J'ai récemment mis à niveau une application Spring Boot basée sur Hibernate 4 vers Hibernate 5. Depuis, j'observe un problème de chargement de classe. Évidemment, les classes hibernate et ma classe de domaine sont chargées par deux chargeurs de classe différents. Cela ne se produit que si je lance l'application avec Spring DevTools et Hibernate 5. Les combinaisons DevTools/Hibernate 4, mvn spring-boot: run/Hibernate 5 fonctionnent.Erreur de chargement de classe avec Spring Boot et Hibernate 5
Le problème peut être reproduit avec l'application simple de démarrage au printemps suivant (l'ensemble du projet Eclipse est disponible here)
@Entity
public class Employee implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
private String firstName;
private String lastName;
public Employee() {
}
public Employee(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
@Id @GeneratedValue
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String toString() {
return id + ": " + lastName + ", " + firstName;
}
}
public class AppConfig {
@Autowired
private DataSource dataSource;
@SuppressWarnings("serial")
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource);
sessionFactory.setPackagesToScan("problem.domain");
sessionFactory.setHibernateProperties(new Properties() {
{
setProperty("hibernate.dialect", "org.hibernate.dialect.DerbyTenSevenDialect");
setProperty("hibernate.hbm2ddl.auto", "create-drop");
setProperty("hibernate.current_session_context_class", "thread");
}
});
return sessionFactory;
}
}
@Component
public class DatabaseInitializer implements ApplicationRunner {
@Autowired
private SessionFactory sessionFactory;
@Override
public void run(ApplicationArguments args) throws Exception {
Session session = sessionFactory.getCurrentSession();
Transaction tx = session.beginTransaction();
Employee empl = new Employee("John", "Doe");
session.persist(empl);
tx.commit();
}
}
@SpringBootApplication
public class SpringBootMain {
public static void main(String[] args) throws Exception {
SpringApplication.run(SpringBootMain.class, args);
}
}
pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>swt6.spring</groupId>
<artifactId>hibernate5-problem</artifactId>
<packaging>jar</packaging>
<version>1.0.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.2.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<hibernate.version>5.1.0.Final</hibernate.version>
<derby.version>10.12.1.1</derby.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
L'exécution de ce programme avec des résultats Spring DevTools dans l'erreur suivante:
2016-02-15 18:30:48.315 INFO 13828 --- [ restartedMain] o.h.t.schema.internal.SchemaCreatorImpl : HHH000476: Executing import script 'org.hiber[email protected]55ad1b60'
2016-02-15 18:30:48.509 INFO 13828 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2016-02-15 18:30:48.536 INFO 13828 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-02-15 18:30:48.582 ERROR 13828 --- [ restartedMain] o.h.p.access.spi.GetterMethodImpl : HHH000122: IllegalArgumentException in class: problem.domain.Employee, getter method of property: id
2016-02-15 18:30:48.583 ERROR 13828 --- [ restartedMain] o.s.boot.SpringApplication : Application startup failed
java.lang.IllegalStateException: Failed to execute ApplicationRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:800) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:787) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:777) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
at problem.main.SpringBootMain.main(SpringBootMain.java:10) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_66]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.3.2.RELEASE.jar:1.3.2.RELEASE]
Caused by: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of problem.domain.Employee.id
at org.hibernate.property.access.spi.GetterMethodImpl.get(GetterMethodImpl.java:64) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:223) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4633) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:4344) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.engine.internal.ForeignKeys.isTransient(ForeignKeys.java:226) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:499) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:99) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:58) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:778) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:751) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:756) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_66]
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:338) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at com.sun.proxy.$Proxy56.persist(Unknown Source) ~[na:na]
at problem.main.DatabaseInitializer.run(DatabaseInitializer.java:24) ~[classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:797) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
... 11 common frames omitted
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_66]
at org.hibernate.property.access.spi.GetterMethodImpl.get(GetterMethodImpl.java:41) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
... 29 common frames omitted
2016-02-15 18:30:48.585 INFO 13828 --- [ restartedMain] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/D:/P20058/Documents/FH/Lehre/SWT6U/Uebungen/SpringWeb/hibernate5-problem/target/classes/]
2016-02-15 18:30:48.585 INFO 13828 --- [ restartedMain] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report enable debug logging (start with --debug)
2016-02-15 18:30:48.585 INFO 13828 --- [ restartedMain] s.c.a.AnnotationConfigApplicationContext : Closing org.spring[email protected]63e38bca: startup date [Mon Feb 15 18:30:46 CET 2016]; root of context hierarchy
2016-02-15 18:30:48.587 INFO 13828 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
2016-02-15 18:30:48.587 INFO 13828 --- [ restartedMain] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed drop of schema as part of SessionFactory shut-down'
2016-02-15 18:30:48.604 INFO 13828 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2016-02-15 18:30:48.604 INFO 13828 --- [ restartedMain] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed drop of schema as part of SessionFactory shut-down'