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java.lang.NullPointerException: 	at org.apache.catalina.loader.WebappClassLoader.findResources(WebappClassLoader.java:965)	at java.lang.ClassLoader.getResources(ClassLoader.java:1015)	at org.apache.commons.discovery.jdk.JDK12Hooks.getResources(JDK12Hooks.java:150)	at org.apache.commons.discovery.resource.DiscoverResources$1.getNextResources(DiscoverResources.java:153)	at org.apache.commons.discovery.resource.DiscoverResources$1.getNextResource(DiscoverResources.java:129)	at org.apache.commons.discovery.resource.DiscoverResources$1.hasNext(DiscoverResources.java:116)	at org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.getNextClassNames(DiscoverNamesInFile.java:186)	at org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.getNextClassName(DiscoverNamesInFile.java:170)	at org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.hasNext(DiscoverNamesInFile.java:157)	at org.apache.commons.discovery.resource.names.NameDiscoverers$1.getNextIterator(NameDiscoverers.java:143)	at org.apache.commons.discovery.resource.names.NameDiscoverers$1.hasNext(NameDiscoverers.java:126)	at org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl$1.getNextResource(ResourceClassDiscoverImpl.java:159)	at org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl$1.hasNext(ResourceClassDiscoverImpl.java:147)	at org.apache.axis.configuration.EngineConfigurationFactoryFinder$1.run(EngineConfigurationFactoryFinder.java:120)	at java.security.AccessController.doPrivileged(Native Method)	at org.apache.axis.configuration.EngineConfigurationFactoryFinder.newFactory(EngineConfigurationFactoryFinder.java:113)	at org.apache.axis.transport.http.AxisServletBase.getEngineEnvironment(AxisServletBase.java:273)	at org.apache.axis.transport.http.AxisServletBase.getEngine(AxisServletBase.java:172)	at org.apache.axis.transport.http.AxisServletBase.getOption(AxisServletBase.java:396)	at org.apache.axis.transport.http.AxisServletBase.init(AxisServletBase.java:112)	at javax.servlet.GenericServlet.init(GenericServlet.java:211)	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3951)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4225)	at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1089)	at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1187)	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:292)	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1305)	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1569)	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1558)	at java.lang.Thread.run(Thread.java:595)