Fix test leaking connections

hibernate-core/src/test/java/org/hibernate/test/bytecode/enhancement/basic/CrossEnhancementTest.java

@@ -21,6 +21,8 @@ import javax.persistence.MapsId;
 import javax.persistence.Table;
 import java.io.Serializable;
 
+import org.hibernate.SessionFactory;
+
 /**
  * @author Luis Barreiro
  */
@@ -35,6 +37,7 @@ public class CrossEnhancementTest extends BaseCoreFunctionalTestCase {
 
     @Test
     public void test() {
+        sessionFactory().close();
         buildSessionFactory();
     }