH-16832,
+		// other method are just to be consistent with tests in the same package.
+		assertThatCode( () -> new MyEntity( 0, "Magic the Gathering" ) )
+				.doesNotThrowAnyException();
+	}
+
+	@Test
+	public void shouldDeclareFieldsInEntityClass() {
+		assertThat( MyEntity.class )
+				.hasDeclaredFields( ENTITY_ENTRY_FIELD_NAME, PREVIOUS_FIELD_NAME, NEXT_FIELD_NAME, TRACKER_FIELD_NAME );
+	}
+
+	@Test
+	public void shouldDeclareMethodsInEntityClass() {
+		assertThat( MyEntity.class )
+				.hasDeclaredMethods( PERSISTENT_FIELD_READER_PREFIX + "id", PERSISTENT_FIELD_WRITER_PREFIX + "id" )
+				.hasDeclaredMethods( PERSISTENT_FIELD_READER_PREFIX + "embedded", PERSISTENT_FIELD_WRITER_PREFIX + "embedded" )
+				.hasDeclaredMethods( ENTITY_INSTANCE_GETTER_NAME, ENTITY_ENTRY_GETTER_NAME )
+				.hasDeclaredMethods( PREVIOUS_GETTER_NAME, PREVIOUS_SETTER_NAME, NEXT_GETTER_NAME, NEXT_SETTER_NAME )
+				.hasDeclaredMethods( TRACKER_HAS_CHANGED_NAME, TRACKER_CLEAR_NAME, TRACKER_SUSPEND_NAME, TRACKER_GET_NAME );
+	}
+
+	@Test
+	public void shouldDeclareFieldsInEmbeddedClass() {
+		assertThat( MyEmbeddable.class )
+				.hasDeclaredFields( TRACKER_COMPOSITE_FIELD_NAME );
+	}
+
+	@Test
+	public void shouldDeclareMethodsInEmbeddedClass() {
+		assertThat( MyEmbeddable.class )
+				.hasDeclaredMethods( PERSISTENT_FIELD_READER_PREFIX + "text", PERSISTENT_FIELD_WRITER_PREFIX + "text" )
+				.hasDeclaredMethods( TRACKER_COMPOSITE_SET_OWNER, TRACKER_COMPOSITE_CLEAR_OWNER );
+	}
+
+	@Test
+	public void shouldCreateTheTracker() {
+		MyEntity entity = new MyEntity( 0, "value1" );
+		assertThat( entity )
+				.extracting( NEXT_FIELD_NAME ).isNull();
+		assertThat( entity )
+				.extracting( PREVIOUS_FIELD_NAME ).isNull();
+		assertThat( entity )
+				.extracting( ENTITY_ENTRY_FIELD_NAME ).isNull();
+		assertThat( entity )
+				.extracting( TRACKER_FIELD_NAME ).isInstanceOf( SimpleFieldTracker.class );
+		assertThat( entity.getEmbedded() )
+				.extracting( TRACKER_COMPOSITE_FIELD_NAME ).isInstanceOf( CompositeOwnerTracker.class);
+
+		assertThat( entity ).extracting( resultOf( TRACKER_HAS_CHANGED_NAME ) ).isEqualTo( true );
+		assertThat( entity ).extracting( resultOf( TRACKER_GET_NAME ) )
+				.isEqualTo( new String[] { "embedded" } );
+		assertThat( entity.getEmbedded() )
+				.extracting( TRACKER_COMPOSITE_FIELD_NAME + ".names" ).isEqualTo( new String[] { "embedded" } );
+	}
+
+	@Test
+	public void shouldResetTheTracker() throws Exception {
+		MyEntity entity = new MyEntity( 1, "value1" );
+
+		Method trackerClearMethod = MyEntity.class.getMethod( TRACKER_CLEAR_NAME );
+		trackerClearMethod.invoke( entity );
+
+		assertThat( entity ).extracting( resultOf( TRACKER_HAS_CHANGED_NAME ) ).isEqualTo( false );
+		assertThat( entity ).extracting( resultOf( TRACKER_GET_NAME ) ).isEqualTo( new String[0] );
+	}
+
+	@Test
+	public void shouldUpdateTheTracker() throws Exception {
+		MyEntity entity = new MyEntity( 2, "value1" );
+
+		Method trackerClearMethod = MyEntity.class.getMethod( TRACKER_CLEAR_NAME );
+		trackerClearMethod.invoke( entity );
+
+		entity.getEmbedded().setText( "value2" );
+
+		assertThat( entity ).extracting( resultOf( TRACKER_HAS_CHANGED_NAME ) ).isEqualTo( true );
+		assertThat( entity ).extracting( resultOf( TRACKER_GET_NAME ) )
+				.isEqualTo( new String[] { "embedded" } );
+
+		trackerClearMethod.invoke( entity );
+
+		entity.setEmbedded( new MyEmbeddable( "value3" ) );
+		assertThat( entity ).extracting( resultOf( TRACKER_GET_NAME ) )
+				.isEqualTo( new String[] { "embedded" } );
+		assertThat( entity.getEmbedded() )
+				.extracting( TRACKER_COMPOSITE_FIELD_NAME + ".names" ).isEqualTo( new String[] { "embedded" } );
+	}
+
+	@Embeddable
+	public static class MyEmbeddable {
+
+		@Column
+		private String text;
+
+		public MyEmbeddable() {
+		}
+
+		private MyEmbeddable(String text) {
+			this.text = text;
+		}
+
+		public String getText() {
+			return text;
+		}
+
+		public void setText(String text) {
+			this.text = text;
+		}
+	}
+
+	@Entity(name = "myentity")
+	public static class MyEntity extends MyNonVisibleGenericMappedSuperclass<MyEmbeddable> {
+
+		@Id
+		private Integer id;
+
+		public MyEntity() {
+		}
+
+		private MyEntity(Integer id, String text) {
+			this.id = id;
+			setEmbedded( new MyEmbeddable( text ) );
+		}
+
+		public Integer getId() {
+			return id;
+		}
+
+		public void setId(Integer id) {
+			this.id = id;
+		}
+
+	}
+
+}

hibernate-core/src/test/java/org/hibernate/orm/test/bytecode/enhance/internal/bytebuddy/MyNonVisibleGenericMappedSuperclass.java

@@ -0,0 +1,27 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later
+ * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
+ */
+package org.hibernate.orm.test.bytecode.enhance.internal.bytebuddy;
+
+import jakarta.persistence.Embedded;
+import jakarta.persistence.MappedSuperclass;
+
+// This class must not be nested in the test class, otherwise its private fields will be visible
+// from subclasses and we won't reproduce the bug.
+@MappedSuperclass
+public abstract class MyNonVisibleGenericMappedSuperclass<C> {
+
+	@Embedded
+	private C embedded;
+
+	public C getEmbedded() {
+		return embedded;
+	}
+
+	public void setEmbedded(C embedded) {
+		this.embedded = embedded;
+	}
+}