Estamos usando o Spring ORM 4.2.1.RELEASE para interagir com o Hibernate via JPA. Tudo funciona bem com o Hibernate 4.3.11.Final, mas quando tentamos atualizar para o Hibernate 5, ele quebra com um AbstractMethodError ao construir o SessionFactory.

De acordo com as notas de versão, o Spring 4.2.1 suporta o Hibernate 5. O exame da árvore de dependência do Maven não mostrou nenhuma versão duplicada ou obsoleta do Hibernate ou Spring. A linha específica relatada (https://github.com/hibernate/hibernate-orm/blob/master/hibernate-core/src/main/java/org/hibernate/internal/SessionFactoryImpl.java A linha 278) está iterando nos integradores do Hibernate, mas como não usamos nenhum, a lista de integradores deve estar logicamente vazia (e, portanto, não iterar).

Alguém sabe se isso é um bug (ou falta de suporte) no Spring, ou se estamos fazendo algo errado?

Extrair do log do aplicativo:

2015-09-08 13:17:45,452 [main] INFO  org.springframework.test.context.support.DefaultTestContextBootstrapper - Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@20f0461e, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@7e8b6c76, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@737df7e1, org.springframework.test.context.support.DirtiesContextTestExecutionListener@531d1003, org.springframework.test.context.transaction.TransactionalTestExecutionListener@19065f96, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@716d7daf]
2015-09-08 13:17:45,460 [main] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [dataContext.xml]
2015-09-08 13:17:45,689 [main] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [systemContext.xml]
2015-09-08 13:17:45,779 [main] INFO  org.springframework.context.support.GenericApplicationContext - Refreshing org.springframework.context.support.GenericApplicationContext@4b56a656: startup date [Tue Sep 08 13:17:45 AEST 2015]; root of context hierarchy
2015-09-08 13:17:45,846 [main] INFO  org.springframework.context.support.PropertySourcesPlaceholderConfigurer - Loading properties file from class path resource [application.properties]
2015-09-08 13:17:45,900 [MLog-Init-Reporter] INFO  com.mchange.v2.log.MLog - MLog clients using slf4j logging.
2015-09-08 13:17:45,921 [main] INFO  com.mchange.v2.c3p0.C3P0Registry - Initializing c3p0-0.9.5.1 [built 16-June-2015 00:06:36 -0700; debug? true; trace: 10]
2015-09-08 13:17:46,046 [main] INFO  org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean - Building JPA container EntityManagerFactory for persistence unit 'default'
2015-09-08 13:17:46,060 [main] INFO  org.hibernate.jpa.internal.util.LogHelper - HHH000204: Processing PersistenceUnitInfo [
    name: default
    ...]
2015-09-08 13:17:46,136 [main] INFO  org.hibernate.Version - HHH000412: Hibernate Core {5.0.1.Final}
2015-09-08 13:17:46,137 [main] INFO  org.hibernate.cfg.Environment - HHH000206: hibernate.properties not found
2015-09-08 13:17:46,138 [main] INFO  org.hibernate.cfg.Environment - HHH000021: Bytecode provider name : javassist
2015-09-08 13:17:46,166 [main] INFO  org.hibernate.annotations.common.Version - HCANN000001: Hibernate Commons Annotations {5.0.0.Final}
2015-09-08 13:17:46,274 [main] INFO  com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, contextClassLoaderSource -> caller, dataSourceName -> z8kfsx9b1bfny2k11h75wx|4aa092d5, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> org.hsqldb.jdbcDriver, extensions -> {}, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, forceSynchronousCheckins -> false, forceUseNamedDriverClass -> false, identityToken -> z8kfsx9b1bfny2k11h75wx|4aa092d5, idleConnectionTestPeriod -> 30, initialPoolSize -> 3, jdbcUrl -> jdbc:hsqldb:mem:testDB, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 15, maxStatements -> 0, maxStatementsPerConnection -> 0, minPoolSize -> 3, numHelperThreads -> 3, preferredTestQuery -> null, privilegeSpawnedThreads -> false, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> true, testConnectionOnCheckout -> true, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]
2015-09-08 13:17:46,396 [main] INFO  org.hibernate.dialect.Dialect - HHH000400: Using dialect: org.hibernate.dialect.HSQLDialect
2015-09-08 13:17:46,429 [main] INFO  org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl - HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
2015-09-08 13:17:46,592 [main] WARN  org.springframework.context.support.GenericApplicationContext - Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [dataContext.xml]: Invocation of init method failed; nested exception is java.lang.AbstractMethodError
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1045) ~[spring-context-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:824) ~[spring-context-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) [spring-context-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:125) [spring-test-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    ... rows deleted
Caused by: java.lang.AbstractMethodError
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:278) ~[hibernate-core-5.0.1.Final.jar:5.0.1.Final]
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444) ~[hibernate-core-5.0.1.Final.jar:5.0.1.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:802) ~[hibernate-entitymanager-5.0.1.Final.jar:5.0.1.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:343) ~[spring-orm-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318) ~[spring-orm-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE]
    ... 41 more

Extrair do contexto do Spring:

<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="jpaVendorAdapter" ref="jpaVendorAdapter"/>
    <property name="packagesToScan" value="au.gov.qld.ssq.cofa.domain"/>
    <property name="jpaPropertyMap">
        <map>
            <entry key="hibernate.dialect" value="${hibernate.dialect}"/>
            <entry key="hibernate.show_sql" value="${hibernate.show_sql}"/>
            <entry key="hibernate.hbm2ddl.auto" value="${hibernate.hbm2ddl.auto}"/>
        </map>
    </property>
</bean>