Could not initialize class org.hibernate.cfg.Configuration

[dreamday]

Hi all,

I am getting this exception after I try to load my app. I have the necessary hibernate jars in my classpath namely hibernate3.jar, hibernate-annotations.jar, hibernate-entitymanager.jar and hibernate-commons-annotations.jar. I have configured hibernate through spring. Here is my spring config:

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverM anagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/db"></property>
<property name="username" value="abc"></property>
<property name="password" value="abc123"></property>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotati on.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="annotatedClasses">
<list>
<value>com.gex.domain.NewAccount</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQ LDialect</prop>
</props>
</property>
</bean>

I also tried using a hibernate.properties file with the database settings but that did not help either.

The exception trace is:

Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/gex-servlet.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationExcepti on: Could not instantiate bean class [org.springframework.orm.hibernate3.annotation.Anno tationSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.Configuration

Any help with this issue will be greatly appreciated. Thanks in advance.

[shouab]

I think you missed some Spring libraries.

Check out your Spring libraries are on path basically it is showing the error for class which is not in hibernate but Spring.

[dreamday]

I do have the spring libs in the classpath, namely spring.jar, spring-mvc.jar, spring-context.jar, spring-jdbc.jar, spring-core.jar, etc.

[Andrei Tsibets]

Look in:

http://forum.springframework.org/showthread.php?t=64837

org.hibernate.cfg.Configuration is from hibernate-core.jar

[dreamday]

There is no jar called hibernate-core.jar. You must be referring to the zip file which in turn contains hibernate3.jar which contains org.hibernate.cfg.Configuration.class. As I mentioned in my post, I already have hibernate3.jar in my classpath and I also made sure that it contains the Configuration class.

[Andrei Tsibets]

Ok, hibernate3.jar,

Is your application web application? Can you check is hibernate3.jar jar deployed to application server?

[dreamday]

Yes, it has deployed it to the app server, in my case JBoss.

[Andrei Tsibets]

What exact version of hibernate do you use?

[dreamday]

The version shipped along with Spring 2.5.5, it's Hibernate 3 but I'm not sure of the exact version.

[Andrei Tsibets]

Can you check following libraries in classpath?

dom4j-1.6.1.jar
log4j-1.2.15.jar
slf4j-api-1.5.0.jar
slf4j-log4j12-1.5.0.jar

[dreamday]

Version is: 3.3.0.CR1

[dreamday]

I will check those when i get home. Thanks for the help.

[dreamday]

Hey Andrei, I added those jars that you mentioned and that got rid of the exception. Thanks again.