Unable to load the driver class

I have the postgresql-8.0.309.jdbc2.jar in my
application library directry. The Hibernate complains
it can't load the driver class. Any clues? The
followings are the error stack:

2005-04-06 15:01:46,953 WARN
net.sf.hibernate.util.JDBCExceptionReporter - SQL
Error: 0, SQLState: null
2005-04-06 15:01:46,953 ERROR
net.sf.hibernate.util.JDBCExceptionReporter - Cannot
load JDBC driver class 'org.postgresql.Driver'
2005-04-06 15:01:46,968 WARN
net.sf.hibernate.cfg.SettingsFactory - Could not
obtain connection metadata
org.apache.commons.dbcp.SQLNestedException: Cannot
load JDBC driver class 'org.postgresql.Driver'
at
org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:766)
at
org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
at
org.springframework.orm.hibernate.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:59)
at
net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84)
at
net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1160)
at
net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:794)
at
org.springframework.orm.hibernate.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:475)
at
org.springframework.orm.hibernate.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:413)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1037)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:305)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:223)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:236)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:159)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveReference(AbstractAutowireCapableBeanFactory.java:945)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveValueIfNecessary(AbstractAutowireCapableBeanFactory.java:879)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:820)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:648)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:288)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:223)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:236)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:159)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveReference(AbstractAutowireCapableBeanFactory.java:945)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveValueIfNecessary(AbstractAutowireCapableBeanFactory.java:879)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:820)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:648)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:288)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:223)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:236)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:159)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveReference(AbstractAutowireCapableBeanFactory.java:945)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveValueIfNecessary(AbstractAutowireCapableBeanFactory.java:879)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:820)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:648)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:288)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:223)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:236)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:159)
at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:496)
at
org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:162)
at
org.springframework.web.servlet.handler.SimpleUrlHandlerMapping.initApplicationContext(SimpleUrlHandlerMapping.java:96)
at
org.springframework.context.support.ApplicationObjectSupport.setApplicationContext(ApplicationObjectSupport.java:89)
at
org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:79)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:304)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:223)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:236)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:159)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:261)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:317)
at
org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:131)
at
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:283)
at
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:230)
at
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:199)
at
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:103)
at
javax.servlet.GenericServlet.init(GenericServlet.java:211)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1029)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:277)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:832)
at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:701)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432)
at
org.apache.catalina.startup.HostConfig.start(HostConfig.java:983)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
at
org.apache.catalina.core.StandardService.start(StandardService.java:480)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:2313)
at
org.apache.catalina.startup.Catalina.start(Catalina.java:556)
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:324)
at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)
Caused by: java.lang.ClassNotFoundException:
org.postgresql.Driver
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:854)
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:721)
at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at
org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:760)
... 81 more

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