title: Spring boot , Eureka server , IBM WAS : logback gives NoClassDefFoundError ch.qos.logback.classic.spi.ThrowableProxy
body: <p>I have a problem when starting a spring boot application (Eureka server )( tried :1.4.0 , 1.3.7 , 1.3.6 ) on IBM Websphere Application server ( 8.5.5.9) with jdk 8 , it throws the following exception :</p>
  
  <pre><code>[8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R com.ibm.ws.exception.RuntimeWarning: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: Failed to load webapp: ch.qos.logback.classic.spi.ThrowableProxy
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:433)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:719)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1178)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1383)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:639)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:972)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:777)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplicationDynamically(ApplicationMgrImpl.java:1380)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2191)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:435)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:378)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$500(CompositionUnitMgrImpl.java:126)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$1.run(CompositionUnitMgrImpl.java:653)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:5486)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5612)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:255)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:667)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:611)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:1270)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at java.lang.reflect.Method.invoke(Method.java:508)
  [8/22/16 14:04:02:483 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:83)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at java.lang.reflect.Method.invoke(Method.java:508)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:287)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at javax.management.modelmbean.RequiredModelMBean$4.run(RequiredModelMBean.java:1263)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at java.security.AccessController.doPrivileged(AccessController.java:620)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1257)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:1096)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:831)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:813)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1350)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:1243)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.management.commands.AdminServiceCommands$InvokeCmd.execute(AdminServiceCommands.java:251)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.console.core.mbean.MBeanHelper.invoke(MBeanHelper.java:246)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.console.appdeployment.ApplicationDeploymentCollectionAction.execute(ApplicationDeploymentCollectionAction.java:608)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.RequestProcessor.processActionPerform(Unknown Source)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.RequestProcessor.process(Unknown Source)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.ActionServlet.process(Unknown Source)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.ActionServlet.doPost(Unknown Source)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1232)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:781)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:480)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:79)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:967)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1107)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:1385)
  [8/22/16 14:04:02:484 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:194)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.RequestProcessor.doForward(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.tiles.TilesRequestProcessor.doForward(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.RequestProcessor.processForwardConfig(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.RequestProcessor.process(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.ActionServlet.process(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at org.apache.struts.action.ActionServlet.doPost(Unknown Source)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1232)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:781)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:480)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.console.core.servlet.WSCUrlFilter.setUpCommandAssistance(WSCUrlFilter.java:964)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.console.core.servlet.WSCUrlFilter.continueStoringTaskState(WSCUrlFilter.java:511)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.console.core.servlet.WSCUrlFilter.doFilter(WSCUrlFilter.java:332)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:967)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1107)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:87)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:940)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1817)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:88)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1820)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
  [8/22/16 14:04:02:485 GMT+02:00] 00000098 SystemErr     R   at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
  [8/22/16 14:04:02:486 GMT+02:00] 00000098 SystemErr     R   at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
  [8/22/16 14:04:02:486 GMT+02:00] 00000098 SystemErr     R   at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
  [8/22/16 14:04:02:486 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1881)
  [8/22/16 14:04:02:486 GMT+02:00] 00000098 SystemErr     R Caused by: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: Failed to load webapp: ch.qos.logback.classic.spi.ThrowableProxy
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:914)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:789)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:427)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   ... 97 more
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R Caused by: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: ch.qos.logback.classic.spi.ThrowableProxy
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:177)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:904)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   ... 99 more
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R Caused by: java.lang.NoClassDefFoundError: ch.qos.logback.classic.spi.ThrowableProxy
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at ch.qos.logback.classic.spi.LoggingEvent.&lt;init&gt;(LoggingEvent.java:119)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:419)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at ch.qos.logback.classic.Logger.log(Logger.java:765)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at org.slf4j.bridge.SLF4JBridgeHandler.callLocationAwareLogger(SLF4JBridgeHandler.java:221)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at org.slf4j.bridge.SLF4JBridgeHandler.publish(SLF4JBridgeHandler.java:303)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at java.util.logging.Logger.log(Logger.java:749)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.logging.WsLogger.deliverOrBuffer(WsLogger.java:407)
  [8/22/16 14:04:02:517 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.logging.WsLogger.log(WsLogger.java:385)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.logging.WsLogger.logp(WsLogger.java:639)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.scanJAR(ScannerContextImpl.java:282)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.scanJARs(ScannerContextImpl.java:315)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.ecs.internal.scan.context.impl.WARScannerContext.scanInternal(WARScannerContext.java:76)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.scan(ScannerContextImpl.java:87)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.ecs.internal.scan.context.impl.ScannerContextImpl.getScannedClasses(ScannerContextImpl.java:70)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.webapp.WebAppImpl.scanForHandlesTypesClasses(WebAppImpl.java:764)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.webapp.WebAppImpl.initializeServletContainerInitializers(WebAppImpl.java:605)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:409)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:88)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:170)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   ... 100 more
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R Caused by: java.lang.ClassNotFoundException: ch.qos.logback.classic.spi.ThrowableProxy
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at java.net.URLClassLoader.findClass(URLClassLoader.java:607)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.bootstrap.ExtClassLoader.findClass(ExtClassLoader.java:243)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:846)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at java.lang.ClassLoader.loadClass(ClassLoader.java:825)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.bootstrap.ExtClassLoader.loadClass(ExtClassLoader.java:134)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at java.lang.ClassLoader.loadClass(ClassLoader.java:805)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.classloader.ProtectionClassLoader.loadClass(ProtectionClassLoader.java:62)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.classloader.ProtectionClassLoader.loadClass(ProtectionClassLoader.java:58)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.classloader.CompoundClassLoader.loadClass(CompoundClassLoader.java:585)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at java.lang.ClassLoader.loadClass(ClassLoader.java:805)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at com.ibm.ws.classloader.CompoundClassLoader.loadClass(CompoundClassLoader.java:585)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   at java.lang.ClassLoader.loadClass(ClassLoader.java:805)
  [8/22/16 14:04:02:518 GMT+02:00] 00000098 SystemErr     R   ... 120 more
  </code></pre>
  
  <p>just include spring-cloud-starter-eureka-server in the pom , deploy to WAS , start the application --> exception generated</p>
  
  <p>if you remove the starter from the pom and deploy the application , application can be started and stopped several times and working normally.</p>
  
  <p>so I can't get why eureka server starter break the logback and give this exception</p>
  
  <p>project attached if anyone interested to give it a try<a href="https://www.dropbox.com/s/zkltexaqhlmjj0m/BootCallBackDemo.rar?dl=0" rel="nofollow">demo application</a>.</p>
  
  <p>note : after deploy the application , stop all the server and start it , application start successfully , stop it and start it solely , it generate the exception again.</p>
  
  <p>i believe it related to classpath loader conflict or something similar but i can't catch it.</p>
  
  <p>any help !</p>