Spring boot Starter Error

Camunda 7 Topics Discussion & Questions
1

POM.XML

<?xml version="1.0" encoding="UTF-8"?> 4.0.0

com.camunda.demo
Corus
0.0.1-SNAPSHOT

war

Camunda BPM Process Application
A Process Application for Camunda BPM. [The project has been generated by the Maven archetype ‘camunda-archetype-servlet-war-7.11.1’]

7.11.0 1.8 1.8 UTF-8 false org.camunda.bpm camunda-bom ${camunda.version} import pom org.camunda.bpm camunda-engine provided org.camunda.bpm.extension camunda-bpm-assert 1.2 test 
<!-- Required to use Spin dataformat support in unit tests -->
<dependency>
  <groupId>org.camunda.spin</groupId>
  <artifactId>camunda-spin-dataformat-all</artifactId>
  <scope>test</scope>
</dependency>
<dependency>
  <groupId>org.camunda.bpm</groupId>
  <artifactId>camunda-engine-plugin-spin</artifactId>
  <scope>test</scope>
</dependency>

<!-- Required to use Templates in unit tests -->
<dependency>
  <groupId>org.camunda.template-engines</groupId>
  <artifactId>camunda-template-engines-freemarker</artifactId>
  <scope>test</scope>
</dependency>
<dependency>
  <groupId>org.camunda.template-engines</groupId>
  <artifactId>camunda-template-engines-velocity</artifactId>
  <scope>test</scope>
</dependency>

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

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

<dependency>
  <!-- Needed for InMemoryH2Test -->
  <groupId>com.h2database</groupId>
  <artifactId>h2</artifactId>
  <version>1.4.197</version>
  <scope>test</scope>
</dependency>

<dependency>
  <!-- Used to generate test coverage reports, see https://github.com/camunda/camunda-consulting/tree/master/snippets/camunda-bpm-process-test-coverage -->
  <groupId>org.camunda.bpm.extension</groupId>
  <artifactId>camunda-bpm-process-test-coverage</artifactId>
  <version>0.3.2</version>
  <scope>test</scope>
</dependency>

<dependency>
  <!-- use logback as logger -->
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-classic</artifactId>
  <version>1.1.3</version>
  <scope>test</scope>
</dependency>

<dependency>
  <groupId>org.slf4j</groupId>
  <!-- apache commons logging => slf4j -->
  <artifactId>jcl-over-slf4j</artifactId>
  <version>1.7.25</version>
  <scope>test</scope>
</dependency>

<dependency>
  <!--  java util logging => slf4j -->
  <groupId>org.slf4j</groupId>
  <artifactId>jul-to-slf4j</artifactId>
  <version>1.7.25</version>
  <scope>test</scope>
</dependency>

<!-- Add your own dependencies here, if in compile scope, they are added to the war -->
org.springframework.boot spring-boot-starter-web 2.2.5.RELEASE org.camunda.bpm.springboot camunda-bpm-spring-boot-starter 3.2.9 org.camunda.bpm.springboot camunda-bpm-spring-boot-starter-rest 3.2.9 camunda-bpm-nexus Camunda Maven Repository https://app.camunda.com/nexus/content/groups/public ${project.artifactId} org.apache.maven.plugins maven-antrun-plugin <!-- Tomcat Maven Plugin 
  Deploy to Tomcat using:
  mvn clean tomcat7:deploy

  Redeploy:
  mvn clean tomcat7:redeploy

  Undeploy:
  mvn tomcat7:undeploy

       To use this plugin, add these lines to your tomcat-users.xml: (inside the <tomcat-users>-tag)
       <role rolename="manager-script"/>
       <user username="admin" password="admin" roles="manager-script"/>

   -->
  <plugin>
    <groupId>org.apache.tomcat.maven</groupId>
    <artifactId>tomcat7-maven-plugin</artifactId>
    <version>2.2</version>
    <configuration>
      <url>http://localhost:8080/manager/text</url>
      <username>admin</username>
      <password>admin</password>
    </configuration>
  </plugin>
  <plugin>
    <!-- Deploy to JBoss AS7: mvn clean jboss-as:deploy See also: https://docs.jboss.org/jbossas/7/plugins/maven/latest/examples/deployment-example.html -->
    <groupId>org.jboss.as.plugins</groupId>
    <artifactId>jboss-as-maven-plugin</artifactId>
    <version>7.9.Final</version>
  </plugin>
  <plugin>
    <!-- Deploy to Wildfly: mvn clean wildfly:deploy See also: https://docs.jboss.org/wildfly/plugins/maven/latest/examples/deployment-example.html -->
    <groupId>org.wildfly.plugins</groupId>
    <artifactId>wildfly-maven-plugin</artifactId>
    <version>1.2.1.Final</version>
  </plugin>
</plugins>

ERROR:

03-Mar-2020 17:43:48.361 GRAVE [main] org.apache.catalina.core.StandardContext.startInternal Error during ServletContainerInitializer processing
javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:158)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1849)
at java.util.concurrent.Executors$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:773)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
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:909)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:932)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
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:344)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
Caused by: java.lang.NoSuchMethodError: org.springframework.util.ReflectionUtils.accessibleConstructor(Ljava/lang/Class;[Ljava/lang/Class;)Ljava/lang/reflect/Constructor;
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:155)
… 40 more

2

Same problem …I am facing , I created Spring Boot project using https://start.camunda.com/.
Attaching pom.xml

Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.camunda.bpm.spring.boot.starter.rest.CamundaBpmRestJerseyAutoConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@73d16e93]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:477) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:355) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:411) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.lambda$getTypeForFactoryMethod$2(AbstractAutowireCapableBeanFactory.java:743) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_171]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:742) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:681) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:649) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1605) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:520) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:491) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:230) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:223) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:213) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:167) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:117) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
… 17 common frames omitted
Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContextListener
at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_171]
at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_171]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_171]
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_171]
at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[na:1.8.0_171]
at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[na:1.8.0_171]
at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[na:1.8.0_171]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_171]
at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[na:1.8.0_171]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_171]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_171]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_171]
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_171]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_171]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_171]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:459) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
… 33 common frames omitted[pom.xml (1.3 KB) ](http://)

3

I am facing same issue now. I have an existing spring boot application, in which I added camunda dependencies to integrate it with camunda. I am facing the above error when trying to run the application. PS: mvn clean install -DskipTests was successfull. Please let me know how did you resolve the issue.

4