GWT开发模式+ Spring 3.1 + Hibernate 4.0.1中的异常 [英] Exception in GWT Dev Mode + Spring 3.1 + Hibernate 4.0.1

问题描述

我有一个GWT + Hibernate + JPA + Spring配置文件，对于Spring 3.0.x + Hibernate 3.6.x可以。当我升级到Spring 3.1和Hibernate 4.0时，会引发以下异常：

I have a GWT+Hibernate+JPA+Spring configuration file which is OK with Spring 3.0.x + Hibernate 3.6.x. When I upgraded to Spring 3.1 and Hibernate 4.0, the following exception is thrown:

是否存在与Hibernate 4和Spring 3.1不兼容的问题？

Is there any known incompatibility withe Hibernate 4 and Spring 3.1?

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [META-INF/application-context.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: myPu] Unable to build EntityManagerFactory
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
    at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:543)
    at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1220)
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:513)
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
    at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:468)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
    at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    at org.mortbay.jetty.handler.RequestLogHandler.doStart(RequestLogHandler.java:115)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
    at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    at org.mortbay.jetty.Server.doStart(Server.java:222)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
    at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:672)
    at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509)
    at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1068)
    at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:811)
    at com.google.gwt.dev.DevMode.main(DevMode.java:311)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: naftPu] Unable to build EntityManagerFactory
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:889)
    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:257)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
    ... 30 more
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:187)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:150)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:234)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:91)
    at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
    at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
    at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2270)
    at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2266)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1735)
    at org.hibernate.ejb.EntityManagerFactoryImpl.(EntityManagerFactoryImpl.java:84)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904)
    ... 36 more
Caused by: org.hibernate.HibernateException: Could not instantiate connection provider [org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider]
    at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.instantiateExplicitConnectionProvider(ConnectionProviderInitiator.java:190)
    at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.initiateService(ConnectionProviderInitiator.java:112)
    at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.initiateService(ConnectionProviderInitiator.java:54)
    at org.hibernate.service.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:69)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:177)
    ... 49 more
Caused by: java.lang.ClassCastException: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider cannot be cast to org.hibernate.service.jdbc.connections.spi.ConnectionProvider
    at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.instantiateExplicitConnectionProvider(ConnectionProviderInitiator.java:187)
    ... 53 more

这是我的application-context.xml配置的一部分：

Here is part of my application-context.xml config:

<bean id="mainDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="oracle.jdbc.OracleDriver" />
    <property name="url" value="***manually deleted***" />
    <property name="username" value="myschema" />
    <property name="password" value="myschema" />
    <property name="initialSize" value="1" />
    <property name="maxActive" value="4" />
    <property name="maxIdle" value="-1" />
    <property name="maxWait" value="10000" />
</bean>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" p:persistenceUnitName="myPu">
    <property name="dataSource" ref="mainDataSource" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" p:showSql="true" p:generateDdl="true"
            p:database="ORACLE" p:databasePlatform="org.hibernate.dialect.Oracle10gDialect" />
    </property>
    <property name="jpaPropertyMap">
        <map merge="true">
            <entry key="hibernate.archive.autodetection" value="class" />
            <entry key="hibernate.format_sql" value="false" />
            <entry key="hibernate.hbm2ddl.auto" value="false" />
            <entry key="hibernate.default_schema" value="myschema" />
        </map>
    </property>
</bean>

persistence.xml：

persistence.xml:

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0">
    <persistence-unit name="myPu" transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
    </persistence-unit>
</persistence>

推荐答案

这个问题已修复在Hibernate 4.1.4中。

This issue is fixed in Hibernate 4.1.4.

我有同样的问题，它似乎与Jetty classloader（GWT插件使用Jetty用于托管模式），GWT插件和Hibernate相关（尽管它显然也与其他库一样） 。

I had the same problem, and it seems to be related to the Jetty classloader (the GWT plugin uses Jetty for hosted mode), the GWT plugin and Hibernate (although it apparently crops up with other libraries as well).

它与此处提到的错误类似 Hibernate Bug Report ，但在我们的案例中，我们通过GWT插件运行它，并导致ConnectionProvider的ClassCastException。

It's similar to the bug mentioned here Hibernate Bug Report but in our cases we're running it via the GWT plugin and it causes a ClassCastException for the ConnectionProvider.

错误中提到的修复报告应该解决这个问题。

The fix mentioned in the bug report should fix that particular problem.

对于org.hibernate.service.classloading.internalClassLoaderServiceImpl，通过构造函数将父元素设置为null：

For org.hibernate.service.classloading.internalClassLoaderServiceImpl set the parent to null via the constructor:

this.classClassLoader = new ClassLoader(null) {
        @Override
        protected Class<?> findClass(String name) throws ClassNotFoundException {
            for ( ClassLoader loader : classLoadingClassLoaders ) {
                try {
                    return loader.loadClass( name );
                }
                catch (Exception ignore) {
                }
            }
            throw new ClassNotFoundException( "Could not load requested class : " + name );
        }
};

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