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    via oracle.com by Unknown author

    App tries to load in a class through its string name using forName method in class Class, findSystemClass method in class ClassLoader, loadClass method in class ClassLoader but no definition for the class with the specified name could be found.

  2. ,

    Unless you are involved in dynamic class loading and using the Java Reflection API, chances are that the ClassNotFoundException error you are getting is not from your application code but from a referencing API.

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java.lang.ClassNotFoundException: Thor.API.Exceptions.tcVersionNotDefinedException	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at com.megapath.mercury.MercuryConnectorImpl.readChildFormData(MercuryConnectorImpl.java:372)	at com.megapath.mercury.MercuryConnectorImpl.assignMercuryCapabilities(MercuryConnectorImpl.java:339)	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 com.thortech.xl.adapterGlue.ScheduleItemEvents.adpMERCURYCAPABILITYASSIGNMENT.ASSIGNCAPABILITY(adpMERCURYCAPABILITYASSIGNMENT.java:112)	at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpMERCURYCAPABILITYASSIGNMENT.implementation(adpMERCURYCAPABILITYASSIGNMENT.java:60)	at com.thortech.xl.client.events.tcBaseEvent.run(tcBaseEvent.java:196)	at com.thortech.xl.dataobj.tcDataObj.runEvent(tcDataObj.java:2492)	at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(tcScheduleItem.java:2917)	at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(tcScheduleItem.java:547)	at com.thortech.xl.dataobj.tcDataObj.insert(tcDataObj.java:602)	at com.thortech.xl.dataobj.tcDataObj.save(tcDataObj.java:474)	at com.thortech.xl.dataobj.tcOrderItemInfo.processChildTableChange(tcOrderItemInfo.java:655)	at com.thortech.xl.dataobj.tcOrderItemInfo.eventPostInsert(tcOrderItemInfo.java:184)	at com.thortech.xl.dataobj.tcUDProcess.eventPostInsert(tcUDProcess.java:234)	at com.thortech.xl.dataobj.tcDataObj.insert(tcDataObj.java:602)	at com.thortech.xl.dataobj.tcDataObj.save(tcDataObj.java:474)	at com.thortech.xl.dataobj.tcTableDataObj.save(tcTableDataObj.java:2906)	at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.addProcessFormChildData(tcFormInstanceOperationsBean.java:1929)	at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.addProcessFormChildData(tcFormInstanceOperationsBean.java:1593)	at Thor.API.Operations.tcFormInstanceOperationsIntfEJB.addProcessFormChildDatax(Unknown Source)	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 com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)	at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)	at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)	at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)	at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)	at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)	at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)	at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)	at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)	at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)	at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)	at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)	at $Proxy352.addProcessFormChildDatax(Unknown Source)	at Thor.API.Operations.tcFormInstanceOperationsIntfEJB_h6wb8n_tcFormInstanceOperationsIntfRemoteImpl.__WL_invoke(Unknown Source)	at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:40)	at Thor.API.Operations.tcFormInstanceOperationsIntfEJB_h6wb8n_tcFormInstanceOperationsIntfRemoteImpl.addProcessFormChildDatax(Unknown Source)	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 weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:85)	at $Proxy175.addProcessFormChildDatax(Unknown Source)	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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)	at $Proxy350.addProcessFormChildDatax(Unknown Source)	at Thor.API.Operations.tcFormInstanceOperationsIntfDelegate.addProcessFormChildData(Unknown Source)	at com.thortech.xl.webclient.actions.DirectProvisionUserAction.handleVerifyProcessData(DirectProvisionUserAction.java:2093)	at com.thortech.xl.webclient.actions.DirectProvisionUserAction.goNext(DirectProvisionUserAction.java:363)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)	at com.thortech.xl.webclient.actions.tcLookupDispatchAction.execute(tcLookupDispatchAction.java:133)	at com.thortech.xl.webclient.actions.tcActionBase.execute(tcActionBase.java:894)	at com.thortech.xl.webclient.actions.tcAction.execute(tcAction.java:213)	at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)	at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)	at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)	at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)	at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)	at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)	at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at com.thortech.xl.webclient.security.CSRFFilter.doFilter(CSRFFilter.java:76)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.iam.platform.auth.web.PwdMgmtNavigationFilter.doFilter(PwdMgmtNavigationFilter.java:121)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.iam.platform.auth.web.OIMAuthContextFilter.doFilter(OIMAuthContextFilter.java:107)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)	at java.security.AccessController.doPrivileged(Native Method)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)