HHH-18891: Reproduction of not found bug

orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ItemWithException.java

@@ -0,0 +1,75 @@
+package org.hibernate.bugs;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import org.hibernate.Hibernate;
+import org.hibernate.annotations.JoinColumnOrFormula;
+import org.hibernate.annotations.JoinColumnsOrFormulas;
+import org.hibernate.annotations.JoinFormula;
+import org.hibernate.annotations.NotFound;
+
+import java.util.Objects;
+
+import static org.hibernate.annotations.NotFoundAction.EXCEPTION;
+import static org.hibernate.annotations.NotFoundAction.IGNORE;
+
+@Entity
+@Table(name = "ITEM_WITH_EXCEPTION")
+public class ItemWithException {
+    public ItemWithException() {
+    }
+
+    public ItemWithException(Long itemId) {
+        this.itemId = itemId;
+    }
+
+    public ItemWithException(Long itemId, UnitReferenceCode unit) {
+        this.itemId = itemId;
+        this.unit = unit;
+    }
+
+    @Id
+    @Column(name = "ITEM_ID")
+    private Long itemId;
+
+    public Long getItemId() {
+        return itemId;
+    }
+
+    public void setItemId(Long itemId) {
+        this.itemId = itemId;
+    }
+
+    @ManyToOne
+    @NotFound(action = EXCEPTION)
+    @JoinColumnsOrFormulas(value = {
+            @JoinColumnOrFormula(formula = @JoinFormula(value = "'" + UnitReferenceCode.DOMAIN + "'", referencedColumnName = "domain")),
+            @JoinColumnOrFormula(column = @JoinColumn(name = "ITEM_TYPE", referencedColumnName = "code", insertable = false, updatable = false))
+    })
+    private UnitReferenceCode unit;
+
+    public UnitReferenceCode getUnit() {
+        return unit;
+    }
+
+    public void setUnit(UnitReferenceCode unit) {
+        this.unit = unit;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) return true;
+        if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) return false;
+        final ItemWithException that = (ItemWithException) o;
+        return Objects.equals(getItemId(), that.getItemId());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(getItemId());
+    }
+}

orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ItemWithIgnore.java

@@ -0,0 +1,74 @@
+package org.hibernate.bugs;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import org.hibernate.Hibernate;
+import org.hibernate.annotations.JoinColumnOrFormula;
+import org.hibernate.annotations.JoinColumnsOrFormulas;
+import org.hibernate.annotations.JoinFormula;
+import org.hibernate.annotations.NotFound;
+
+import java.util.Objects;
+
+import static org.hibernate.annotations.NotFoundAction.IGNORE;
+
+@Entity
+@Table(name = "ITEM_WITH_IGNORE")
+public class ItemWithIgnore {
+    public ItemWithIgnore() {
+    }
+
+    public ItemWithIgnore(Long itemId) {
+        this.itemId = itemId;
+    }
+
+    public ItemWithIgnore(Long itemId, UnitReferenceCode unit) {
+        this.itemId = itemId;
+        this.unit = unit;
+    }
+
+    @Id
+    @Column(name = "ITEM_ID")
+    private Long itemId;
+
+    public Long getItemId() {
+        return itemId;
+    }
+
+    public void setItemId(Long itemId) {
+        this.itemId = itemId;
+    }
+
+    @ManyToOne
+    @NotFound(action = IGNORE)
+    @JoinColumnsOrFormulas(value = {
+            @JoinColumnOrFormula(formula = @JoinFormula(value = "'" + UnitReferenceCode.DOMAIN + "'", referencedColumnName = "domain")),
+            @JoinColumnOrFormula(column = @JoinColumn(name = "ITEM_TYPE", referencedColumnName = "code", insertable = false, updatable = false))
+    })
+    private UnitReferenceCode unit;
+
+    public UnitReferenceCode getUnit() {
+        return unit;
+    }
+
+    public void setUnit(UnitReferenceCode unit) {
+        this.unit = unit;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) return true;
+        if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) return false;
+        final ItemWithIgnore that = (ItemWithIgnore) o;
+        return Objects.equals(getItemId(), that.getItemId());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(getItemId());
+    }
+}

orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/JPAUnitTestCase.java

@@ -1,5 +1,6 @@
 package org.hibernate.bugs;
 
+import org.hibernate.FetchNotFoundException;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -8,6 +9,9 @@
 import jakarta.persistence.EntityManagerFactory;
 import jakarta.persistence.Persistence;
 
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
 /**
  * This template demonstrates how to develop a test case for Hibernate ORM, using the Java Persistence API.
  */
@@ -25,13 +29,32 @@ void destroy() {
 		entityManagerFactory.close();
 	}
 
-	// Entities are auto-discovered, so just add them anywhere on class-path
-	// Add your tests, using standard JUnit.
 	@Test
-	void hhh123Test() throws Exception {
+	void notFoundItemWithIgnore() {
+		EntityManager entityManager = entityManagerFactory.createEntityManager();
+		entityManager.getTransaction().begin();
+
+		entityManager.createNativeQuery("insert into ITEM_WITH_IGNORE(ITEM_ID,ITEM_TYPE) values(12345, 'BOB')").executeUpdate();
+
+		final var item = entityManager.find(ItemWithIgnore.class, 12345L);
+		assertThat(item.getItemId()).isEqualTo(12345L);
+		assertThat(item.getUnit()).isNull();
+
+		entityManager.getTransaction().commit();
+		entityManager.close();
+	}
+
+	@Test
+	void notFoundItemWithException() {
 		EntityManager entityManager = entityManagerFactory.createEntityManager();
 		entityManager.getTransaction().begin();
-		// Do stuff...
+
+		entityManager.createNativeQuery("insert into ITEM_WITH_EXCEPTION(ITEM_ID,ITEM_TYPE) values(12345, 'BOB')").executeUpdate();
+
+		assertThatThrownBy(() -> entityManager.find(ItemWithException.class, 12345L))
+				.isInstanceOf(FetchNotFoundException.class)
+				.hasMessage("Entity `org.hibernate.bugs.UnitReferenceCode` with identifier value `ReferenceCode.Pk(domain=UNIT, code=BOB)` does not exist");
+
 		entityManager.getTransaction().commit();
 		entityManager.close();
 	}

orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ReferenceCode.java

@@ -0,0 +1,122 @@
+package org.hibernate.bugs;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Convert;
+import jakarta.persistence.DiscriminatorColumn;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.IdClass;
+import jakarta.persistence.Inheritance;
+import org.hibernate.Hibernate;
+import org.hibernate.type.YesNoConverter;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+@Entity(name = "REFERENCE_CODES")
+@DiscriminatorColumn(name = "domain")
+@Inheritance
+@IdClass(ReferenceCode.Pk.class)
+public abstract class ReferenceCode implements Serializable {
+
+    public ReferenceCode() {
+    }
+
+    public ReferenceCode(String domain, String code) {
+        this.domain = domain;
+        this.code = code;
+    }
+
+    public String getDomain() {
+        return this.domain;
+    }
+
+    public String getCode() {
+        return this.code;
+    }
+
+    public String toString() {
+        return "ReferenceCode(domain=" + this.getDomain() + ", code=" + this.getCode() + ")";
+    }
+
+    public static class Pk implements Serializable {
+        private String domain;
+        private String code;
+
+        public Pk(String domain, String code) {
+            this.domain = domain;
+            this.code = code;
+        }
+
+        public Pk() {
+        }
+
+        public String getDomain() {
+            return this.domain;
+        }
+
+        public String getCode() {
+            return this.code;
+        }
+
+        public boolean equals(final Object o) {
+            if (o == this) return true;
+            if (!(o instanceof Pk)) return false;
+            final Pk other = (Pk) o;
+            if (!other.canEqual((Object) this)) return false;
+            final Object this$domain = this.getDomain();
+            final Object other$domain = other.getDomain();
+            if (this$domain == null ? other$domain != null : !this$domain.equals(other$domain)) return false;
+            final Object this$code = this.getCode();
+            final Object other$code = other.getCode();
+            if (this$code == null ? other$code != null : !this$code.equals(other$code)) return false;
+            return true;
+        }
+
+        protected boolean canEqual(final Object other) {
+            return other instanceof Pk;
+        }
+
+        public int hashCode() {
+            final int PRIME = 59;
+            int result = 1;
+            final Object $domain = this.getDomain();
+            result = result * PRIME + ($domain == null ? 43 : $domain.hashCode());
+            final Object $code = this.getCode();
+            result = result * PRIME + ($code == null ? 43 : $code.hashCode());
+            return result;
+        }
+
+        public String toString() {
+            return "ReferenceCode.Pk(domain=" + this.getDomain() + ", code=" + this.getCode() + ")";
+        }
+    }
+
+    @Id
+    @Column(insertable = false, updatable = false)
+    private String domain;
+
+    @Id
+    private String code;
+
+    public static String getCodeOrNull(final ReferenceCode referenceCode) {
+        return referenceCode != null ? referenceCode.getCode() : null;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) return true;
+        if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) return false;
+        final ReferenceCode that = (ReferenceCode) o;
+
+        if (!Objects.equals(getDomain(), that.getDomain())) return false;
+        return Objects.equals(getCode(), that.getCode());
+    }
+
+    @Override
+    public int hashCode() {
+        int result = Objects.hashCode(getDomain());
+        result = 31 * result + (Objects.hashCode(getCode()));
+        return result;
+    }
+}

orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/UnitReferenceCode.java

@@ -0,0 +1,17 @@
+package org.hibernate.bugs;
+
+import jakarta.persistence.DiscriminatorValue;
+import jakarta.persistence.Entity;
+
+@Entity
+@DiscriminatorValue(UnitReferenceCode.DOMAIN)
+public class UnitReferenceCode extends ReferenceCode {
+    public UnitReferenceCode() {
+    }
+
+    public UnitReferenceCode(String code) {
+        super(DOMAIN, code);
+    }
+
+    public static final String DOMAIN = "UNIT";
+}