[Servlet Basics I - Lab] HTTP Status 500 - Error instantiating servlet class servlets.ResponseServlet

[Pao]

Hi,

I'm having problem with the Servlet Basics I - Lab when I'm trying to run it in eclipse IDE I encountered HTTP Status 500 - Error instantiating servlet class servlets.ResponseServlet please see the logs below. I'm not sure what's the problem, I also attached an image of the Deployment Assembly and Build Path of the project.

May 24, 2013 10:37:35 AM org.apache.catalina.core.AprLifecycleListener init

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Diskeeper Corporation\ExpressCache\;C:\Program Files\Java\jdk1.7.0_11\bin;C:\Program Files (x86)\Git\cmd;C:\Program Files (x86)\Git\bin;C:\wamp\bin\php\php5.3.13\;C:\Program Files (x86)\QuickTime\QTSystem\;.

May 24, 2013 10:37:35 AM org.apache.tomcat.util.digester.SetPropertiesRule begin

WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:hello2' did not find a matching property.

May 24, 2013 10:37:35 AM org.apache.tomcat.util.digester.SetPropertiesRule begin

WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:FirstWebApp' did not find a matching property.

May 24, 2013 10:37:35 AM org.apache.coyote.AbstractProtocol init

INFO: Initializing ProtocolHandler ["http-bio-8080"]

May 24, 2013 10:37:35 AM org.apache.coyote.AbstractProtocol init

INFO: Initializing ProtocolHandler ["ajp-bio-8009"]

May 24, 2013 10:37:35 AM org.apache.catalina.startup.Catalina load

INFO: Initialization processed in 844 ms

May 24, 2013 10:37:35 AM org.apache.catalina.core.StandardService startInternal

INFO: Starting service Catalina

May 24, 2013 10:37:35 AM org.apache.catalina.core.StandardEngine startInternal

INFO: Starting Servlet Engine: Apache Tomcat/7.0.40

May 24, 2013 10:37:36 AM org.apache.coyote.AbstractProtocol start

INFO: Starting ProtocolHandler ["http-bio-8080"]

May 24, 2013 10:37:36 AM org.apache.coyote.AbstractProtocol start

INFO: Starting ProtocolHandler ["ajp-bio-8009"]

May 24, 2013 10:37:36 AM org.apache.catalina.startup.Catalina start

INFO: Server startup in 546 ms

May 24, 2013 10:37:37 AM org.apache.catalina.core.ApplicationContext log

INFO: Marking servlet ResponseServlet as unavailable

May 24, 2013 10:37:37 AM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Allocate exception for servlet ResponseServlet

java.lang.ClassNotFoundException: servlets.ResponseServlet

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)

at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)

at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)

at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)

at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1144)

at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:865)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:136)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Deployment Assembly:

Build Path:

Thanks,

Pao

[Sang Shin]

I assume you are building it with Maven project.  Did you try "Run As->Maven Install"?

-S

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[nikhil nishchal]

Try:

mvn clean install     

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[Pao]

Its already working, I just removed the project and import it again as a Maven Project. Run the project as Maven Install, then I added a new maven build and set the goal to tomcat:run. I can now access the project through the browser.

Thanks everyone!