Tomcat 8.0: java.lang.ClassNotFoundException: org.apache.coyote.UpgradeProtocol

[candrews]

Running Spring Boot 2.0.0.M6 on Tomcat 8.0 (I'm using 8.0.45, which is the version currently used by AWS Elastic Beanstalk), the follow exception occurs at startup preventing the application from starting. Note that this exception occurs regardless of the value of server.http2.enabled - there is no way (that I can figure out) to run Spring Boot 2.0.0.M6 on Tomcat < 8.5.

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tomcatServletWebServerFactory' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryAutoConfiguration$EmbeddedTomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory]: Factory method 'tomcatServletWebServerFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/coyote/UpgradeProtocol
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:583) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1249) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1098) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:756) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) ~[spring-context-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:122) ~[spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:751) ~[spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:387) ~[spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:155) [spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:135) [spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:87) [spring-boot-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172) [spring-web-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303) [catalina.jar:8.0.45]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) [catalina.jar:8.0.45]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:753) [catalina.jar:8.0.45]
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:729) [catalina.jar:8.0.45]
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) [catalina.jar:8.0.45]
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1129) [catalina.jar:8.0.45]
	at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1871) [catalina.jar:8.0.45]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_141]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_141]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_141]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_141]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_141]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory]: Factory method 'tomcatServletWebServerFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/coyote/UpgradeProtocol
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:186) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:575) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	... 31 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/apache/coyote/UpgradeProtocol
	at org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration$EmbeddedTomcat.tomcatServletWebServerFactory(ServletWebServerFactoryAutoConfiguration.java:93) ~[spring-boot-autoconfigure-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration$EmbeddedTomcat$$EnhancerBySpringCGLIB$$741ce4cb.CGLIB$tomcatServletWebServerFactory$0(<generated>) ~[spring-boot-autoconfigure-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration$EmbeddedTomcat$$EnhancerBySpringCGLIB$$741ce4cb$$FastClassBySpringCGLIB$$9a5a8a82.invoke(<generated>) ~[spring-boot-autoconfigure-2.0.0.M6.jar:2.0.0.M6]
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361) ~[spring-context-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	at org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration$EmbeddedTomcat$$EnhancerBySpringCGLIB$$741ce4cb.tomcatServletWebServerFactory(<generated>) ~[spring-boot-autoconfigure-2.0.0.M6.jar:2.0.0.M6]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_141]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_141]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_141]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_141]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:155) ~[spring-beans-5.0.1.RELEASE.jar:5.0.1.RELEASE]
	... 32 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.apache.coyote.UpgradeProtocol
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333) ~[catalina.jar:8.0.45]
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167) ~[catalina.jar:8.0.45]
	... 43 common frames omitted

[candrews]

@wilkinsona Do you have any suggestions as to how I can work around this issue with 2.0.0.M6?

[wilkinsona]

Excluding org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration via your @SpringBootApplication annotation's exclude attribute should do the trick

[MrBuddyCasino]

I have the same problem, @wilkinsona 's suggestion worked.

[arnonuem]

I am working with Tomcat 8.0.36 and have not seen this issue.
@candrews Which Tomcat 8 version do you use?