ClassNotFoundException while starting the Tomcat 7 Server in MyEclipse

I am using MyEclipse 9 and Tomcat7.0 . I have taken latest code and deployed in Tomcat 7 and started the server. Immediately i got an error log as mentioned below.

    INFO: The listener "org.apache.myfaces.webapp.StartupServletContextListener" is already configured for this context. The duplicate definition has been ignored.
Jan 10, 2014 5:53:40 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class com.aap.apweb.servlet.APServletContextListener
java.lang.ClassNotFoundException: com.aap.apweb.servlet.APServletContextListener
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    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:4537)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5097)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5092)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Jan 10, 2014 5:53:40 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class com.aap.apweb.servlet.APHTTPSessionListener
java.lang.ClassNotFoundException: com.aap.apweb.servlet.APHTTPSessionListener
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    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:4537)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5097)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5092)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Jan 10, 2014 5:53:40 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)
Jan 10, 2014 5:53:40 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Jan 10, 2014 5:53:40 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/apweb] startup failed due to previous errors
Jan 10, 2014 5:53:41 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/apweb] registered the JDBC driver [net.sourceforge.jtds.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Jan 10, 2014 5:53:41 PM org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler ["http-apr-8080"]
Jan 10, 2014 5:53:41 PM org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler ["ajp-apr-8009"]
Jan 10, 2014 5:53:41 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 13243 ms

I think the jars path has to be set. But i am not able to find it.

Solution

As per this line from the log:

The web application [/apweb] registered the JDBC driver [net.sourceforge.jtds.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

I have added db2 jdbc 1.6 jars(db2jcc4.jar and db2jcc4_license_cisuz.jar)to my project build path. These jars solved my problem while restarting the server. It started without any issue.

Thanks for all the geeks to responding me.