we were using standalone jboss cache 1.0 on oc4j 9.0.5 and 10.1.2 for a long time becuase its very good performance for clustering and very stable. now we are trying to upgrade it to jboss cache 1.4.1.sp5 to run on oc4j 10.1.3. but we got a exception when we can treeCache.start(): 07/10/23 15:49:24 java.lang.ClassCastException: org.apache.commons.logging.impl.LogFactoryImpl 07/10/23 15:49:24 at org.apache.commons.logging.LogFactory.newFactory(LogFactory.java:504) 07/10/23 15:49:24 at org.apache.commons.logging.LogFactory.getFactory(LogFactory.java:350) 07/10/23 15:49:24 at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:381) 07/10/23 15:49:24 at org.jgroups.blocks.MethodCall.(MethodCall.java:46) 07/10/23 15:49:24 at java.lang.Class.forName0(Native Method) 07/10/23 15:49:24 at java.lang.Class.forName(Class.java:164) 07/10/23 15:49:24 at org.jboss.cache.marshall.MethodDeclarations.class$(MethodDeclarations.java:39) 07/10/23 15:49:24 at org.jboss.cache.marshall.MethodDeclarations.(MethodDeclarations.java:268) 07/10/23 15:49:24 at org.jboss.cache.interceptors.CallInterceptor.(CallInterceptor.java:30) 07/10/23 15:49:24 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 07/10/23 15:49:24 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) 07/10/23 15:49:24 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) 07/10/23 15:49:24 at java.lang.reflect.Constructor.newInstance(Constructor.java:494) 07/10/23 15:49:24 at java.lang.Class.newInstance0(Class.java:350) 07/10/23 15:49:24 at java.lang.Class.newInstance(Class.java:303) 07/10/23 15:49:24 at org.jboss.cache.factories.InterceptorChainFactory.createInterceptor(InterceptorChainFactory.java:43) 07/10/23 15:49:24 at org.jboss.cache.factories.InterceptorChainFactory.createPessimisticInterceptorChain(InterceptorChainFactory.java:95) 07/10/23 15:49:24 at org.jboss.cache.factories.InterceptorChainFactory.buildInterceptorChain(InterceptorChainFactory.java:35) 07/10/23 15:49:24 at org.jboss.cache.TreeCache._createService(TreeCache.java:1431) 07/10/23 15:49:24 at org.jboss.cache.TreeCache.createService(TreeCache.java:1388) 07/10/23 15:49:24 at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:245) 07/10/23 15:49:24 at org.jboss.system.ServiceMBeanSupport.create(ServiceMBeanSupport.java:173) 07/10/23 15:49:24 at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:265) 07/10/23 15:49:24 at org.jboss.system.ServiceMBeanSupport.start(ServiceMBeanSupport.java:181) 07/10/23 15:49:24 at com.igm.gml.cache.JbCacheUtil.(JbCacheUtil.java:37) 07/10/23 15:49:24 at com.igm.gml.servlet.initServlet.init(initServlet.java:47) please give me a help. thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098060#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...