Hibernate 4 Error on sessionFactory creation - spring

Question

During upgrading to Hibernate 4 from its 3.v, I run into this problem occurred at the TC starting up.
... Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/app-config.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:506)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
... 43 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/app-config.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:848)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:790)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 45 more
Caused by: java.lang.NullPointerException
at org.hibernate.cfg.Configuration.processFkSecondPassInOrder(Configuration.java:1415)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1355)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1724)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1775)
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:184)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:314)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
... 55 more
And the sessionFactory in my configuration file is done as the following:
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mappingResources">
<list>
<value>shippingCharge.hbm.xml</value>
</list>
</property>
<property name="annotatedClasses">
<list>
<value>com.abc.myapp.account.domain.ProfileInfo</value>
<value>com.abc.myapp.account.domain.Profile</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop>
<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.DefaultComponentSafeNamingStrategy
</prop>
</props>
</property>
<!-- removed for hibernate 4. any replacement?
<property name="eventListeners">
<map>
<entry key="merge">
<bean
class="org.springframework.orm.hibernate3.support.IdTransferringMergeEventListener" />
</entry>
</map>
</property>
-->
</bean>
How to solve this problem?

Answer 1

Please replace org.springframework.orm.hibernate4.LocalSessionFactoryBuilder instead of org.springframework.orm.hibernate4.LocalSessionFactoryBean. This might help.

Answer 2

it's maybe a spring issue.
you can change
<property name="annotatedClasses">
to
<property name="packagesToScan"
and try it again

Answer 3

this may be a stale jar file issue, i ran with the same error
then in my log file i found Could not obtain connection metadata : DatabaseMetaData information is not known for server DB2/LINUXX8664SQL09010 by this version of JDBC driver
then i replaced my this project db2 jar files with one running project jars and it starts running smoothly

Answer 4

I was facing similar issue in my code. Then i tried updating the recent versions of DB2 jars into my server and the code started working. Try to update your DB2 jar.