ClassNotFoundException when starting tomcat

Seb P picture Seb P · Dec 9, 2011 · Viewed 86k times · Source

I'm trying to make a REST web service.

My project looks like :

enter image description here

The traceback is :

8 déc. 2011 18:31:36 org.apache.catalina.core.AprLifecycleListener init
INFO: The Apache Tomcat Native library which allows optimal performance in production     environments was not found on the java.library.path: C:\Program Files\MyEclipse\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\bin;C:\Program Files\MyEclipse\Common\plugins\com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201109141806\tomcat\bin
8 déc. 2011 18:31:36 org.apache.coyote.http11.Http11Protocol init
INFO: Initialisation de Coyote HTTP/1.1 sur http-8080
8 déc. 2011 18:31:36 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 394 ms
8 déc. 2011 18:31:37 org.apache.catalina.core.StandardService start
INFO: Démarrage du service Catalina
8 déc. 2011 18:31:37 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.13
8 déc. 2011 18:31:37 org.apache.catalina.startup.HostConfig deployWAR
INFO: Déploiement de l'archive Test-0.0.1-SNAPSHOT.war de l'application web
8 déc. 2011 18:31:37 org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Documents and Settings\Naya\Workspaces\MyEclipse 10\.metadata\.me_tcat\webapps\Test-0.0.1-SNAPSHOT\WEB-INF\lib\javax.servlet-3.0.1.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
8 déc. 2011 18:31:37 org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Documents and Settings\Naya\Workspaces\MyEclipse 10\.metadata\.me_tcat\webapps\Test-0.0.1-SNAPSHOT\WEB-INF\lib\servlet-api-2.5.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
8 déc. 2011 18:31:38 org.apache.catalina.core.ApplicationContext log
INFO: La servlet Test JAX-RS REST Servlet est marqué comme indisponible
8 déc. 2011 18:31:38 org.apache.catalina.core.ApplicationContext log
GRAVE: Error loading WebappClassLoader
delegate: false
  repositories:
    /WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@19e8329
 com.sun.jersey.spi.container.servlet.ServletContainer
java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1083)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4042)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4348)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:825)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:714)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
    at org.apache.catalina.core.StandardService.start(StandardService.java:516)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

My web.xml :

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
  <display-name></display-name> 
  <servlet>
    <display-name>Test JAX-RS REST Servlet</display-name>
    <servlet-name>Test JAX-RS REST Servlet</servlet-name>
    <servlet-class>
        com.sun.jersey.spi.container.servlet.ServletContainer
    </servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Test JAX-RS REST Servlet</servlet-name>
    <url-pattern>/services/*</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

Can anyone help me ?

Answer

Diego picture Diego · Aug 1, 2012

Solution:

Only add the dependency in pom.xml:

 <dependency>
      <groupId>com.sun.jersey</groupId>
      <artifactId>jersey-servlet</artifactId>
      <version>1.13</version>
 </dependency>

Now your application will have the class com.sun.jersey.spi.container.servlet.ServletContainer

ps: Remember to check if the libraries are being sent to the tomcat deploy.

To check:

Right-click on your project -> Properties -> Deployment Assembler and make sure the Source tab contains Maven Dependecies.

Otherwise:

Click on button Add -> Java Build Path -> Maven Dependecies -> Finish.

Ready whenever you run the application all the libs will be imported in the deploy.

ps: Where the Maven project is updated, you must remake these steps.