初级！望请教各位大神 。tomcat 无缘无故报出 Illegal access: 什么页面也没请求，虽然不影响使用，但是感觉很奇怪

Question

是什么原因。让他出来冒出这个问题。虽然不影响web的正常使用。但是很闹心
共启动了两个，第一个是hibernate。第二个是由struts2搭建的环境。仅仅搭建了个空白的环境。十一月 20, 2017 9:43:00 下午 org.apache.catalina.loader.WebappClassLoaderBase loadClass
信息: Illegal access: this web application instance has been stopped already.  Could not load net.sf.ehcache.store.compound.Segment$1.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
/*
    翻译
这个web应用程序实例已经停止。无法加载net.sf.ehcache.store.compound.Segment 1美元。最后的堆栈跟踪是由于调试目的引起的错误，以及试图终止导致非法访问的线程，并且没有功能影响。
*/
java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1777)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
at net.sf.ehcache.store.compound.Segment$HashIterator.<init>(Segment.java:832)
at net.sf.ehcache.store.compound.Segment.hashIterator(Segment.java:826)
at net.sf.ehcache.store.compound.CompoundStore$HashIterator.<init>(CompoundStore.java:790)
at net.sf.ehcache.store.compound.CompoundStore$KeyIterator.<init>(CompoundStore.java:865)
at net.sf.ehcache.store.compound.CompoundStore$KeyIterator.<init>(CompoundStore.java:865)
at net.sf.ehcache.store.compound.CompoundStore$KeySet.iterator(CompoundStore.java:613)
at net.sf.ehcache.store.compound.factories.DiskStorageFactory$DiskExpiryTask.run(DiskStorageFactory.java:690)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

Answer 1

在请教各位大神一个问题（异常的部分复制），有时候我启动Tomcat，就会报这个错误，有时又可以，就是需要把clean下（但有时不管用，要重复好几次），为什么会出现这个问题，能否杜绝，谢谢啦十二月 02, 2017 12:33:06 上午 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
Unable to load configuration. - action - file:/E:/tomcat/webapps/house/WEB-INF/classes/struts.xml:15:68
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:493)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4950)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5652)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1694)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1684)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: Unable to load configuration. - action - file:/E:/tomcat/webapps/house/WEB-INF/classes/struts.xml:15:68
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:967)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:435)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:479)
... 14 more
Caused by: Error building results for action one_* in namespace / - action - file:/E:/tomcat/webapps/house/WEB-INF/classes/struts.xml:15:68
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:441)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:556)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:295)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:264)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 17 more
Caused by: There is no result type defined for type 'json' mapped with name 'list'.  Did you mean 'json'? - result - file:/E:/tomcat/webapps/house/WEB-INF/classes/struts.xml:17:36
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildResults(XmlConfigurationProvider.java:725)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:439)
... 22 more
............
十二月 02, 2017 12:33:08 上午 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
Unable to load configuration. - action - file:/E:/tomcat/webapps/library/WEB-INF/classes/struts.xml:30:68
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:493)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4950)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5652)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1694)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1684)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: Unable to load configuration. - action - file:/E:/tomcat/webapps/library/WEB-INF/classes/struts.xml:30:68
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:967)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:435)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:479)
... 14 more
Caused by: Action class [action.ListAction] not found - action - file:/E:/tomcat/webapps/library/WEB-INF/classes/struts.xml:30:68
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:486)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:429)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:556)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:295)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:264)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 17 more十二月 02, 2017 12:33:08 上午 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter openSessionInView
java.lang.ClassNotFoundException: web.filter.OpenSessionInView
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:495)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:477)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:113)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4950)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5652)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1694)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1684)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)十二月 02, 2017 12:33:08 上午 org.apache.catalina.core.StandardContext startInternal
严重: One or more Filters failed to start. Full details will be found in the appropriate container log file
十二月 02, 2017 12:33:08 上午 org.apache.catalina.core.StandardContext startInternal
....
十二月 02, 2017 12:33:09 上午 org.apache.catalina.startup.Catalina start
信息: Server startup in 7572 ms