why am I getting "java.lang.ClassNotFoundException" error in my project

Question

I have no idea why this error is coming in my project.so you guys are my last chance:

In my project I am getting "java.lang.ClassNotFoundException" Exception.Can you tell me what is the reason behind it.

when I am trying to run this program I am getting this message"
  HTTP status 404
INSIDE the console I am getting this error

t would be REALLY appreciated if you could give me some hints...

Thanks a lot,

  SEVERE: Error configuring application listener of class org.apache.struts2.tiles.StrutsTilesListener
java.lang.ClassNotFoundException: org.apache.struts2.tiles.StrutsTilesListener
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(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Nov 24, 2012 4:47:54 PM org.apache.catalina.core.StandardContext listenerStart
 SEVERE: Error configuring application listener of class    com.olec.listener.HibernateListener
java.lang.ClassNotFoundException: com.olec.listener.HibernateListener
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(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
  Nov 24, 2012 4:47:54 PM org.apache.catalina.core.StandardContext listenerStart
 SEVERE: Skipped installing application listeners due to previous error(s)
  Nov 24, 2012 4:47:54 PM org.apache.catalina.core.StandardContext startInternal
   SEVERE: Error listenerStart
Nov 24, 2012 4:47:54 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/OLEC] startup failed due to previous errors
Nov 24, 2012 4:47:54 PM org.apache.catalina.loader.WebappClassLoader    clearReferencesJdbc
    SEVERE: The web application [/OLEC] registered the JDBC driver                                                                                                                                                 [com.mysql.jdbc.Driver]    but failed to unregister it when the web application   was             stopped. To prevent a                                                          memory leak, the JDBC Driver has been  unregistered.
Nov 24, 2012 4:47:54 PM org.apache.coyote.AbstractProtocolHandler start
: Starting ProtocolHandler ["http-bio-8080"]
Nov 24, 2012 4:47:54 PM org.apache.coyote.AbstractProtocolHandler start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Nov 24, 2012 4:47:54 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 2014 ms

if you are using tiles and struts2, you should add struts2-tiles-plugin to your classpath — Jaiwo99
– Jaiwo99, Commented Nov 24, 2012 at 20:11

Gajotres · Accepted Answer · 2012-11-24 12:39:49Z

1

What IDE are you using? In case of Eclipse or Netbeans got to the project properties and add missing jar into the class path.

According to your exception you should add struts2-tiles-plugin-2.0.12.jar or any other version of that jar.

Also hibernate-annotations.jar , better check if your class path is correct all together.

answered Nov 24, 2012 at 12:39

Gajotres

57.3k16 gold badges106 silver badges132 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

sorencito · Accepted Answer · 2012-11-25 10:21:21Z

0

com.olec.listener.HibernateListener is missing. I have found no jar containing that class, but you should add it to your app or its classpath.

answered Nov 25, 2012 at 10:21

sorencito

2,6251 gold badge23 silver badges21 bronze badges

Collectives™ on Stack Overflow

why am I getting "java.lang.ClassNotFoundException" error in my project

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related