Error Creating SessionFactory

2010-10-05 13:13:01,890 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Closing org.springframework.web.context.support.XmlWebApplicationContext@16d2633: display name [Root WebApplicationContext]; startup date [Tue Oct 05 13:12:50 CST 2010]; root of context hierarchy>
2010-10-05 13:13:01,890 INFO [org.springframework.beans.factory.support.DefaultListableBeanFactory] - <Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@14a18d: defining beans [hibernateBaseDAO,sellChanceDAO,sellChanceService,sellChanceTableBean,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,dataSource,sessionFactory,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,txManager]; root of factory hierarchy>
2010-10-05 13:13:01,937 INFO [org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean] - <Closing Hibernate SessionFactory>
%%%% Error Creating SessionFactory %%%%
java.lang.NullPointerException
at org.hibernate.cfg.Configuration.configure(Configuration.java:1518)
at com.number.domain.HibernateSessionFactory.<clinit>(HibernateSessionFactory.java:30)
at sun.misc.Unsafe.ensureClassInitialized(Native Method)
at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:25)
at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:122)
at java.lang.reflect.Field.acquireFieldAccessor(Field.java:918)
at java.lang.reflect.Field.getFieldAccessor(Field.java:899)
at java.lang.reflect.Field.set(Field.java:657)
at org.apache.catalina.loader.WebappClassLoader.clearReferencesStaticFinal(WebappClassLoader.java:2034)
at org.apache.catalina.loader.WebappClassLoader.clearReferences(WebappClassLoader.java:1894)
at org.apache.catalina.loader.WebappClassLoader.stop(WebappClassLoader.java:1798)
at org.apache.catalina.loader.WebappLoader.stop(WebappLoader.java:738)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4812)
at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:450)
at org.apache.catalina.core.StandardService.stop(StandardService.java:587)
at org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
at org.apache.catalina.startup.Catalina.stop(Catalina.java:648)
at org.apache.catalina.startup.Catalina.start(Catalina.java:615)
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:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)谁帮忙看看这是什么问题