SEVERE: Exception sending context initialized event to listener instance of class org.zkoss.zk.ui.http.HttpSessionListener

asked 2014-07-28 11:27:04 +0800

Nikhil2014
1

Hi, I am getting following exception at the time of starting Tomcat, and thus my application having ZK Calendar cannot be started. Any help highly appreciated.

SEVERE: Exception sending context initialized event to listener instance of class org.zkoss.zk.ui.http.HttpSessionListener
java.lang.NoClassDefFoundError: org/zkforge/apache/commons/el/ExpressionEvaluatorImpl
    at org.zkoss.xel.el.ELFactory.<init>(ELFactory.java:44)
    at org.zkoss.xel.Expressions$2.newFactory(Expressions.java:128)
    at org.zkoss.xel.Expressions.newDefautFactory(Expressions.java:108)
    at org.zkoss.xel.Expressions.newExpressionFactory(Expressions.java:105)
    at org.zkoss.xel.Expressions.newExpressionFactory(Expressions.java:73)
    at org.zkoss.util.resource.impl.LabelLoader.<init>(LabelLoader.java:94)
    at org.zkoss.util.resource.Labels.<clinit>(Labels.java:35)
    at org.zkoss.zk.ui.http.WebManager.<init>(WebManager.java:201)
    at org.zkoss.zk.ui.http.HttpSessionListener23.contextInitialized(HttpSessionListener23.java:140)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1581)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.zkforge.apache.commons.el.ExpressionEvaluatorImpl
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546)
    ... 22 more

I think any JAR file is missing or needs to be added to build-path. Please give me the JAR name.

Is there any link where I can find the JAR files required to run my ZK calendar application? It will be great if I can get the listing of JAR files version wise to avoid any conflict.

Regards, Nikhil