BAEL-9408: Resolving Hibernate SyntaxException: token '*', no viable alternative

Author: azhwani

persistence-modules/hibernate-exceptions-2/src/main/java/com/baeldung/hibernate/syntaxexception/HibernateUtil.java

@@ -0,0 +1,39 @@
+package com.baeldung.hibernate.syntaxexception;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.hibernate.SessionFactory;
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import org.hibernate.service.ServiceRegistry;
+
+public class HibernateUtil {
+ private static SessionFactory sessionFactory;
+
+ public static SessionFactory getSessionFactory() {
+ if (sessionFactory == null) {
+ Map<String, Object> settings = new HashMap<>();
+ settings.put("hibernate.connection.driver_class", "org.h2.Driver");
+ settings.put("hibernate.connection.url", "jdbc:h2:mem:test");
+ settings.put("hibernate.connection.username", "sa");
+ settings.put("hibernate.connection.password", "");
+ settings.put("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
+ settings.put("hibernate.show_sql", "true");
+ settings.put("hibernate.hbm2ddl.auto", "update");
+
+ ServiceRegistry standardRegistry = new StandardServiceRegistryBuilder().applySettings(settings)
+ .build();
+
+ Metadata metadata = new MetadataSources(standardRegistry).addAnnotatedClass(Person.class)
+ .getMetadataBuilder()
+ .build();
+
+ sessionFactory = metadata.getSessionFactoryBuilder()
+ .build();
+ }
+
+ return sessionFactory;
+ }
+}

persistence-modules/hibernate-exceptions-2/src/main/java/com/baeldung/hibernate/syntaxexception/Person.java

@@ -0,0 +1,14 @@
+package com.baeldung.hibernate.syntaxexception;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@Entity
+public class Person {
+
+ @Id
+ private int id;
+ private String firstName;
+ private String lastName;
+
+}

persistence-modules/hibernate-exceptions-2/src/test/java/com/baeldung/hibernate/syntaxexception/SyntaxExceptionUnitTest.java

@@ -0,0 +1,45 @@
+package com.baeldung.hibernate.syntaxexception;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import org.hibernate.Session;
+import org.hibernate.query.SyntaxException;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import com.baeldung.hibernate.exception.persistentobject.HibernateUtil;
+
+class SyntaxExceptionUnitTest {
+
+ private static Session session;
+
+ @BeforeAll
+ static void beforeAll() {
+ session = HibernateUtil.getSessionFactory()
+ .openSession();
+ session.beginTransaction();
+ }
+
+ @AfterAll
+ static void afterAll() {
+ session.close();
+ }
+
+ @Test
+ void whenUsingInvalidHQLSyntax_thenThrowSyntaxException() {
+ assertThatThrownBy(() -> {
+ session.createQuery("SELECT * FROM Person p", Person.class)
+ .list();
+ }).hasRootCauseInstanceOf(SyntaxException.class)
+ .hasMessageContaining("token '*', no viable alternative");
+ }
+
+ @Test
+ void whenUsingValidHQLSyntax_thenCorrect() {
+ assertThat(session.createQuery("SELECT p FROM Person p", Person.class)
+ .list()).isEmpty();
+ }
+
+}