title: java.lang.ExceptionInInitializerError in Hibernate caused by java.lang.ClassNotFoundException on org.dom4j.DocumentException
body: <p>i am new on Hibernate and JSF and try a tutorial. I do the same things from the tutorial, but i get an error when i start my Project, that should save my data on the database with hibernate, and i use jsf therefore (iam use netbeans)</p>
  
  <p>here are the error</p>
  
  <pre><code>    javax.faces.el.EvaluationException: java.lang.ExceptionInInitializerError
      at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
      at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
      at javax.faces.component.UICommand.broadcast(UICommand.java:315)
      at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
      at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
      at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
      at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
      at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
      at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
      at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
      at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
      at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
      at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
      at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
      at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
      at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
      at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
      at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
      at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
      at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
      at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
      at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
      at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
      at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
      at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
      at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
      at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
      at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
      at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
      at java.lang.Thread.run(Thread.java:724)
  Caused by: java.lang.ExceptionInInitializerError
      at com.semiz.HibernateUtil.&lt;clinit&gt;(HibernateUtil.java:30)
      at com.semiz.Data.addMember(Data.java:22)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:606)
      at javax.el.ELUtil.invokeMethod(ELUtil.java:326)
      at javax.el.BeanELResolver.invoke(BeanELResolver.java:536)
      at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
      at com.sun.el.parser.AstValue.invoke(AstValue.java:269)
      at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
      at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
      at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
      at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
      at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
  Caused by: java.lang.NoClassDefFoundError: org/dom4j/DocumentException
      at com.semiz.HibernateUtil.&lt;clinit&gt;(HibernateUtil.java:26)
  Caused by: java.lang.ClassNotFoundException: org.dom4j.DocumentException
      at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1761)
      at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1611)
  </code></pre>