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java.lang.ClassNotFoundException: org.apache.log4j.Category	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3787)	at org.apache.axis.transport.http.AxisHTTPSessionListener.(AxisHTTPSessionListener.java:33)	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)	at java.lang.Class.getDeclaredConstructors0(Native Method)	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)	at java.lang.Class.getConstructor0(Class.java:2699)	at java.lang.Class.getConstructor(Class.java:1657)	at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410)	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)	at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:413)	at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)	at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)	at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)	at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:370)	at org.apache.axis.components.logger.LogFactory.getLog(LogFactory.java:37)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)	at java.lang.Class.newInstance0(Class.java:355)	at java.lang.Class.newInstance(Class.java:308)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:627)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)	at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)	at org.apache.catalina.core.StandardService.start(StandardService.java:516)	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)	at org.apache.catalina.startup.Catalina.start(Catalina.java:578)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)