IncompatibleClassChangeError

[Roshan Paiva]

Hi, 

I'm just configured and setup hibernate-memcached into my application running on jetty. When deploying my war in tomcat or jetty i get an IncompatibleClassChangeError and it seems like its coming from PersistenceExceptionTranslationPostProcessor. Would appreciate your thoughts on getting over this.

Environment:

hibernate: 3.6.1.Final

spring:3.0.5.RELEASE

hibernate-memcached: 1.3

Here's an extract from my applicationContext-dao.xml

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

       xmlns:context="http://www.springframework.org/schema/context"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd"

       default-lazy-init="true" default-autowire="byName">

    <bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>

    <!-- Hibernate SessionFactory -->

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

        <property name="dataSource" ref="dataSource"/>

        <property name="configLocation" value="classpath:hibernate.cfg.xml"/>

        <property name="hibernateProperties">

            <value>

                hibernate.dialect=${hibernate.dialect}

                hibernate.query.substitutions=true 'Y', false 'N'

                hibernate.cache.use_second_level_cache=true

                <!--hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider-->

                hibernate.cache.provider_class = com.googlecode.hibernate.memcached.MemcachedCacheProvider

                hibernate.cache.use_query_cache = true

                hibernate.memcached.servers = localhost:11211

                hibernate.memcached.connectionFactory = BinaryConnectionFactory

                hibernate.show_sql=false

            </value>

            <!-- Turn batching off for better error messages under PostgreSQL -->

            <!-- hibernate.jdbc.batch_size=0 -->

        </property>

    </bean>

    <!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) -->

    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">

        <property name="sessionFactory" ref="sessionFactory"/>

    </bean>

It works fine when i run the app as mvn:jetty-run. However, when i try to run the war (on tomcat or jetty mvn jetty:run-war) i get the following exception.

<excuse the long stack trace. I wanted to give you as much context as possible>

2012-09-21 15:38:41,613 [main] ERROR [] [ContextLoader] Context initialization failed 

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [applicationContext-dao.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext-dao.xml]: Invocation of init method failed; nested exception is java.lang.IncompatibleClassChangeError: Implementing class

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)

at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:710)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:410)

at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)

at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:764)

at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:406)

at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:756)

at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:242)

at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1213)

at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:699)

at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:454)

at org.mortbay.jetty.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:256)

at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)

at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:224)

at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:167)

at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)

at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:224)

at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)

at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:90)

at org.eclipse.jetty.server.Server.doStart(Server.java:263)

at org.mortbay.jetty.plugin.JettyServer.doStart(JettyServer.java:65)

at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)

at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:511)

at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:364)

at org.mortbay.jetty.plugin.JettyRunWarMojo.execute(JettyRunWarMojo.java:71)

at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)

at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)

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:84)

at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)

at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)

at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)

at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)

at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)

at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)

at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)

at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)

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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)

at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)

at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)

at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext-dao.xml]: Invocation of init method failed; nested exception is java.lang.IncompatibleClassChangeError: Implementing class

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

[Daniel Serodio]

I was having this problem too, and found that it was caused by a version conflict between "my" version of Hibernate and hibernate-memcached's version. I solved it by exclude'ing hibernate from hibernate-memcached:

        <dependency>

            <groupId>com.googlecode</groupId>

            <artifactId>hibernate-memcached</artifactId>

            <version>1.3</version>

            <exclusions>

                <exclusion>

                    <artifactId>hibernate</artifactId>

                    <groupId>org.hibernate</groupId>

                </exclusion>

            </exclusions>

        </dependency>

HTH,

Daniel Serodio