HHH-10256 - ClassCastException in ResultSetReturnImpl.java:75

Demonstrate that the issue does not replicate on latest Hibernate version

hibernate-c3p0/src/test/java/org/hibernate/test/c3p0/OracleSQLCallableStatementProxyTest.java

@@ -0,0 +1,162 @@
+package org.hibernate.test.c3p0;
+
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.List;
+import javax.persistence.Entity;
+import javax.persistence.EntityResult;
+import javax.persistence.FieldResult;
+import javax.persistence.Id;
+import javax.persistence.SqlResultSetMapping;
+import javax.persistence.SqlResultSetMappings;
+
+import org.hibernate.annotations.NamedNativeQuery;
+import org.hibernate.c3p0.internal.C3P0ConnectionProvider;
+import org.hibernate.cfg.Configuration;
+import org.hibernate.dialect.Oracle8iDialect;
+
+import org.hibernate.testing.RequiresDialect;
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Vlad Mihalcea
+ */
+@RequiresDialect(Oracle8iDialect.class)
+@TestForIssue( jiraKey = "HHH-10256" )
+public class OracleSQLCallableStatementProxyTest extends
+		BaseCoreFunctionalTestCase {
+
+	protected void configure(Configuration configuration) {
+		configuration.setProperty(
+				org.hibernate.cfg.AvailableSettings.CONNECTION_PROVIDER,
+				C3P0ConnectionProvider.class.getName()
+		);
+	}
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class<?>[] {
+			Person.class,
+		};
+	}
+
+	@Before
+	public void init() {
+		doInHibernate( this::sessionFactory, session -> {
+			session.doWork( connection -> {
+
+				Statement statement = null;
+				try {
+					statement = connection.createStatement();
+					statement.executeUpdate(
+						"CREATE OR REPLACE FUNCTION fn_person ( " +
+						"   personId IN NUMBER) " +
+						"    RETURN SYS_REFCURSOR " +
+						"IS " +
+						"    persons SYS_REFCURSOR; " +
+						"BEGIN " +
+						"   OPEN persons FOR " +
+						"        SELECT " +
+						"            p.id AS \"p.id\", " +
+						"            p.name AS \"p.name\", " +
+						"            p.nickName AS \"p.nickName\" " +
+						"       FROM person p " +
+						"       WHERE p.id = personId; " +
+						"   RETURN persons; " +
+						"END;"
+					);
+				}
+				catch (SQLException ignore) {
+				}
+				finally {
+					if ( statement != null ) {
+						statement.close();
+					}
+				}
+			} );
+		} );
+
+		doInHibernate( this::sessionFactory, session -> {
+			Person person1 = new Person();
+			person1.setId( 1L );
+			person1.setName( "John Doe" );
+			person1.setNickName( "JD" );
+			session.persist( person1 );
+		} );
+	}
+
+	@Test
+	public void testStoredProcedureOutParameter() {
+		doInHibernate( this::sessionFactory, session -> {
+			List<Object[]> persons = session
+					.createNamedQuery(
+							"getPerson")
+					.setParameter(1, 1L)
+					.getResultList();
+			assertEquals(1, persons.size());
+		} );
+	}
+
+	@NamedNativeQuery(
+			name = "getPerson",
+			query = "{ ? = call fn_person( ? ) }",
+			callable = true,
+			resultSetMapping = "person"
+	)
+	@SqlResultSetMappings({
+		@SqlResultSetMapping(
+			name = "person",
+			entities = {
+				@EntityResult(
+						entityClass = Person.class,
+						fields = {
+								@FieldResult( name = "id", column = "p.id" ),
+								@FieldResult( name = "name", column = "p.name" ),
+								@FieldResult( name = "nickName", column = "p.nickName" ),
+						}
+				)
+			}
+		),
+	})
+	@Entity(name = "Person")
+	@javax.persistence.Table(name = "person")
+	public static class Person {
+
+		@Id
+		private Long id;
+
+		private String name;
+
+		private String nickName;
+
+		public Long getId() {
+			return id;
+		}
+
+		public void setId(Long id) {
+			this.id = id;
+		}
+
+		public String getName() {
+			return name;
+		}
+
+		public void setName(String name) {
+			this.name = name;
+		}
+
+		public String getNickName() {
+			return nickName;
+		}
+
+		public void setNickName(String nickName) {
+			this.nickName = nickName;
+		}
+	}
+}