外部Tomcat部署Spring Boot WAR启动失败：spring-ws-core冲突

将Spring Boot Web应用打包为WAR部署到运行有多个Spring/非Spring Boot应用的外部Tomcat服务器，服务器通过catalina.properties的common.loader配置加载共享位置的依赖包。启动该Spring Boot应用时出现如下CGLIB相关异常，排查确认是共享的spring-ws-core.jar导致（本应用无需此依赖），但其他应用依赖该Jar无法删除，需实现让特定应用不加载这个共享Jar。

错误日志 #

java.lang.IllegalStateException: Error starting child
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:686)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:658)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:661)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1023)
        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1910)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
        at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:824)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1617)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:318)
        at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:114)
        at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:402)
        at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:345)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:893)
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:794)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:171)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1332)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1322)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
        at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:866)
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:248)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:171)
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:433)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:171)
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:921)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:171)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:772)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:347)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:478)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/myservice]]
        at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:419)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:186)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:683)
        ... 37 more
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.NoSuchMethodException-->org.springframework.ws.config.annotation.DelegatingWsConfiguration$$EnhancerBySpringCGLIB$$47de5974.CGLIB$SET_THREAD_CALLBACKS([Lorg.springframework.cglib.proxy.Callback;)
        at org.springframework.cglib.proxy.Enhancer$EnhancerFactoryData.<init>(Enhancer.java:513)
        at org.springframework.cglib.proxy.Enhancer.wrapCachedClass(Enhancer.java:806)
        at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:111)
        at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108)
        at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61)
        at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34)
        at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134)
        at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319)
        at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572)
        at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419)
        at org.springframework.context.annotation.ConfigurationClassEnhancer.createClass(ConfigurationClassEnhancer.java:137)
        at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:109)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:447)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:268)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:325)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:147)
        at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:748)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:175)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:155)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:97)
        at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:174)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4904)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:171)
        ... 38 more
Caused by: java.lang.NoSuchMethodException: org.springframework.ws.config.annotation.DelegatingWsConfiguration$$EnhancerBySpringCGLIB$$47de5974.CGLIB$SET_THREAD_CALLBACKS([Lorg.springframework.cglib.proxy.Callback;)
        at java.lang.Class.getDeclaredMethod(Class.java:2130)
        at org.springframework.cglib.proxy.Enhancer.getCallbacksSetter(Enhancer.java:912)
        at org.springframework.cglib.proxy.Enhancer.access$000(Enhancer.java:93)
        at org.springframework.cglib.proxy.Enhancer$EnhancerFactoryData.<init>(Enhancer.java:502)
        ... 67 more

解决方案 #

1. 配置Tomcat上下文排除指定Jar #

为该Spring Boot应用创建单独的上下文配置文件：

• 方式一：在应用WAR包的META-INF目录下创建context.xml
• 方式二：在Tomcat服务器的conf/Catalina/localhost/目录下创建[应用名].xml（比如应用路径是/myservice，则创建myservice.xml）

在配置文件中添加Jar扫描过滤规则，跳过spring-ws-core相关Jar：

<Context>
    <JarScanner>
        <JarScanFilter defaultPluggabilityScan="true"
                       tldSkip="spring-ws-core*.jar"
                       pluggabilitySkip="spring-ws-core*.jar"/>
    </JarScanner>
</Context>

Tomcat加载该应用时会跳过指定Jar，不会加载其中的类和配置。

2. 显式排除Spring Boot自动配置类 #

直接在Spring Boot启动类上排除Web Services相关的自动配置类，避免Spring初始化不必要的组件：

@SpringBootApplication(exclude = {WebServicesAutoConfiguration.class})
public class YourApplication extends SpringBootServletInitializer {
    // 启动类逻辑
}

若使用较旧版本的Spring Boot，可根据实际依赖调整排除的配置类（如WsConfigurationSupport）。

3. 调整Tomcat类加载器隔离策略 #

修改Tomcat的类加载配置，将共享依赖与目标应用隔离：

1. 修改catalina.properties，把spring-ws-core.jar从common.loader移到shared.loader：

   shared.loader=${catalina.base}/shared/lib/spring-ws-core*.jar,...
   

2. 在应用的context.xml中指定使用独立的Webapp类加载器，不加载shared目录的依赖：

   <Context loader="webapp">
       <!-- 其他上下文配置 -->
   </Context>
   

该应用将仅加载自身WEB-INF/lib下的依赖，完全隔离共享的spring-ws-core.jar。

内容的提问来源于stack exchange，提问作者DpkTheJavaCoder