issue #1665, incorrect use of Hibernate session

frameworks/Java/grizzly-jersey/src/main/java/hello/DbResource.java

@@ -17,7 +17,6 @@ import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.Context;
 
-import org.hibernate.IdentifierLoadAccess;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
 
@@ -40,9 +39,6 @@ public class DbResource {
     final int queries = getQueries(queriesParam);
     final World[] worlds = new World[queries];
     final Random random = ThreadLocalRandom.current();
-    final Session session = sessionFactory.openSession();
-    session.setDefaultReadOnly(true);
-    final IdentifierLoadAccess accessor = session.byId(World.class);
 
     Map<Integer, Future<World>> futureWorlds = new ConcurrentHashMap<>();
     for (int i = 0; i < queries; i++) {
@@ -50,7 +46,10 @@ public class DbResource {
         new Callable<World>() {
           @Override
           public World call() throws Exception {
-            return (World) accessor.load(random.nextInt(DB_ROWS) + 1);
+            Session session = sessionFactory.openSession();
+            session.setDefaultReadOnly(true);
+
+            return (World) session.byId(World.class).load(random.nextInt(DB_ROWS) + 1);
           }
         }
       ));