Websphere8.5.5.2 应用启动异常 Failed to load webapp: Context root /* is already bound.

Websphere8.5.5.2应用部署完毕后，启动应用发生下述异常：

解决方案：修改应用context root设置， Applications > Enterprise Applications > [App Name] > Context Root for Web Modules

参考：https://stackoverflow.com/questions/20839866/application-is-not-starting-in-websphere-8-5-5-but-works-fine-in-tomcat

[6/15/17 15:18:45:380 CST] 0000006f SystemErr     R com.ibm.ws.exception.RuntimeWarning: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: Failed to load webapp: Context root /* is already bound. Cannot start application Central Authentication System &#40&#59;CAS&#41&#59;

[6/15/17 15:18:45:381 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:432)
[6/15/17 15:18:45:381 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:718)
[6/15/17 15:18:45:381 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1177)
[6/15/17 15:18:45:381 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1370)
[6/15/17 15:18:45:381 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:639)
[6/15/17 15:18:45:382 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:968)
[6/15/17 15:18:45:382 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:776)
[6/15/17 15:18:45:382 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplicationDynamically(ApplicationMgrImpl.java:1379)
[6/15/17 15:18:45:382 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2189)
[6/15/17 15:18:45:382 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:446)
[6/15/17 15:18:45:383 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
[6/15/17 15:18:45:383 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:389)
[6/15/17 15:18:45:386 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$500(CompositionUnitMgrImpl.java:117)
[6/15/17 15:18:45:386 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$1.run(CompositionUnitMgrImpl.java:664)
[6/15/17 15:18:45:386 CST] 0000006f SystemErr     R     at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:5384)
[6/15/17 15:18:45:386 CST] 0000006f SystemErr     R     at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5600)
[6/15/17 15:18:45:386 CST] 0000006f SystemErr     R     at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:255)
[6/15/17 15:18:45:386 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:678)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:622)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:1269)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:88)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at java.lang.reflect.Method.invoke(Method.java:618)
[6/15/17 15:18:45:387 CST] 0000006f SystemErr     R     at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:87)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at java.lang.reflect.Method.invoke(Method.java:618)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:291)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at javax.management.modelmbean.RequiredModelMBean$4.run(RequiredModelMBean.java:1260)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at java.security.AccessController.doPrivileged(AccessController.java:300)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
[6/15/17 15:18:45:388 CST] 0000006f SystemErr     R     at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1254)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:1092)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:831)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:813)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1335)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:1228)
[6/15/17 15:18:45:389 CST] 0000006f SystemErr     R     at com.ibm.ws.management.commands.AdminServiceCommands$InvokeCmd.execute(AdminServiceCommands.java:251)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at com.ibm.ws.console.core.mbean.MBeanHelper.invoke(MBeanHelper.java:241)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at com.ibm.ws.console.appdeployment.ApplicationDeploymentCollectionAction.execute(ApplicationDeploymentCollectionAction.java:578)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at org.apache.struts.action.RequestProcessor.processActionPerform(Unknown Source)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at org.apache.struts.action.RequestProcessor.process(Unknown Source)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at org.apache.struts.action.ActionServlet.process(Unknown Source)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at org.apache.struts.action.ActionServlet.doPost(Unknown Source)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
[6/15/17 15:18:45:390 CST] 0000006f SystemErr     R     at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
[6/15/17 15:18:45:391 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)
[6/15/17 15:18:45:391 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)
[6/15/17 15:18:45:391 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
[6/15/17 15:18:45:391 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
[6/15/17 15:18:45:391 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)
[6/15/17 15:18:45:391 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:79)
[6/15/17 15:18:45:392 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:960)
[6/15/17 15:18:45:392 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1064)
[6/15/17 15:18:45:392 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:1385)
[6/15/17 15:18:45:392 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:194)
[6/15/17 15:18:45:392 CST] 0000006f SystemErr     R     at org.apache.struts.action.RequestProcessor.doForward(Unknown Source)
[6/15/17 15:18:45:392 CST] 0000006f SystemErr     R     at org.apache.struts.tiles.TilesRequestProcessor.doForward(Unknown Source)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at org.apache.struts.action.RequestProcessor.processForwardConfig(Unknown Source)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(Unknown Source)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at org.apache.struts.action.RequestProcessor.process(Unknown Source)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at org.apache.struts.action.ActionServlet.process(Unknown Source)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at org.apache.struts.action.ActionServlet.doPost(Unknown Source)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
[6/15/17 15:18:45:393 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.console.core.servlet.WSCUrlFilter.setUpCommandAssistance(WSCUrlFilter.java:955)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.console.core.servlet.WSCUrlFilter.continueStoringTaskState(WSCUrlFilter.java:504)
[6/15/17 15:18:45:394 CST] 0000006f SystemErr     R     at com.ibm.ws.console.core.servlet.WSCUrlFilter.doFilter(WSCUrlFilter.java:325)
[6/15/17 15:18:45:395 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
[6/15/17 15:18:45:400 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
[6/15/17 15:18:45:400 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:960)
[6/15/17 15:18:45:400 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1064)
[6/15/17 15:18:45:400 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:87)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:914)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:459)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:526)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:312)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:283)
[6/15/17 15:18:45:401 CST] 0000006f SystemErr     R     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
[6/15/17 15:18:45:402 CST] 0000006f SystemErr     R     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
[6/15/17 15:18:45:402 CST] 0000006f SystemErr     R     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
[6/15/17 15:18:45:402 CST] 0000006f SystemErr     R     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
[6/15/17 15:18:45:402 CST] 0000006f SystemErr     R     at com.ibm.io.async.AsyncChannelFuture$1.run(AsyncChannelFuture.java:205)
[6/15/17 15:18:45:402 CST] 0000006f SystemErr     R     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1864)
[6/15/17 15:18:45:402 CST] 0000006f SystemErr     R Caused by: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: Failed to load webapp: Context root /* is already bound. Cannot start application Central Authentication System &#40&#59;CAS&#41&#59;
[6/15/17 15:18:45:403 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:759)
[6/15/17 15:18:45:403 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:634)
[6/15/17 15:18:45:403 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:426)
[6/15/17 15:18:45:404 CST] 0000006f SystemErr     R     ... 93 more
[6/15/17 15:18:45:404 CST] 0000006f SystemErr     R Caused by: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: Context root /* is already bound. Cannot start application Central Authentication System (CAS)
[6/15/17 15:18:45:404 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:133)
[6/15/17 15:18:45:404 CST] 0000006f SystemErr     R     at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:746)
[6/15/17 15:18:45:405 CST] 0000006f SystemErr     R     ... 95 more