AbstractMethodError when deploying Spring + Hibernate + JPA2 as a WAR

[petrp]

Hi,

we have a web application that uses Spring 3, Hibernate 3.5 and and JPA2 and is managed using Maven. When running it through Maven (for example mvn jetty:run), it works perfectly. But strangely, when packaged as a WAR it fails to start.

I created a minimal web application to demonstrate the problem. It actually contains no executable code, it just configures a memory database, Hibernate, JPA and Spring's Dispatcher servlet. When started within maven as mvn jetty:run, and also mvn tomcat:run, it starts as expected. However, when packaged as a WAR and deployed, it fails to start with this exception:

Caused by: java.lang.AbstractMethodError: org.springframework.orm.jpa.persistenceunit.SpringPersistenceUnitInfo.getSharedCacheMode()Ljavax/persistence/SharedCacheMode;
	at org.hibernate.ejb.util.LogHelper.logPersistenceUnitInfo(LogHelper.java:39)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:509)
	at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:72)
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:218)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:251)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
	... 42 more

The problem can be also demonstrated by running mvn tomcat:run-war.

I'm attaching the demonstration application.

Any idea what is causing the problem and how to solve it? I've been looking for a solution for several hours already, but without success. Presumably it is somehow related to SPR-6408 Add full support for JPA 2.0 PersistenceUnitInfo and SPR-6705 Spring 3.0 not compatible with Hibernate 3.5 beta3. In class org.springframework.orm.jpa.persistenceunit.Defaul tPersistenceUnitManager a presence of JPA2 is checked and if present, the instance of PersistenceUnitInfo is wrapped into a proxy that adds JPA2 specific method. But it looks like the solution is not perfect and in my case it fails.

Thanks for help,
Petr

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PS: I'm attaching the important sources for convenience:

pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.example</groupId>
  <artifactId>jpa2</artifactId>
  <packaging>war</packaging>
  <name>JPA2 + Spring problem example</name>
  <version>1.0-SNAPSHOT</version>

  <properties>
    <hibernate.version>3.5.1-Final</hibernate.version>
    <spring.version>3.0.5.RELEASE</spring.version>
    <logback.version>0.9.27</logback.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <!-- ================================================ -->
  <!-- DEPENDENCIES                                     -->
  <!-- ================================================ -->
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jpa</artifactId>
      <version>2.0.8</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-entitymanager</artifactId>
      <version>${hibernate.version}</version>
      <exclusions>
	<exclusion>
	  <groupId>org.slf4j</groupId>
	  <artifactId>slf4j-api</artifactId>
	</exclusion>
      </exclusions>
    </dependency>

    <!-- Logging -->
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>${logback.version}</version>
    </dependency>

    <!-- Embedded database -->
    <dependency>
      <groupId>org.hsqldb</groupId>
      <artifactId>hsqldb</artifactId>
      <version>2.0.0</version>
    </dependency>
  </dependencies>


  <!-- ================================================ -->
  <!-- BUILD                                            -->
  <!-- ================================================ -->
  <build>
    <plugins>
      <!-- JETTY -->
      <plugin>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>maven-jetty-plugin</artifactId>
        <version>6.1.26</version>
        <dependencies>
          <dependency>
            <groupId>org.mortbay.jetty</groupId>
            <artifactId>jetty-plus</artifactId>
            <version>6.1.16</version>
          </dependency>
        </dependencies>
        <configuration>
          <contextPath>/</contextPath>
        </configuration>
      </plugin>

      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>tomcat-maven-plugin</artifactId>
        <version>1.1</version>
        <dependencies>
        </dependencies>
      </plugin>
    </plugins>
  </build>

  <!-- ================================================ -->
  <!--            Repository Configuration              -->
  <!-- ================================================ -->

  <repositories>
    <repository>
      <id>spring-ext</id>
      <name>Spring External Dependencies Repository</name>
      <url>
	https://springframework.svn.sourceforge.net/svnroot/springframework/repos/repo-ext/
      </url>
    </repository>
    <!-- pro Hibernate: -->
    <repository>
      <id>jboss</id>
      <name>JBoss Maven2 Repository</name>
      <url>http://repository.jboss.org/maven2/</url>
    </repository>
  </repositories>
</project>

Spring configuration (context-main.xml):

<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  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-3.0.xsd
  http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
  http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
  http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
  ">

  <bean id="dataSource" class="org.hsqldb.jdbc.JDBCDataSource">
    <property name="database" value="jdbc:hsqldb:mem:playground" />
    <property name="user" value="sa" />
    <property name="password" value="" />
  </bean>

  <bean name="persistenceUnitManager"
    class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
    <property name="defaultDataSource" ref="dataSource" />
  </bean>

  <bean name="hibernateJpaVendorAdapter"
    class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
    <property name="generateDdl" value="true" />
  </bean>

  <bean id="entityManagerFactory"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceUnitName" value="default" />
    <property name="persistenceUnitManager" ref="persistenceUnitManager"/>
    <property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter"/>
  </bean>
</beans>