ServletContextListener SEVERE: error setting the listener for class marktest.Config applications

My Java servlet seems to complain that it cannot find the file that is included in the package (marktest). Im uses Eclipse (Indigo) for development and Tomcat7.

Here is the error:

SEVERE: Error configuring application listener of class marktest.Config java.lang.ClassNotFoundException: marktest.Config at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4660) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:679) 

Here is Config.java, which contains a class that implements ServletContextListener, which, he said, cannot be found in the error:

 package marktest; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; public class Config implements ServletContextListener { private ExecutorService executor; @Override public void contextInitialized(ServletContextEvent event) { System.out.println("########################## ServletContextListener started ###############################"); } @Override public void contextDestroyed(ServletContextEvent event) { } } 

and here is web.xml

 <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>de.vogella.jersey.first</display-name> <servlet> <servlet-name>Jersey REST Service</servlet-name> <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> <init-param> <param-name>com.sun.jersey.config.property.packages</param-name> <param-value>marktest</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Jersey REST Service</servlet-name> <url-pattern>/rest/*</url-pattern> </servlet-mapping> <listener> <listener-class>marktest.Config</listener-class> </listener> </web-app> 

I am very fixated even after a lot of googling. Thanks in advance for your help.

Mark

---- Edit ----

Below is the full console log

 10-Jan-2013 15:45:18 org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:nlpServer' did not find a matching property. 10-Jan-2013 15:45:18 org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] 10-Jan-2013 15:45:18 org.apache.catalina.startup.Catalina load INFO: Initialization processed in 661 ms 10-Jan-2013 15:45:18 org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina 10-Jan-2013 15:45:18 org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.21 ########################## ServletContextListener started ############################### 10-Jan-2013 15:45:19 org.apache.catalina.util.SessionIdGenerator createSecureRandom INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [1,052] milliseconds. 10-Jan-2013 15:45:19 com.sun.jersey.api.core.PackagesResourceConfig init INFO: Scanning for root resource and provider classes in the packages: marktest 10-Jan-2013 15:45:19 com.sun.jersey.api.core.ScanningResourceConfig logClasses INFO: Root resource classes found: class marktest.hello 10-Jan-2013 15:45:19 com.sun.jersey.api.core.ScanningResourceConfig init INFO: No provider classes found. 10-Jan-2013 15:45:19 com.sun.jersey.server.impl.application.WebApplicationImpl _initiate INFO: Initiating Jersey application, version 'Jersey: 1.16 11/28/2012 02:09 PM' 10-Jan-2013 15:45:20 org.apache.catalina.core.StandardContext listenerStart SEVERE: Error configuring application listener of class marktest.Config java.lang.ClassNotFoundException: marktest.Config at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4660) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:679) 10-Jan-2013 15:45:20 org.apache.catalina.core.StandardContext listenerStart SEVERE: Skipped installing application listeners due to previous error(s) 10-Jan-2013 15:45:20 org.apache.catalina.core.StandardContext startInternal SEVERE: Error listenerStart 10-Jan-2013 15:45:20 org.apache.catalina.core.StandardContext startInternal SEVERE: Context [] startup failed due to previous errors 10-Jan-2013 15:45:20 org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["http-bio-8080"] 10-Jan-2013 15:45:20 org.apache.catalina.startup.Catalina start INFO: Server startup in 2538 ms 10-Jan-2013 15:45:24 org.apache.catalina.core.StandardServer await INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instance. 10-Jan-2013 15:45:24 org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["http-bio-8080"] 10-Jan-2013 15:45:25 org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina 10-Jan-2013 15:45:25 org.apache.catalina.util.LifecycleBase stop INFO: The stop() method was called on component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]] after stop() had already been called. The second call will be ignored. 10-Jan-2013 15:45:25 org.apache.coyote.AbstractProtocol stop INFO: Stopping ProtocolHandler ["http-bio-8080"] 10-Jan-2013 15:45:25 org.apache.coyote.AbstractProtocol destroy INFO: Destroying ProtocolHandler ["http-bio-8080"] 
+8
java web-services tomcat jersey tomcat7
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3 answers

It looks like your classes were not hosted correctly in Tomcat WTP (clear / publish again).

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This question can be closed, it turned out that the eclipse was a mistake and did not publish my changes.

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will delete the library source or move to the build path. make sure you don’t have a missing library in the build path> Libraries.

clean the project and run tomcat again. This will help.

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