我是Spring Web Application的新人。现在，我尝试checkout libreplan和import作为Maven Project in Eclipse。
当我运行项目时，我得到以下错误：
[ERROR] Failed startup of context org.mortbay.jetty.plugin.Jetty6PluginWebAppContext@10cbe802{/libreplan-webapp,/Users/fanjavaid/Documents/Works/Projects/project_management/libreplan/libreplan-webapp/src/main/webapp}
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in URL [file:/Users/fanjavaid/Documents/Works/Projects/project_management/libreplan/libreplan-business/target/classes/libreplan-business-spring-config.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:/Users/fanjavaid/Documents/Works/Projects/project_management/libreplan/libreplan-business/target/classes/libreplan-business-spring-config.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:220)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:618)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:467)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1239)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:466)
at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:124)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)
at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:441)
at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:383)
at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:210)
at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:133)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:/Users/fanjavaid/Documents/Works/Projects/project_management/libreplan/libreplan-business/target/classes/libreplan-business-spring-config.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:470)
at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:277)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:139)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:79)
at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:71)
at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:84)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1572)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1540)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
... 52 more
这是我的 libreplan-business-spring-config.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<aop:aspectj-autoproxy/>
<!-- Data source. -->
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"
p:jndiName="${dataSource.jndiName}" p:resourceRef="true" />
<!-- Letting Spring do automatically exception translation -->
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<!-- Hibernate Session Factory. -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"
p:dataSource-ref="dataSource" p:configLocation="classpath:/libreplan-business-hibernate.cfg.xml">
<property name="mappingResources">
<list>
<value>
org/libreplan/business/advance/entities/Advance.hbm.xml
</value>
<value>
org/libreplan/business/resources/entities/Resources.hbm.xml
</value>
<value>
org/libreplan/business/orders/entities/Orders.hbm.xml
</value>
<value>
org/libreplan/business/templates/entities/Templates.hbm.xml
</value>
<value>
org/libreplan/business/planner/entities/Tasks.hbm.xml
</value>
<value>
org/libreplan/business/planner/entities/ResourceAllocations.hbm.xml
</value>
<value>
org/libreplan/business/workreports/entities/WorkReports.hbm.xml
</value>
<value>
org/libreplan/business/calendars/entities/Calendars.hbm.xml
</value>
<value>
org/libreplan/business/labels/entities/Labels.hbm.xml
</value>
<value>
org/libreplan/business/requirements/entities/Requirements.hbm.xml
</value>
<value>
org/libreplan/business/common/entities/Configuration.hbm.xml
</value>
<value>
org/libreplan/business/materials/entities/Materials.hbm.xml
</value>
<value>
org/libreplan/business/users/entities/Users.hbm.xml
</value>
<value>
org/libreplan/business/costcategories/entities/CostCategories.hbm.xml
</value>
<value>
org/libreplan/business/qualityforms/entities/QualityForms.hbm.xml
</value>
<value>
org/libreplan/business/common/entities/EntitySequence.hbm.xml
</value>
<value>
org/libreplan/business/externalcompanies/entities/ExternalCompanies.hbm.xml
</value>
<value>
org/libreplan/business/planner/entities/AdvanceConsolidations.hbm.xml
</value>
<value>
org/libreplan/business/planner/entities/SubcontractorCommunication.hbm.xml
</value>
<value>
org/libreplan/business/scenarios/entities/Scenarios.hbm.xml
</value>
<value>
org/libreplan/business/expensesheets/entities/ExpenseSheets.hbm.xml
</value>
<value>
org/libreplan/business/common/entities/Connector.hbm.xml
</value>
<value>
org/libreplan/business/common/entities/JobSchedulerConfiguration.hbm.xml
</value>
</list>
</property>
</bean>
<!-- Spring Transaction manager -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory" />
<!--
Enable configuration of transactional behavior based on annotations
-->
<tx:annotation-driven transaction-manager="transactionManager" />
<!--
For enabling annotation-based configuration (in particular, required
for Autowired annotation)
-->
<context:annotation-config />
<context:component-scan base-package="org.libreplan.business" />
<bean id="registry"
class="org.libreplan.business.common.Registry"
factory-method="getInstance" />
<bean id="CriterionRequirementOrderElementHandler"
class="org.libreplan.business.orders.entities.CriterionRequirementOrderElementHandler"
factory-method="getInstance" />
<bean id="versionInformation"
class="org.libreplan.business.common.VersionInformation"
factory-method="getInstance"
lazy-init="false">
<property name="projectVersion">
<value>${project.version}</value>
</property>
</bean>
<bean id="configuration"
class="org.libreplan.business.common.Configuration"
factory-method="getInstance"
lazy-init="false">
<property name="defaultPasswordsControl">
<value>${default.passwordsControl}</value>
</property>
<property name="exampleUsersDisabled">
<value>${default.exampleUsersDisabled}</value>
</property>
</bean>
<bean id="scenarioManager"
class="org.libreplan.business.scenarios.OnlyMainScenarioAwareManager"
scope="singleton"/>
</beans>
出现这种错误的原因是什么？有没有遗漏一些配置？