Error in spring-hibernate application

**ucancprem** · Nov 7th, 2012, 03:25 PM

I am new to Spring, i am trying to create a simple project with spring and Hibernate with annotations(without use of configuration and mapping XML's). I am held up with this below error since 3 days.

Below is the stack trace of the error

Code:

ERROR [org.springframework.web.servlet.DispatcherServlet] (MSC service thread 1-1) Context initialization failed: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:591) [org.springframework.beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) [org.springframework.context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:469) [org.springframework.context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631) [org.springframework.web.servlet-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:588) [org.springframework.web.servlet-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:645) [org.springframework.web.servlet-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:508) [org.springframework.web.servlet-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:449) [org.springframework.web.servlet-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133) [org.springframework.web.servlet-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at javax.servlet.GenericServlet.init(GenericServlet.java:242) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1102) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3655) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3873) [jbossweb-7.0.13.Final.jar:]
	at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:90) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_25]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_25]
	at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]
Caused by: java.lang.NullPointerException
	at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:207) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2277) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2273) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1742) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1782) [hibernate-core-4.1.3.Final.jar:4.1.3.Final]
	at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:242) [org.springframework.orm-3.1.2.RELEASE.jar:3.1.2.RELEASE]

Here is the code

[ Spring-servlet.xml]

Code:

<?xml version="1.0" encoding="UTF-8"?>
<beans ...>

	<context:property-placeholder location="classpath:jdbc.properties" />
	
	<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="${database.driver}" />
		<property name="url" value="${database.url}" />
		<property name="username" value="${database.username}" />
		<property name="password" value="${database.password}" />
	</bean>

	<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="annotatedClasses">
			<list>
				<value>com.spring.form.Items</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.connection.pool_size">${hibernate.connection.pool_size}</prop>
			</props>
		</property>
	</bean>

	<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	
    <context:component-scan base-package="com.spring" />
    
    <tx:annotation-driven transaction-manager="transactionManager"/>
    
    
</beans>

Controller

Code:

@Controller
@RequestMapping("/receiptsnew")
public class ReceiptsSpringController {

@Autowired
private ReceiptsService receiptsService;

public ReceiptsSpringController()
{

}

@RequestMapping(value="/save", method=RequestMethod.POST)
public ModelAndView saveItems(@ModelAttribute("item")Items item, BindingResult result)
{
    receiptsService.addItem(item);

    return new ModelAndView("redirect:/receiptsnew.html");

}

@RequestMapping(method=RequestMethod.GET)
public ModelAndView viewItems()
{
    Map model= new HashMap();
    model.put("items", receiptsService.getAllItems());
    //items is just a key values

    return new ModelAndView("itemsView",model);
}

@RequestMapping(value="/add", method=RequestMethod.GET)
public ModelAndView addItems(@ModelAttribute("item")Items item, BindingResult result) 
{
    return new ModelAndView("itemAdd"); 
}
}

DAO

Code:

import java.util.List;


@Repository("itemDao")
public class HibernateItemDao implements ItemDao {

@Autowired
private SessionFactory sessionFactory;


public void saveItem(Items item) {
    // TODO Auto-generated method stub
    sessionFactory.getCurrentSession().saveOrUpdate(item);
}

@SuppressWarnings("unchecked")
public List<Items> getAllItems() {
    // TODO Auto-generated method stub
    return sessionFactory.getCurrentSession().createCriteria(Items.class).list();
}

}

Service layer

Code:

@Service("receiptsService")
@Transactional(propagation=Propagation.SUPPORTS, readOnly=true)
public class ReceiptsServiceImpl implements ReceiptsService {

@Autowired
private ItemDao itemDao;

@Transactional(propagation=Propagation.REQUIRED,readOnly=false)
public void addItem(Items item) {
    // TODO Auto-generated method stub
    itemDao.saveItem(item);
}

public List<Items> getAllItems() {
    // TODO Auto-generated method stub
    return itemDao.getAllItems();
}

}

jar's

jars.jpg

properties

props.jpg

**ucancprem** · Nov 8th, 2012, 10:20 AM

how do i know if some one is looking at this??

**webappRound3** · Nov 8th, 2012, 11:40 AM

I'm also new to this stuff but the error indicates that you've got an error/issue in this code :

Code:

	<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="annotatedClasses">
			<list>
				<value>com.spring.form.Items</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.connection.pool_size">${hibernate.connection.pool_size}</prop>
			</props>
		</property>
	</bean>

Are you sure the ${hibernate.dialect} and other macros are being filled in with real values? I'd try hard-coding them to particular values and see if your issue(s) go away..

I know the java error messages are a pain to weed through but the key items of interest are the following :

Code:

ERROR [org.springframework.web.servlet.DispatcherServlet] (MSC service thread 1-1) Context initialization failed: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException

It's telling you that it tried to create/instantiate a sessionFactory bean based on the info you provided above but had an issue with it for whatever reason.. That should be enough to dig deeper into that set of properties to play around.. and hopefully determine what is causing your problem..

**ucancprem** · Nov 8th, 2012, 12:04 PM

Thank you!!!, i shall try that and will post the outcome...

**webappRound3** · Nov 8th, 2012, 12:16 PM

That'd be nice.. I think in general you should always look at that very first line of the exception to give you a good idea of what crapped out -- I believe the rest is just a stack-dump of how it got there.. In your particular case it may be that the code is missing (or whatever fills that stuff in) that initializes those macros to particular values -- once you figure that out you're probably ready to continue..

**ucancprem** · Nov 8th, 2012, 01:15 PM

Unfortunately, that one did not solve the error... still get the same error...

org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException....

**webappRound3** · Nov 8th, 2012, 02:04 PM

Can you post the full content of your spring-servlet.xml file?

**ucancprem** · Nov 8th, 2012, 02:33 PM

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schem...-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schem...ontext-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

<context

roperty-placeholder location="classpath:jdbc.properties" />

<bean id="jspViewResolver" class="org.springframework.web.servlet.view.Intern alResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlVi ew" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverM anagerDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@app1.coreebusiness.com:15 21:oracle" />
<property name="username" value="Allegro" />
<property name="password" value="Allegro" />
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSes sionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses">
<list>
<value>com.spring.form.Items</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Orac le10gDialect</prop>
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.connection.pool_size">20</prop>
</props>
</property>
</bean>

<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTran sactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<context:component-scan base-package="com.spring" />

<tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

**webappRound3** · Nov 8th, 2012, 03:08 PM

Can you please re-post or edit the above post to put the code snippet in [code] tags please? That way nothing is misinterpretted by the forum software.. like it is now with occasional happy faces, added spaces, etc..

**ucancprem** · Nov 8th, 2012, 03:21 PM

Code:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

	<context:property-placeholder location="classpath:jdbc.properties" />
	
	<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
		<property name="url" value="jdbc:oracle:thin:@app1.coreebusiness.com:1521:oracle" />
		<property name="username" value="Allegro" />
		<property name="password" value="Allegro" />
	</bean>

	<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="annotatedClasses">
			<list>
				<value>com.spring.form.Items</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
				<prop key="hibernate.show_sql">false</prop>
				<prop key="hibernate.connection.pool_size">20</prop>
			</props>
		</property>
	</bean>

	<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	
    <context:component-scan base-package="com.spring" />
    
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

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