如何解决Hibernate 5中的AbstractMethodError？

Question

我正在尝试使用tomcat 7中的Java EE中的hibernate 5，我收到此错误：

java.lang.AbstractMethodError
org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:278)
org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444)
org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:802)
org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58)
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
controller.dao.GenericDAO.<clinit>(GenericDAO.java:28)
com.mycompany.mazkrest.UsuarioResource.login(UsuarioResource.java:89)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:483)
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:309)
org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
org.glassfish.jersey.internal.Errors.process(Errors.java:315)
org.glassfish.jersey.internal.Errors.process(Errors.java:297)
org.glassfish.jersey.internal.Errors.process(Errors.java:267)
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:292)
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1139)
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:460)
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:386)
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:334)
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

我正在使用JPA 2.1，我删除了任何旧jpa版本的jar。

这是我在pom.xml中的依赖项：

<dependencies>
    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet-core</artifactId>
        <!-- <version>${jersey.version}</version>-->
        <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
        <!-- artifactId>jersey-container-servlet</artifactId -->
    </dependency>

    <dependency>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.6</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.36</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.6.1</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.6.1</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-json-provider</artifactId>
        <version>2.6.1</version>
    </dependency>

    <dependency>
        <groupId>com.voodoodyne.jackson.jsog</groupId>
        <artifactId>jackson-jsog</artifactId>
        <version>1.1</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.6.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-json-jackson</artifactId>
        <!--  <version>${jersey.version}</version>-->
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-search</artifactId>
        <version>5.3.0.Final</version>
    </dependency>

    <dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-core</artifactId>
        <version>5.3.0</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>5.0.1.Final</version>
    </dependency>

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-web-api</artifactId>
        <version>7.0</version>
        <type>jar</type>
    </dependency>
</dependencies>

当我执行第二次抛出异常的代码时，我得到一个NoDefClassFoundError。

hibernate似乎在日志中启动，但不是创建实体管理器。

怎么解决这个？

Answer 1

当您用于编译的jar与服务器运行代码时引用的jar之间不兼容时，抛出AbstractMethodError。

http://docs.oracle.com/javase/7/docs/api/java/lang/AbstractMethodError.html

“当应用程序尝试调用抽象方法时抛出。通常，编译器会捕获此错误;如果自上次编译当前正在执行的方法以来某些类的定义发生了不兼容的更改，则此错误只能在运行时发生。

这可能是由于hibernate-search和hibernate-entity-manager的版本

hibernate搜索似乎正在使用hibernate-commons-annotations 4.0.5 final

http://mvnrepository.com/artifact/org.hibernate/hibernate-search-engine/5.3.0.Final

而

Hibernate实体管理器似乎正在使用hibernate-commons-annotation-5.0.0.Final

http://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager/5.0.1.Final

检查eclipse中pom.xml的Dependency Hierarchy选项卡，找出正在使用的jar版本。 用于排除不兼容的版本。 通常这是由pom自动完成的。 您还可以检查WEB-INF / lib文件夹以查看正在下载的jar文件。

我也看到你正在使用这个罐子。 如果你使用tomcat 7更好地使用它而使其范围“提供”，因为在运行时web应用程序引用tomcat servlet api jar。

<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-servlet-api</artifactId>
    <version>7.0.21</version>
    <scope>provided</scope>
    </dependency>