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org.apache.commons.discovery.DiscoveryException: No implementation defined for org.apache.commons.logging.LogFactory	at org.apache.commons.discovery.tools.ClassUtils.verifyAncestory(ClassUtils.java:176)	at org.apache.commons.discovery.tools.SPInterface.verifyAncestory(SPInterface.java:201)	at org.apache.commons.discovery.tools.SPInterface.newInstance(SPInterface.java:195)	at org.apache.commons.discovery.tools.DiscoverClass.newInstance(DiscoverClass.java:579)	at org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:418)	at org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:378)	at org.apache.axis.components.logger.LogFactory$1.run(LogFactory.java:45)	at java.security.AccessController.doPrivileged(Native Method)	at org.apache.axis.components.logger.LogFactory.getLogFactory(LogFactory.java:41)	at org.apache.axis.components.logger.LogFactory.(LogFactory.java:33)	at org.apache.axis.handlers.BasicHandler.(BasicHandler.java:43)	at org.apache.axis.client.Service.getAxisClient(Service.java:104)	at org.apache.axis.client.Service.(Service.java:113)	at com.agfa.websend.axis.client.user.UserServiceServiceLocator.(UserServiceServiceLocator.java:12)	at com.agfa.websend.sandbox.ws.app.Application.test3UserServiceLogon(Application.java:55)	at com.agfa.websend.sandbox.ws.app.Application.start(Application.java:20)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)	at org.eclipse.equinox.launcher.Main.run(Main.java:1173)	at org.eclipse.equinox.launcher.Main.main(Main.java:1148)