HHH-11413: Native named query creation fails unintuitively when no resultClass is specified

Author: Dariush Moshiri

hibernate-core/src/main/java/org/hibernate/internal/AbstractSharedSessionContract.java

@@ -966,6 +966,10 @@ else if ( namedQueryDefinition.getResultSetRef() != null ) {
 			throw new IllegalArgumentException( "Cannot create TypedQuery for query with more than one return" );
 		}
 
+		if ( queryReturns.length == 0 ) {
+			throw new IllegalArgumentException("Named query exists but its result type is not compatible");
+		}
+
 		final NativeSQLQueryReturn nativeSQLQueryReturn = queryReturns[0];
 
 		if ( nativeSQLQueryReturn instanceof NativeSQLQueryRootReturn ) {

hibernate-core/src/test/java/org/hibernate/jpa/test/query/NamedQueryTest.java

@@ -19,25 +19,27 @@
 import org.hibernate.Session;
 import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
 import org.hibernate.query.NativeQuery;
+
 import org.hibernate.testing.TestForIssue;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
 import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
 
 /**
  * @author Andrea Boriero
  */
 @TestForIssue(jiraKey = "HHH-11092")
 public class NamedQueryTest extends BaseEntityManagerFunctionalTestCase {
 
-	private static final String[] GAME_TITLES = {"Halo", "Grand Theft Auto", "NetHack"};
+	private static final String[] GAME_TITLES = { "Halo", "Grand Theft Auto", "NetHack" };
 
 	@Override
 	public Class[] getAnnotatedClasses() {
-		return new Class[] {Game.class};
+		return new Class[] { Game.class };
 	}
 
 	@Before
@@ -178,6 +180,18 @@ public void testNativeQueriesFromNamedQueriesDoNotShareQuerySpaces() {
 		} );
 	}
 
+	@Test
+	@TestForIssue(jiraKey = "HHH-11413")
+	public void testNamedNativeQueryExceptionNoRedultDefined() {
+		doInJPA( this::entityManagerFactory, entityManager -> {
+			assertThrows(
+					"Named query exists but its result type is not compatible",
+					IllegalArgumentException.class,
+					() -> entityManager.createNamedQuery( "NamedNativeQuery", Game.class )
+			);
+		} );
+	}
+
 	@Entity(name = "Game")
 	@NamedQueries(@NamedQuery(name = "NamedQuery", query = "select g from Game g where title = ?1"))
 	@NamedNativeQueries(@NamedNativeQuery(name = "NamedNativeQuery", query = "select * from Game g where title = ?"))