HHH-7567 - Better checking when @Enumerated involved

hibernate-core/src/main/java/org/hibernate/cfg/AnnotationBinder.java

@@ -2495,7 +2495,7 @@ public final class AnnotationBinder {
 			value.setColumns( columns );
 			value.setPersistentClassName( persistentClassName );
 			value.setMappings( mappings );
-			value.setType( inferredData.getProperty(), inferredData.getClassOrElement() );
+			value.setType( inferredData.getProperty(), inferredData.getClassOrElement(), persistentClassName );
 			value.setAccessType( propertyAccessor );
 			id = value.make();
 		}

hibernate-core/src/main/java/org/hibernate/cfg/annotations/CollectionBinder.java

@@ -1288,7 +1288,7 @@ public abstract class CollectionBinder {
 					column.setTable( collValue.getCollectionTable() );
 				}
 				elementBinder.setColumns( elementColumns );
-				elementBinder.setType( property, elementClass );
+				elementBinder.setType( property, elementClass, collValue.getOwnerEntityName() );
 				elementBinder.setPersistentClassName( propertyHolder.getEntityName() );
 				elementBinder.setAccessType( accessType );
 				collValue.setElement( elementBinder.make() );

hibernate-core/src/main/java/org/hibernate/cfg/annotations/MapBinder.java

@@ -282,7 +282,7 @@ public class MapBinder extends CollectionBinder {
 						elementBinder.setExplicitType( mapKeyTypeAnnotation.value() );
 					}
 					else {
-						elementBinder.setType( property, elementClass );
+						elementBinder.setType( property, elementClass, this.collection.getOwnerEntityName() );
 					}
 					elementBinder.setPersistentClassName( propertyHolder.getEntityName() );
 					elementBinder.setAccessType( accessType );

hibernate-core/src/main/java/org/hibernate/cfg/annotations/PropertyBinder.java

@@ -185,7 +185,7 @@ public class PropertyBinder {
 		simpleValueBinder.setReturnedClassName( returnedClassName );
 		simpleValueBinder.setColumns( columns );
 		simpleValueBinder.setPersistentClassName( containerClassName );
-		simpleValueBinder.setType( property, returnedClass );
+		simpleValueBinder.setType( property, returnedClass, containerClassName );
 		simpleValueBinder.setMappings( mappings );
 		simpleValueBinder.setReferencedEntityName( referencedEntityName );
 		simpleValueBinder.setAccessType( accessType );

hibernate-core/src/main/java/org/hibernate/cfg/annotations/SimpleValueBinder.java

@@ -140,10 +140,11 @@ public class SimpleValueBinder {
 
 	//TODO execute it lazily to be order safe
 
-	public void setType(XProperty property, XClass returnedClass) {
+	public void setType(XProperty property, XClass returnedClass, String declaringClassName) {
 		if ( returnedClass == null ) {
+			// we cannot guess anything
 			return;
-		} //we cannot guess anything
+		}
 		XClass returnedClassOrElement = returnedClass;
                 boolean isArray = false;
 		if ( property.isArray() ) {
@@ -237,6 +238,17 @@ public class SimpleValueBinder {
 		}
 		else if ( ( !key && property.isAnnotationPresent( Enumerated.class ) )
 				|| ( key && property.isAnnotationPresent( MapKeyEnumerated.class ) ) ) {
+			final Class attributeJavaType = mappings.getReflectionManager().toClass( returnedClassOrElement );
+			if ( !Enum.class.isAssignableFrom( attributeJavaType ) ) {
+				throw new AnnotationException(
+						String.format(
+								"Attribute [%s.%s] was annotated as enumerated, but its java type is not an enum [%s]",
+								declaringClassName,
+								xproperty.getName(),
+								attributeJavaType.getName()
+						)
+				);
+			}
 			type = EnumType.class.getName();
 			explicitType = type;
 		}

hibernate-core/src/test/java/org/hibernate/test/enums/InvalidEnumeratedJavaTypeTest.java

@@ -0,0 +1,61 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2012, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * This copyrighted material is made available to anyone wishing to use, modify,
+ * copy, or redistribute it subject to the terms and conditions of the GNU
+ * Lesser General Public License, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.test.enums;
+
+import javax.persistence.Entity;
+import javax.persistence.Enumerated;
+import javax.persistence.Id;
+
+import org.hibernate.AnnotationException;
+import org.hibernate.cfg.Configuration;
+
+import org.junit.Test;
+
+import org.hibernate.testing.junit4.BaseUnitTestCase;
+
+import static org.junit.Assert.fail;
+
+/**
+ * @author Steve Ebersole
+ */
+public class InvalidEnumeratedJavaTypeTest extends BaseUnitTestCase {
+	@Test
+	public void testInvalidMapping() {
+		final Configuration cfg = new Configuration();
+		try {
+			cfg.addAnnotatedClass( TheEntity.class );
+			cfg.buildMappings();
+			fail( "Was expecting failure" );
+		}
+		catch (AnnotationException expected) {
+			System.out.println( expected );
+		}
+	}
+
+	@Entity
+	public static class TheEntity {
+		@Id private Long id;
+		@Enumerated private Boolean yesNo;
+	}
+}