HHH-11111 - Hibernate does not correctly resolve embeddable in the metamodel

Add test case that proces thaat the issue does not replicate

hibernate-core/src/test/java/org/hibernate/test/metamodel/EmbeddableMetaModelTest.java

@@ -0,0 +1,35 @@
+/*
+ * 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.test.metamodel;
+
+import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
+import org.hibernate.testing.TestForIssue;
+import org.junit.Test;
+
+import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+public class EmbeddableMetaModelTest extends BaseEntityManagerFunctionalTestCase {
+    @Override
+    protected Class<?>[] getAnnotatedClasses() {
+        return new Class[]{
+            ProductEntity.class
+        };
+    }
+
+    @Test
+    @TestForIssue(jiraKey = "HHH-11111")
+    public void testEmbeddableCanBeResolvedWhenUsedAsInterface() {
+        doInJPA( this::entityManagerFactory, entityManager -> {
+            assertNotNull(entityManager.getMetamodel().embeddable(LocalizedValue.class));
+            assertEquals( LocalizedValue.class, ProductEntity_.description.getElementType().getJavaType() );
+            assertNotNull( LocalizedValue_.value );
+        } );
+    }
+
+}

hibernate-core/src/test/java/org/hibernate/test/metamodel/ILocalizable.java

@@ -0,0 +1,15 @@
+/*
+ * 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.test.metamodel;
+
+import java.io.Serializable;
+
+interface ILocalizable extends Serializable {
+	String getValue();
+
+	void setValue(String value);
+}

hibernate-core/src/test/java/org/hibernate/test/metamodel/LocalizedValue.java

@@ -0,0 +1,45 @@
+/*
+ * 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.test.metamodel;
+
+import java.util.Objects;
+import javax.persistence.Column;
+import javax.persistence.Embeddable;
+
+@Embeddable
+public class LocalizedValue implements ILocalizable {
+
+	@Column(name = "val")
+	private String value;
+
+	@Override
+	public String getValue() {
+		return value;
+	}
+
+	@Override
+	public void setValue(String value) {
+		this.value = value;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if ( this == o ) {
+			return true;
+		}
+		if ( ( o == null ) || ( getClass() != o.getClass() ) ) {
+			return false;
+		}
+		LocalizedValue that = ( (LocalizedValue) o );
+		return Objects.equals( value, that.value );
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash( value );
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/metamodel/ProductEntity.java

@@ -0,0 +1,63 @@
+/*
+ * 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.test.metamodel;
+
+import java.util.HashMap;
+import java.util.Map;
+import javax.persistence.CollectionTable;
+import javax.persistence.ElementCollection;
+import javax.persistence.Entity;
+import javax.persistence.ForeignKey;
+import javax.persistence.Id;
+import javax.persistence.Index;
+import javax.persistence.JoinColumn;
+import javax.persistence.MapKeyColumn;
+
+@Entity
+public class ProductEntity {
+
+	@Id
+	private Long pk;
+
+	@ElementCollection(targetClass = LocalizedValue.class)
+	@CollectionTable(
+		name = ( "product_name_lv" ),
+		joinColumns = {
+			@JoinColumn(
+				name = ( "product_pk" )
+			)
+		},
+		indexes = {
+			@Index(
+				name = ( "idx_product_name_lv" ),
+				columnList = ( "product_pk" )
+			)
+		},
+		foreignKey =
+			@ForeignKey(
+				name = ( "fk_product_name_lv" )
+			)
+	)
+	@MapKeyColumn(name = "locale")
+	private Map<String, ILocalizable> description = new HashMap<>();
+
+	public Long getPk() {
+		return pk;
+	}
+
+	public void setPk(Long pk) {
+		this.pk = pk;
+	}
+
+	public Map<String, ILocalizable> getDescription() {
+		return description;
+	}
+
+	public void setDescription(Map<String, ILocalizable> description) {
+		this.description = description;
+	}
+}