WAS console error lang.ExceptionInInitializerError

Error Message: java.lang.Exception: java.lang.ExceptionInInitializerError
Error Code: 500
Target Servlet: action
Error Stack:
java.lang.Exception: java.lang.ExceptionInInitializerError
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.loadServlet(ServletWrapper.java:2046)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:761)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:508)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:181)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3994)
     at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:945)
     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1592)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:191)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:454)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:516)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:307)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:278)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
     at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
     at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
     at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
     at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
     at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1662)
     Caused by: java.lang.ExceptionInInitializerError
     at java.lang.J9VMInternals.initialize(J9VMInternals.java:221)
     at java.lang.Class.forNameImpl(Native Method)
     at java.lang.Class.forName(Class.java:278)
     at java.beans.Beans.instantiate(Beans.java:189)
     at java.beans.Beans.instantiate(Beans.java:80)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper$1.run(ServletWrapper.java:1977)
     at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.loadServlet(ServletWrapper.java:1968)
     ... 22 more
     Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: java.lang.ClassNotFoundException: org.apache.commons.logging.impl.Log4JLogger
     at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:532)
     at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:272)
     at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:246)
     at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:395)
     at org.apache.struts.action.ActionServlet.<clinit>(Unknown Source)
     at java.lang.J9VMInternals.initializeImpl(Native Method)
     at java.lang.J9VMInternals.initialize(J9VMInternals.java:199)
     ... 29 more
     Caused by: org.apache.commons.logging.LogConfigurationException: java.lang.ClassNotFoundException: org.apache.commons.logging.impl.Log4JLogger
     at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:416)
     at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:525)
     ... 35 more
     Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.impl.Log4JLogger
     at java.lang.Class.forNameImpl(Native Method)
     at java.lang.Class.forName(Class.java:240)
     at org.apache.commons.logging.impl.LogFactoryImpl$1.run(LogFactoryImpl.java:466)
     at java.security.AccessController.doPrivileged(AccessController.java:359)
     at org.apache.commons.logging.impl.LogFactoryImpl.loadClass(LogFactoryImpl.java:454)
     at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:406)
     ... 36 more
    




Solution---

Make sure you have compatible ant-apache-log4j.jar, log4j, and commons-logging.jar.
Restart you server, it should work fine.

For me it worked :)