Unable to start embedded Tomcat NoClassDefFoundError DispatcherServletPath

Question

My 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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

<groupId>com.qroom</groupId>
<artifactId>qroom</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>qroom</name>
<description>qRoom Server</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.4.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
    <spring-cloud.version>Finchley.SR1</spring-cloud.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-autoconfigure</artifactId>
        <version>2.0.2.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.3.5.Final</version>
    </dependency>

    <dependency>
        <groupId>org.xerial</groupId>
        <artifactId>sqlite-jdbc</artifactId>
        <version>3.23.1</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-oauth2</artifactId>
    </dependency>
</dependencies>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
</project>

When I'm starting my app, I'm getting following error:

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at com.qroom.QroomApplication.main(QroomApplication.java:10) [classes/:na] Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:126) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.(TomcatWebServer.java:86) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:413) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] ... 8 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'servletEndpointRegistrar' defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/autoconfigure/web/servlet/DispatcherServletPath at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:226) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:214) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:91) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.(ServletContextInitializerBeans.java:80) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:250) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:237) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:54) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5245) ~[tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1421) ~[tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1411) ~[tomcat-embed-core-8.5.32.jar:8.5.32] at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_131] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_131] Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/autoconfigure/web/servlet/DispatcherServletPath at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] ... 23 common frames omitted Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/autoconfigure/web/servlet/DispatcherServletPath at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.servletEndpointRegistrar(ServletEndpointManagementContextConfiguration.java:71) ~[spring-boot-actuator-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$a6542fda.CGLIB$servletEndpointRegistrar$0() ~[spring-boot-actuator-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$a6542fda$$FastClassBySpringCGLIB$$dc5ad488.invoke() ~[spring-boot-actuator-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$a6542fda.servletEndpointRegistrar() ~[spring-boot-actuator-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE] ... 24 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.boot.autoconfigure.web.servlet.DispatcherServletPath at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_131] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_131] ... 35 common frames omitted

nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/autoconfigure/web/servlet/DispatcherServletPath


I found, that the problem is in spring-cloud-starter-oauth2 dependency. Everything works fine if I remove it. How can I fix this problem?

Answer 1

Maven can not resolve your dependency without version if you don't use dependencyManagement. Add version tag for org.springframework.cloud

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-oauth2</artifactId>
    <version>2.0.0.RELEASE</version>
</dependency>

Answer 2

M. Deinum's comment helped me to solve the problem

For starters stop mixing versions (2.0.4 and 2.0.2) of the same framework. To override the hibernate version add 5.3.5.Final to the element and remove the hibernate dependency. NOTE: DispatcherServletPath was added in Spring Boot 2.0.4 so probably your version mismatch is the root cause of this issue