在Tomcat 8上启动Spring应用程序时，java.lang.IllegalAccessError

Question

当我试图在Tomcat8上运行该项目时,遇到了一个非常奇怪的错误：

INFO o.s.web.context.contextLoader-根WebApplicationContext：初始化已启动。信息O.S.W.C.S.AnnotationConfigWebApplicationContext-刷新根WebApplicationContext：启动日期[Mon Jun 29 10:59:34 CET 2015]；上下文层次结构的根。信息O.S.W.C.S.AnnotationConfigWebApplicationContext-正在注册带批注的类：[class COM...]

错误o.s.web.Context.contextLoader-上下文初始化失败java.lang.IllegalAccesser错误：尝试访问方法org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingletonMutex（）ljava/lang/object；从类org.SpringFramework.Context.Event.AbstractApplicationEventMulticaster

全堆栈跟踪波纹管：

我的第一个想法是Spring版本有一些错误，但我找不到任何东西。这与我使用过几次的项目设置基本相同，唯一的区别是这是Java8项目。

项目是动态Web模块3.1。

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.1.6.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.ws</groupId>
        <artifactId>spring-ws-core</artifactId>
        <version>2.2.1.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.ws</groupId>
        <artifactId>spring-ws-test</artifactId>
        <version>2.2.1.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>wsdl4j</groupId>
        <artifactId>wsdl4j</artifactId>
        <version>1.6.3</version>
    </dependency>

    <dependency>
        <groupId>javax.validation</groupId>
        <artifactId>validation-api</artifactId>
        <version>1.1.0.Final</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>5.1.1.Final</version>
    </dependency>

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5</version>
    </dependency>


    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.1.6.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.1.6.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.1.3</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>javax.annotation</groupId>
        <artifactId>javax.annotation-api</artifactId>
        <version>1.2</version>
    </dependency>

    <dependency>
        <groupId>javax.xml</groupId>
        <artifactId>jaxb-api</artifactId>
        <version>2.1</version>
    </dependency>

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.1.6.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.4</version>
    </dependency>

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>jcl-over-slf4j</artifactId>
        <version>1.7.12</version>
    </dependency>
</dependencies>

Answer 1

问题是您混合了不同版本的Spring,这些版本是不兼容的。无论如何，您不应该混合来自任何框架（Spring,Hibernate,JSF等）的不同版本的JAR，因为这肯定会发生麻烦。

最好的方法是简单地使用Spring IO平台。

将以下内容添加到pom中

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>io.spring.platform</groupId>
            <artifactId>platform-bom</artifactId>
            <version>1.1.2.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>