[jboss-user] [JBoss Portal] - org.apache.commons.discovery.DiscoveryException: Class org.a

when i am running webservice through axis client in potlet 2.7.1. I am getting following error. stacktrace: exception javax.servlet.ServletException: Servlet execution threw an exception org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause java.lang.ExceptionInInitializerError org.apache.axis.handlers.BasicHandler.(BasicHandler.java:81) org.apache.axis.client.Service.getAxisClient(Service.java:140) org.apache.axis.client.Service.(Service.java:149) com.sun.j2ee.blueprints.opc.powebservice.PoEndpointBeanServiceLocator.(PoEndpointBeanServiceLocator.java:12) com.sun.j2ee.blueprints.opc.powebservice.PoEndpointBeanProxy._initPoEndpointBeanProxy(PoEndpointBeanProxy.java:18) com.sun.j2ee.blueprints.opc.powebservice.PoEndpointBeanProxy.(PoEndpointBeanProxy.java:8) org.jboss.portal.portlet.samples.SampleClient.service(SampleClient.java:62) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause org.apache.commons.discovery.DiscoveryException: Class org.apache.commons.logging.impl.SLF4FLogFactory does not implement org.apache.commons.logging.LogFactory org.apache.commons.discovery.tools.ClassUtils.verifyAncestory(ClassUtils.java:180) org.apache.commons.discovery.tools.SPInterface.verifyAncestory(SPInterface.java:202) org.apache.commons.discovery.tools.SPInterface.newInstance(SPInterface.java:196) org.apache.commons.discovery.tools.DiscoverClass.newInstance(DiscoverClass.java:579) org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:418) org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:378) org.apache.axis.components.logger.LogFactory$1.run(LogFactory.java:84) java.security.AccessController.doPrivileged(Native Method) org.apache.axis.components.logger.LogFactory.getLogFactory(LogFactory.java:80) org.apache.axis.components.logger.LogFactory.(LogFactory.java:72) org.apache.axis.handlers.BasicHandler.(BasicHandler.java:81) org.apache.axis.client.Service.getAxisClient(Service.java:140) org.apache.axis.client.Service.(Service.java:149) com.sun.j2ee.blueprints.opc.powebservice.PoEndpointBeanServiceLocator.(PoEndpointBeanServiceLocator.java:12) com.sun.j2ee.blueprints.opc.powebservice.PoEndpointBeanProxy._initPoEndpointBeanProxy(PoEndpointBeanProxy.java:18) com.sun.j2ee.blueprints.opc.powebservice.PoEndpointBeanProxy.(PoEndpointBeanProxy.java:8) org.jboss.portal.portlet.samples.SampleClient.service(SampleClient.java:62) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) thanks in advance View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4221836#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...