Transaction with Hibernate : NoSuchMethodError org/hibernate/proxy/LazyInitializer

[ENP]

Hi,

I use this context:

<beans>
	
	<!-- PostgreSQL JDBC DataSource configuration -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
		<property name="driverClassName" value="org.postgresql.Driver"/>
		<property name="url" value="jdbc:postgresql://m0/manager"/>
		<property name="username" value="manager"/>
		<property name="maxActive" value="-1"/>
	</bean>	
	
	<!-- Hibernate configuration -->
	<bean id="hibernateSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource"/>
		<property name="configLocation" value="classpath:receiver/hibernate.cfg.xml"/>
	</bean>
	<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="hibernateSessionFactory"/>
	</bean>    
	<bean id="transactionTransactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
		<property name="transactionManager" ref="transactionManager"/>
	</bean>
    
	<!-- Business logic beans -->
	<bean id="HTest" class="htest.ReaderInSeparateSessions" init-method="read">
		<property name="transactionTemplate" ref="transactionTransactionTemplate"/>
		<property name="hibernateSessionFactory" ref="hibernateSessionFactory"/>
	</bean>
	
</beans>

ReaderInSeparateSessions.java is:

public class ReaderInSeparateSessions {

	private Log log = LogFactory.getLog(getClass());
	private int i=0;
	
	private TransactionTemplate transactionTemplate;
	private SessionFactory hibernateSessionFactory;
	private Session hibernateSession = null;	
	
	public void setHibernateSessionFactory(SessionFactory hibernateSessionFactory) {
		this.hibernateSessionFactory = hibernateSessionFactory;
	}

	public void setTransactionTemplate(TransactionTemplate transactionTemplate) {
		this.transactionTemplate = transactionTemplate;
	}

	public void read() {
		hibernateSession = hibernateSessionFactory.getCurrentSession();
		while (true) {
			transactionTemplate.execute(new TransactionCallbackWithoutResult() {
			    @SuppressWarnings("unchecked")
				public void doInTransactionWithoutResult(TransactionStatus status) {
			    	for (MessageFilter filter : (List<MessageFilter>)hibernateSession.createQuery("from MessageFilter").list()) {
			    		log.debug("Filter ["+(i++)+"] : ["+filter+"]");
					}
			    }
			});
		}
	}
}

On running at 1700 iteration I got:

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'HTest' defined in class path resource [htest/context.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: manager.broker.model.User.getHibernateLazyInitializer()Lorg/hibernate/proxy/LazyInitializer;
Caused by: java.lang.NoSuchMethodError: manager.broker.model.User.getHibernateLazyInitializer()Lorg/hibernate/proxy/LazyInitializer;
        at manager.broker.model.User$$EnhancerByCGLIB$$1d14b5c9.getHibernateLazyInitializer(<generated>)
        at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:274)
        at org.hibernate.type.EntityType.resolve(EntityType.java:303)
        at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
        at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
        at org.hibernate.loader.Loader.doQuery(Loader.java:717)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
        at org.hibernate.loader.Loader.doList(Loader.java:2145)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
        at org.hibernate.loader.Loader.list(Loader.java:2024)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:308)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1106)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        at htest.ReaderInSeparateSessions$1.doInTransactionWithoutResult(ReaderInSeparateSessions.java:38)
        at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:33)
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)
        at htest.ReaderInSeparateSessions.read(ReaderInSeparateSessions.java:34)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:999)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:961)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:924)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:415)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:304)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:348)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:92)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:77)
        at htest.HTestStartup.main(HTestStartup.java:11)

Mapping is:

<hibernate-mapping>
    <class name="manager.broker.model.User" table="MANAGER_USERS">
		<id name="id" type="integer" column="ID">
			<generator class="native"/>
		</id>
		<property name="userName" length="25" column="USER_NAME" unique="true"/>
	</class>	
	<class name="manager.broker.model.MessageFilter" table="MANAGER_MESSAGES_FILTERS">
		<id name="id" type="integer" column="ID">
			<generator class="native"/>
		</id>
		<property name="expression"/>
		<property name="error" type="text"/>
		<many-to-one name="user" not-null="true" column="USER_ID" class="manager.broker.model.User"/>
	</class>
</hibernate-mapping>

I got this error only on selecting from MessageFilter, not from User

I can't use one session for all transactions because I got:

No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here

Any ideas?

[Costin Leau]

Check this out: http://opensource.atlassian.com/proj...rowse/HHH-1293